PUF+ and PUF+BL - Polyurethane Foam Sampler Manual

PUF+ Operator’s Manual Date: 3/18/2008 Table of Contents PUF+ NOTATION ................................................................................................................... 1 PUF+ CONNECTIONS............................................................................................................ 3 USER INTERFACE ................................................................................................................. 7 MAIN STATUS SCREEN ....................................................................................................... 9 STEP BY STEP GUIDE......................................................................................................... 11 TIMER .................................................................................................................................... 17 DATA ..................................................................................................................................... 21 SETUP .................................................................................................................................... 27 ETI .......................................................................................................................................... 29 CONFIGURATION................................................................................................................ 31 CALIBRATION ..................................................................................................................... 33 DIAGNOSTICS...................................................................................................................... 39 INFO DISPLAY ..................................................................................................................... 41 DATA FORMATS.................................................................................................................. 43 Tisch Environmental PUF+ Operator’s Manual 1 PUF+ NOTATION Notations and Measurements: The Table below describes the measurement notion used by the PUF+ and units used to report those measurements. Notation Units of Measurement Description Qsys LPM System Flow Rate Qstd LPM Flow Rate at Standard Conditions Reported at 760 mmHg and 25°C Vstd m3 Volume at Standard Conditions Reported at 760 mmHg and 25°C Qamb LPM Flow Rate at Ambient Conditions Vamb m3 Volume at Ambient Conditions Tamb °C Ambient Temperature Tcjc °C Cold Junction Compensation Temperature (compensates Ambient Temp) Pamb mmHg Ambient Pressure (Uncorrected Barometric Pressure) Pdif inH2O Differential Pressure (Orifice Pressure) Pcal inH2O Flow Calibrator Pressure Tisch Environmental PUF+ Operator’s Manual 3 PUF+ CONNECTIONS The descriptions of the various connections to the PUF+ control unit are described below. “Motor” The “Motor” power connection supplies power to the motor being controlled by the PUF+. Both Brush-Type and Brushless-Type motor are supported, but only one may be used at a time. The PUF+ will come configured to match the motor type ordered. THE MOTOR USED WITH THE PUF+ MUST MATCH THE AC POWER BEING SUPPLIED TO THE PUF+. WHILE THE PUF+ CONTROLS THE MOTOR SPEED THROUGH THE EMBEDDED ELECTRONICS, IT CAN NOT CHANGE THE OPERATING VOLTAGE OR THE FREQUENCY OF THE INCOMING POWER THAT IS SUPPLIED TO THE MOTOR. “Power” The “Power” connection supplies power to the PUF+. It should be connected to the AC power line. Operation at both 120 Volts AC and 240 Volts AC are supported. The system is designed to operate at either 50 or 60 Hz without the need to change the configuration of the unit. However, a jumper inside the PUF+ determines the voltage on which the unit operates. DO NOT APPLY 240-VOLT POWER TO THE PUF+ WHILE THE UNIT IS CONFIGURED FOR 120-VOLT OPERATION. THIS WILL DAMAGE THE UNIT. APPLYING 120-VOLT POWER TO THE PUF+ WHILE THE UNITS IS CONFIGURED FOR 240-VOLT OPERATION SHOULD NOT DAMAGE THE UNIT, BUT IS NOT RECOMMENDED OR SUPPORTED. PUF+ Operator’s Manual Tisch Environmental 4 “AutoCal” Pressure The “AutoCal” pressure port is used to make the Pcal measurement. It should be connected to the calibrator during the AutoCal procedure. “Ambient” Pressure The “Ambient” pressure port is used to make the Pamb measurement. It should be left open to atmosphere so that it properly senses the ambient pressure. “Orifice +” Pressure The “Orifice +” pressure port is used to make one half of the Pdif measurement. It should be connected to the upstream port of the orifice (upper most port). Both “Orifice +” and “Orifice –” must be connected to the orifice for proper flow measurement. “Orifice –” Pressure The “Orifice –” pressure port is used to make one half of the Pdif measurement. It should be connected to the downstream port of the orifice (lower most port). Both “Orifice +” and “Orifice –” must be connected to the orifice for proper flow measurement. “Ambient” Temperature The Ambient Temperature thermocouple port is used to make the Tamb measurement. A Type K thermocouple must be used. The sensing tip of the thermocouple should be located so that it receives air flow while the unit is sampling and is always shield from the sun. By locating the sensor in this manner it can be used to monitor two items of importance. Most importantly, this will allow for the accurate measurement of the ambient temperature while the unit is sampling. In addition, when the unit is not sampling this allows the temperature of the filter to be approximated. This can be of importance when sampling for compounds that may changes phases (i.e. from solid to gas) due to changes in temperature. Below, is a picture showing a suitable location for the thermocouple. Note the thermocouple tip should be located so that it does not come into direct contact with any surface. Tisch Environmental PUF+ Operator’s Manual 5 Tisch Environmental PUF+ Operator’s Manual 7 USER INTERFACE The user interface of the PUF+ consists of the display, keypad, power status light, alert status light, and the buzzer. User Interface: The Display The Display is used to inform the user of the status and the configuration of the unit. When used with the Keypad, the user can configure the PUF+ operation. User Interface: The Keypad The Keypad is used by the user to input data into the PUF+ in order to configure the various operating parameters of the unit. PUF+ Operator’s Manual Tisch Environmental 8 User Interface: Power Status Light The Power Status Light indicates when power had been applied to the unit. A solid green light indicates that unit is running and receiving power. A flashing green light indicates that the motor is on. User Interface: Alert Status Light The Alert Status Light indicates the alert state of the unit. The unit monitors several operating parameters and alerts the user to take action when these parameters fall out of the expected range. A flashing red light indicates that a non-fatal alert has occurred. The unit will continue to operate, but may not be functioning optimally. A solid red light indicates a fatal alert has occurred. The unit will not continue to operate. To determine the source of the alert, use the INFO key on the main status screen. See INFO section of this manual for more details. User Interface: Buzzer The Buzzer is primarily used to provide auditory feedback when a key is pressed. In addition, the buzzer provides auditory feedback for the boot loader program used to upgrade the operating firmware of the unit. More details of this function will be provided with the release of new firmware. Tisch Environmental PUF+ Operator’s Manual 9 MAIN STATUS SCREEN The main display of the PUF+ shows the operating status of the unit. If the timer is programmed to start at some time in the future, a countdown timer is shown. If the timer is currently running, a status screen is displayed with various operating parameters of the system. If the timer is not executing or set to start at some future time, a status screen is displayed describing the situation. 12-01-07 12:00:01 TIMER: NOT SET TIMER DATA SETUP INFO Example of the Main Display with the Timer not configured 12-01-07 12:00:01 TIMER: WAITING STARTS IN: 00:09:59 TIMER DATA SETUP INFO Example of the Main Display with the Timer configured to start in the future 12-01-07 12:00:01 TIMER: EXECUTING STOPS IN: 00:04:59 Qamb: 0 Qstd: 0 Pamb: 755 Tamb: 23.0 Pdif: 0.0 Pcal: 0.0 TIMER DATA SETUP INFO Example of the Main Display with the Timer Operating PUF+ Operator’s Manual Tisch Environmental 10 The Soft-Menu Function Keys From the main display, there are four keys used to access the various information and configuration screens of the unit. The four keys are F1, F2, F3, and F4. They are called soft-menu function keys, because there functions change throughout the system. When used, the function assigned to each key is described by the bottom line of the display. While on the Main Display the functions are described by the following table: KEY Display Description Extended Description F1 TIMER Pressing this key accesses the “TIMER” menu. The “TIMER” menu is used to setup the timer or abort the timer if it is currently running. More details on these functions are described in the “TIMER” menu section of this manual. F2 DATA Pressing this key accesses the “DATA” menu. The “DATA” menu is used to work with data collected by system. Data can be reviewed on the display, transfer to a memory card, or erased. More details on these functions are described in the “DATA” menu section of this manual. F3 SETUP Pressing this key accesses the “SETUP” menu. The “SETUP” menu is used to configure, calibrate, and diagnose the unit. More details on these functions are described in the “SETUP” menu section of this manual. F4 INFO Pressing this key accesses the “INFO” display. The “INFO” display show various status and operating parameters for the unit. More details on these functions are described in the “INFO” section of this manual. Tisch Environmental PUF+ Operator’s Manual 11 STEP BY STEP GUIDE This section of the manual serves as a quick guide providing step by step instructions to some of the most important features of the PUF+. For additional details, refer to the relevant section of this manual. Step by Step: Setting the PUF+ System for the First Time The following steps provide instructions for unpacking and setting the unit up for the first time. 1. Unpack unit, take PUF module out of box, unwrap exhaust hose and find piece of calibration tubing (1 per order). 2. Install brushless motor onto ring under Venturi (make sure gasket is in between motor and ring). 3. Install Lid using the included hardware. 4. Install exhaust hose down wind of unit. 5. Insert module into quick disconnect, and take off module cover. Normally, this is where the filter media is located. However, in preparation for the initial flow calibration there should be no media installed, only the glass holder is required. 6. Adjust the yellow thermocouple wire at the top of unit so that is located space that air will enter the unit will sampling, approximately 1” above top of shelter (pull up). 7. Plug the male power cord into AC Power. The system will power up. It is VERY important to apply the correct AC voltage (110 or 220 depending on the system ordered). Applying an incorrect AC Voltage can result in incorrect operation and damage to the system. 8. After, 5 seconds the main screen will appear. 9. Verify that your date and time are correct. If incorrect, follow the step by step instructions for setting the date and time in this section of the manual. 10. The desired operating flow type must be set in accordance with the sampling protocols. Follow the step by step instructions for Setting the Flow Type in this section of the manual. 11. The desired operating flow rate must be set in accordance with the sampling protocols. Follow the step by step instructions for Setting the Flow Rate in this section of the manual. 12. After allowing the unit to warm up for 30 minutes, perform the step by step instructions for Auto Calibrating the Flow. 13. The unit should now be ready for normal operation. PUF+ Operator’s Manual Tisch Environmental 12 Step by Step: Installing the Gable Roof Assembly The Gable Roof is shipped uninstalled to prevent damage that could occur in shipping and must be installed by the user when first setting up the unit. A bag of parts is shipped tapped to the inside of the lid and contains the following: • 5 pcs 10-24 x 1/2 pan head screws • 5 pcs 10-24 stop nuts • 1 pc 6-32 x 3/8 pan head screw • 1 pc 6-32 hex nut • 1 pc 20" chain with" S" hook • 1 pc TE-5001-1O-9 roof back catch • 1 pc TE-5001-1O-1O front catch • 1 pc TE-5001-1O-11 rear lid hasp Installation: 1. Secure TE-500l-1O-1O front catch to the shelter using 2 10-24 pan head screws with stop nuts. 2. Secure TE-5001-10-9 roof back catch to the back of shelter using 10-24 pan head screw with stop nut. 3. Secure TE-5001-1O-11 rear lid hasp inside the lid with the slotted end angled up using 2 - 10-24 pan head screws with stop nuts. Note: These three items may need adjustment after the shelter lid is installed. 4. Remove 4 -10-24 x 1/2 pan head screws from the nutserts in back of shelter. 5. Attach the lid to the shelter by placing the lid hinge plates on the "OUTSIDE" of the shelter top and tighten the 4 - 10-24 x 1/2 pan head screws into the nutserts. 6. Adjust the front catch to be sure that the lid slot lowers over it when closing the lid. The rear lid hasp should align with the roof back catch when the lid is open. 7. Attach the chain and "S" hook assembly to the side of the shelter with a 6-32 pan head screw and nut. 8. The lid can now be secured in an open or closed position with the "S" hook. Step by Step: Setting the Date and Time The following steps provide instructions for setting the date and time. 1. From the Main Status Screen, press “F3” key to enter the SETUP menu. 2. Scroll using the arrow keys and select the CONFIGURE menu item and press the “ENT” key. Tisch Environmental PUF+ Operator’s Manual 13 3. Select “SET DATE” and press the “ENT” key. If adjusting date and time, the date should always be set first. If only setting the time, proceed to Step 5. 4. Using the numeric keypad enter the starting date for the timer and press the “ENT” key. The date should be entered with leading zero. For example, January 02, 2007 would be entered as 010207. 5. Select “SET TIME” and press the “ENT” key. 6. Using the numeric keypad enter the starting time for the timer and press the “ENT” key. The time should be entered with leading zeros and in 24-hour format. For example, 1:00 PM would be entered as 1300 while 1:00 AM would be entered as 0100. 7. Press the “ESC” key to return to the previous menu. To return to the main status screen, continue pressing the “ESC” key. Step by Step: Setting the Flow Type The following steps provide instructions for setting the flow type which determine whether the system will control flow to maintain constant standard or constant ambient conditions flow rate. This should be set in accordance with the standard operating procedures (SOP) being used. If unsure of which setting to use, select “STANDARD” as this agrees with the older style a manual flow control unit. This should be confirmed with the SOP authors. 1. From the Main Status Screen, press “F3” key to enter the SETUP menu. 2. Scroll using the arrow keys and select the CONFIGURE menu item and press the “ENT” key. 3. Select “FLOW TYPE” and press the “ENT” key. 4. Using the arrow keys select either “STANDARD” or “AMBIENT” to agree with the SOP and press the “ENT” key. 5. Press the “ESC” key to return to the previous menu. To return to the main status screen, continue pressing the “ESC” key. Step by Step: Setting the Sample Flow Rate The following steps provide instructions for setting the flow rate that the unit will operate at during sampling. 1. From the Main Status Screen, press “F3” key to enter the SETUP menu. 2. Scroll using the arrow keys and select the CONFIGURE menu item and press the “ENT” key. 3. Select “FLOW RATE” and press the “ENT” key. 4. Using the numeric keypad, enter flow rate in LPM and press the “ENT” key. This should be the flow rate specified by standard operating procedures (SOP) being used. Many SOPs use 230 LPM as the sampling flow rate. 5. Press the “ESC” key to return to the previous menu. To return to the main status screen, continue pressing the “ESC” key. PUF+ Operator’s Manual Tisch Environmental 14 Step by Step: Auto Calibrating the Flow The following steps provide instructions for using the Auto Calibrate feature for flow calibration. The system comes calibrated from the factory, but the flow rate should always be calibrated anytime the system has been moved. 1. The unit should be powered on for a minimum of 30 minutes before performing any calibration. 2. Remove any sample media from the glass sample holder and filter holder and install the TE-5040A PUF calibrator onto top of module by tightening the three wing nuts. The glass media holder must be installed for the sytem to seal properly. 3. Connect the 4’ piece of tubing from calibrator to Auto Cal port on bottom of PUF+ control unit left of yellow thermo coupler wire (first pressure tap) 4. From the Main Status Screen, press “F3” key to enter the SETUP menu. 5. Scroll using the arrow keys and select the CALIBRATE menu item and press the “ENT” key. 6. Select “Qstd” and press the “ENT” key. This will enter the Qstd calibration screen. Note: Qstd calibration is always done even if operating the unit at FLOW TYPE: AMBIENT. 7. From the Qstd calibration screen, press the “F1” key to add calibration data and begin the calibration process. 8. Select “YES” to the Auto Calibrate question and press the “ENT” key. 9. The system will prompt for the standard m value for the calibrator. Enter the Qstd slope (m) from the TE-5040A orifice transfer calibration worksheet for the attached calibration orifice. 10. The system will prompt for the standard b value for the calibrator. Enter the Qstd intercept (m) from the TE-5040A orifice transfer calibration worksheet for the attached calibration orifice. 11. The system will prompt for the starting pressure at which to begin calibration. This is the differential pressure (in inH20) the system will maintain across the Venturi orifice during the first calibration point. On older manual systems this was measured by the Magnehelic Gage. The typical starting value of 70 is automatically provided. Press the “ENT” key to accept this value and continue. If a different starting point is required per the SOP, enter that value and press the “ENT” key to continue. 12. The motor will now turn on and the system will control the motor speed to maintain the pressure across the Venturi at the desired starting point. 13. The system will monitor the data being collected and collect a data point once it detects the flow at that operating point is stable. 14. The system will then subtract 10 inH20 from the current operating point and collect another data point. This will continue until 5 data points have been collected. This procedure typically takes about 5 minutes, but can take longer especially under winding conditions that can cause the pressure sensor to be noisy. Tisch Environmental PUF+ Operator’s Manual 15 15. Once 5 data points have been collected, the system will calculate the calibration values that should be used and return to the Qstd calibration screen. 16. The “R” value shown on the screen should be observed. It should be greater than 0.990. If not, repeat the calibration process. The “R” value is a measure of how well the values calculated agree with the data collected. 17. Press the “F4” key to exit the calibration screen. 18. If the calibration was satisfactory, select YES to the SAVE CALIBRATION question and press the “ENT” key. 19. Press the “ESC” key to return to the previous menu. To return to the main status screen, continue pressing the “ESC” key. 20. Remove TE-5040A calibration orifice and prepare unit for sampling run by installing the sample media into the glass sample holder and/or filter holder. Step by Step: Setting the Timer The following instructions provide step by step instructions for settings the timer. 1. Starting from the Main Screen, press the F1 key for “TIMER”. 2. Select “DATE” and press the “ENT” key. 3. Using the numeric keypad enter the starting date for the timer and press the “ENT” key. The date should be entered with leading zero. For example, January 02, 2007 would be entered as 010207. 4. Select “TIME” and press the “ENT” key. 5. Using the numeric keypad enter the starting time for the timer and press the “ENT” key. The time should be entered with leading zeros and in 24-hour format. For example, 1:00 PM would be entered as 1300 while 1:00 AM would be entered as 0100. 6. Select “DURATION” and press the “ENT” key. 7. Using the numeric keypad enter the duration timer should run and press the “ENT” key. The duration should be entered in HHMM format with leading zeros. For example: 0024 = 24 minutes 2400 = 24 hours 0240 = 2 hours 4 minutes 8. Select “REPEAT” and press the “ENT” key. Select the desired repeat frequency and press the “ENT” key. Select “NONE” if this event is not to reoccur. The most common choices are included (1 IN 1 for everyday sample, 1 IN 3 for every 3rd day sample, 1 IN 6 for six day sample, and 1 IN 7 for seven day sampling). The CUSTOM option can be used to enter a non-standard duration in accordance with specific sampling protocols. 9. Select “SAVE and EXIT” and press the “ENT” key. This will save the setting and activate the timer. The main screen will appear and the “TIMER” should now show waiting. A second line labeled “STARTS IN” will appear showing a countdown to the timer starting a sample. Step by Step: Viewing Data on the Display PUF+ Operator’s Manual Tisch Environmental 16 The following instructions provide step by step instruction for viewing data for a timer event. 1. Starting from the Main Screen, press the “F2” key to access the “DATA” menu. 2. Select “VIEW PAST SAMPLE” and press the “ENT” key. 3. A list showing the timer start dates and times will be displayed. Select the desired date and time and press the “ENT” key. 4. The first page of the sample data for this timer event will be displayed. The arrow keys can be used to switch to the different pages. Press the “ESC” key to exit and return to the list of available dates and times. Continue press the “ESC” key to return to the Main Screen. Step by Step: Saving Data to the Memory Card The following instructions provide step by step instruction for saving data to the memory card. The memory card provided by Tisch Environmental, Inc must be used to collect data to ensure proper data collection. Do not remove the data card will the unit is saving data to the card. This could cause corruption of the card. 1. Check the memory card to make sure that it is in the unlocked position. If the data card is in the locked position, the unit will not be able to save data to the card and will report an error. 2. Insert the memory card into the slot above the “POWER” status light. 3. Starting from the Main Screen, press the “F2” key to access the “DATA” menu. 4. Select the “SAVE” menu item and press the “ENT” key. This will save the data to the memory card using the comma separated values file format (CSV) which can be viewed using Microsoft Excel or other spreadsheet programs. The format data files created by the unit are described in the DATA FORMATS section of this manual. 5. To eject the memory card, push the card in and then pull the card to remove. 6. Press the “ESC” key to return to the Main Screen. Tisch Environmental PUF+ Operator’s Manual 17 TIMER The PUF+ controller contains a microprocessor based timer that allows for a variety of timing options including: • Single Occurrence Timed Event • Repeating Timed Event (ideal for 1 in X day sample operating protocols) • Flexible Remotely Triggered Timed Event (requires optional remote trigger cable) This section documents the possible configurations that can be used with the timer. To access the timer setup menu, press the “F1” soft-menu function key while the main status display screen is displayed. If the timer is not currently executing, the Timer Setup menu will be displayed. If the timer is currently executing, the option to the “Abort Timer” menu will be displayed. Note: That timer event will not be started while the Timer Setup menu is displayed. For this reason it is important to always use the SAVE and EXIT menu item after the timer has been configured. TIMER SETUP MENU: Basic Timer with Optional Repeat The TIMER SETUP menu allows the user to configure the operation of the timer as desired to meet sampling protocols. The details of the timer setup parameters are described below. TIMER SETUP 04-01-07 12:00:01 ?DATE: 04-20-07 TIME: 00:00 DURATION: 24:00 REPEAT: 00:00 SAVE and EXIT STOP and EXIT The figure above displays an example of the Timer Setup menu. For convenience, the current time and data are displayed on the second line. The details of each menu item are described below. PUF+ Operator’s Manual Tisch Environmental 18 “DATE” Menu Item The DATE menu item is used to specify the start date of the timer. The date must be entered in the MMDDYY format. Leading zeros are required (For example, to sample on January 1, 2007, enter 010107). TIME Menu Item The TIME menu item is used to specify the start time of the timer. The time must be entered in the HHMM format. Leading zeros are required (For example, to sample at 09:30 AM, enter 0930). DURATION Menu Item The DURATION menu item is used to specify the length of time the unit should sample. The duration must be entered in the HHMM format. Leading zeros are required (For example, to sample for 1 hour, enter 0100). This is the intended length of the sample. Power failures or other interruptions will not extend the sample time. For example, if the timer is set to turn on at 12:00 and run for 24 hours, but the power fails for 2 hours. The timer will stop at 12:00 the following day. REPEAT Menu Item The REPEAT menu item is used to specify the interval of time between sample start times. If set to zero (NONE), the repeat feature is disabled and the timer will only execute once. Several standard repeat intervals are selectable. For example, the “1 IN 3” selection will set the repeat interval for sampling every third day (a new sample would start every 72 hours). The CUSTOM selection allows for non-standard repeat intervals to be entered. When entering non-standard repeat intervals, the HHMM format must be used. Leading zeros are required (For example, to sample for 1 hour, enter 0100). SAVE and EXIT Menu Item The SAVE and EXIT menu item saves the current setup and returns to the Main Status Display. STOP and EXIT Menu Item The STOP and EXIT menu item configures the timer so that it will not operate until it is reprogrammed with valid parameters and returns to the Main Status Display. Tisch Environmental PUF+ Operator’s Manual 19 TIMER SETUP MENU: Remote Triggering Option The PUF+ timer also supports timer events triggered via a remote device. In order to use this feature, the unit must be configured to switch the timer into remote trigger mode and the optional remote trigger cable must be used. Use the SETUP>CONFIGURE>TIMER MODE menu item to set the timer mode to REMOTE for remote triggering. For more details see the CONFIGURATION section of this manual. The remote trigger cable is available in two different styles depending on how the remote device operates. o Style 1: Opto Isolated Connection – This is the recommend method of connection, because it electrically isolates the remote device. This style connection requires a +5V switch signal with a current capacity of 30 mA. This style cable can also be used with contact closure type remote devices where remote power is available. o Style 2: Contact Closure Connection using Internal Power – This style is not recommended, because of the possible increased risk of the remote signals causing interference with the electronics. If this connection style is used, care should be taken to insure that the system is wired to not interfere with the with the PUF+ controller. It is also recommended to locate the contact closure as close as possible to the PUF+ Controller. When in remote mode the timer has two different methods of operation. o Method 1: Duration Timed Mode – If the duration is set to a value other than 0, then the timer will execute a timer event that starts when the remote signal is received and last for the set duration. o Method 2: Remote Timed Mode – If the duration is set to a value of 0, then all timing is dependent on remote trigger signal. When the signal is active the unit will activate and operate as long as the signal is active. TIMER SETUP 04-01-07 12:00:01 ?DURATION: 24:00 SAVE and EXIT STOP and EXIT In either mode, the unit records data just like timer mode events. Also, the remote timer mode is automatically repeating as is relies on the remote trigger on when to start. PUF+ Operator’s Manual Tisch Environmental 20 Aborting Timer Operation ABORT TIMER? YES ?NO The ABORT TIMER menu (shown above) is displayed when the “F1” soft-menu function key is pressed from the main status display and the timer is currently executing. This allows the user to stop a currently executing timer event and re-configure the timer to the desired settings. Once a timer event is aborted, the timer will not execute until it has been re-programmed with a valid start time and duration. To stop a timer that has not started use the STOP and EXIT option in the TIMER SETUP menu. Tisch Environmental PUF+ Operator’s Manual 21 DATA The DATA menu allows the data collected by the unit to be viewed, saved to a memory card, or erased. DATA ?VIEW CURRENT SAMPLE VIEW PAST SAMPLE SAVE ERASE “VIEW CURRENT SAMPLE” The “VIEW CURRENT SAMPLE” menu item will display a summary of a currently executing timer sample. More details are provided in the Reviewing Sample Data section. “VIEW PAST SAMPLE” The “VIEW PAST SAMPLE” menu item will display a list of start dates and times for past timer runs. Selecting a date and time will display the summary information collected during the execution of the timer for that start date and time. More details are provided in the Reviewing Sample Data section. “SAVE” The “SAVE” menu item will save all data to a file on an inserted memory card. This data may then be viewed on a PC. The file format is comma separated values with can easily be read by spreadsheet and database programs. “ERASE” The “ERASE” menu item will allows for the individual logs to be erased. Because the unit automatically writes over the oldest collected data, there is normally no use of this feature. It is provided to allow the system’s memory to be periodically erased to eliminate old data from being viewed or saved. PUF+ Operator’s Manual Tisch Environmental 22 Reviewing Data When using either the VIEW CURRENT SAMPLE or VIEW PAST SAMPLE menu items, a series of screens will be displayed that contain data collected during the timer event. Switch between screens us the UP and DOWN ARROW keys. Use the ESC key to return to the DATA menu. TIMER SETUP 04-20-07 12:09:11 MODE: TIMER STR:04-20-07 10:30:00 STP:04-20-07 11:30:00 DURATION: 01:00:00 REPEAT: 00:00:00 The first screen (shown above) displays the timer setup data. This includes the timer mode (either TIMER or REMOTE), the set start date, the set stop date, the set duration of the timed event, and the repeat interval. TIMER DATA 04-20-07 12:09:11 MODE: TIMER STR:04-20-07 10:30:00 STP:04-20-07 11:30:00 DURATION: 01:00:00 The second screen (shown above) displays the timer actual data. This includes the actual start date, the actual stop date and the actual duration. Please note that if a power failure occurs, then it is possible that the values will not match the data from the TIMER SETUP screen. FLAGS COMPLETED: Y EXECUTING: N PAUSED: N ABORTED: N EXPIRED: N POWERFAIL: N Qstd: N Tisch Environmental PUF+ Operator’s Manual 23 The third screen (shown above) displays flags associated with the timer event. The flags are described below. FLAG Description COMPLETED Indicates that the Timer Event has been completed EXECUTING Indicates that the Timer Event is currently executing PAUSED Indicates that the Timer Event is currently paused ABORTED Indicates that the Timer Event was aborted by the user EXPIRED Indicates that the Timer Event expired before it could be started. This can happen if the unit is without power during the entire timer event. POWERFAIL Indicates that a power failure occurred during the Timer Event. Qstd Indicated that the Timer Event is using Qstd for flow control. Qamb: 0 AVG: 260 MIN: 259 MAX: 261 SET: 260 CV: 0.10 VOLUME: 15.58 The fourth screen (shown above) displays the Qamb (ambient conditions) data including the current flow rate, average flow rate, minimum flow rate, and maximum flow rate, set flow rate, coefficient of variation, and the total volume ambient conditions volume. The coefficient of variation is a measure of stability of the flow rate during the test. The SET and CV values are only shown if the unit is set to control the flow at ambient conditions. Qstd: 0 AVG: 260 MIN: 259 MAX: 261 VOLUME: 15.58 The fifth screen (shown above) displays the Qstd (standard conditions) data including the current flow rate, average flow rate, minimum flow rate, and maximum flow rate, set flow rate, coefficient of variation, and the total volume ambient conditions volume. The coefficient of variation is a measure of stability of the flow rate during the test. The SET and CV values are only shown if the unit is set to control the flow at ambient conditions. PUF+ Operator’s Manual Tisch Environmental 24 Tamb: 21.1 AVG: 22.3 MIN: 21.6 MAX: 22.9 Tcjc: 26.6 AVG: 27.0 MIN: 26.5 MAX: 27.7 The sixth screen (shown above) displays the current, average, minimum, and maximum values for the ambient temperature (Tamb) and the cold-junction compensation temperature (Tcjc). Pamb: 759 AVG: 759 MIN: 759 MAX: 760 Pdif: -0.0 AVG: 51.9 MIN: 51.2 MAX: 52.7 The seventh screen (shown above) displays the current, average, minimum, and maximum values for the ambient pressure (Pamb) and the differential pressure (Pdif). Pcal: 0.06 AVG: 6.22 MIN: 5.95 MAX: 6.32 The eighth screen (shown above) displays the current, average, minimum, and maximum values for the calibration pressure (Pcal). Saving Data If the control unit is equipped with the optional data card drive, then the data logs may be saved to the card for later review using a PC. The data card drive is compatible with the popular SD card format used in many digital cameras. The data logs are stored in the CSV (comma separated values) format. In addition to saving the timer sample event logs, the units also saves a configuration log, interval log, calibration log, and power log. Further details on the data format are presented in the DATA LOG FORMATS section of this manual. Tisch Environmental PUF+ Operator’s Manual 25 Notes on the usage of the data card drive: • All data cards are not created equal and some vary greatly in how well they adhere to the specifications. Because of this, we recommend that a card from SanDisk with a capacity of between 64 MB and 2 GB be used. Other manufacturer may also be used but should be tested to verify that they save data correctly before depending on them for routine use. Smaller and larger cards may not function correctly with the data drive and could result in data loss. It is also recommend that a SD card with a write protection switch be selected. • While it possible to save data to a card used for other purpose (i.e. like a digital camera or portable drive), this is not recommended. • Each unit records a single data file that is named with the serial number of the unit. It is therefore possible to use a single data card to save data from multiple units. • If a data card already contains saved data from the same unit, it will be overwritten. • If you experience errors when saving the data, it is possible that the data card is not compatible or has become corrupted. Data cards can become corrupted if they are used for purposes other than saving data from the unit or if the data saving process is interrupted. In most cases, this can be resolved by formatting the card on a PC. Erasing Data ERASE ?EVENT> INTERVAL LOG> CAL LOG> POWER LOG> The ERASE menu (shown above) provides ability to erase the different data logs that are collected by the system. The control unit automatically overwrites the oldest data in each of the logs, so this feature does not need to be used on a routine basis. It can be used in situation where the unit has changed locations and the user no longer wishes to review the data from the other site. Tisch Environmental PUF+ Operator’s Manual 27 SETUP The SETUP menu allows the various operating parameters of the unit to be configured and/or monitored. Some of these parameters include the ETIs, Sensor calibrations, and general diagnostics. SETUP ?ETI> CONFIGURE> CALIBRATE> DIAGNOSTICS> ETI Menu Item The ETI menu item contains information and setting pertaining to the elapsed time indicator maintained by the system. For further details on the ETI’s refer to the ETI section of this manual. Configure Menu Item The CONFIGURE menu item allows various operating parameters to be edited. This includes the setting the date and time, flow rate parameters, timer mode, and other items. For further details on the Configure menu refer to the CONFIGURATION section of this manual. Calibrate Menu Item The CALIBRATE menu item provide calibration function for the various sensors in the system. For more details on the CALIBRATE menu refer to the CALIBRATION section of this manual. Diagnostics Menu Item The DIAGNOSTICS menu item provides item that are helpful in troubleshooting and diagnosing the operation of the unit. Refer to the DIAGNOSTICS section of this manual for additional details. Tisch Environmental PUF+ Operator’s Manual 29 ETI The ETI menu item displays the ETI menu. The ETI menu allows the operating parameters of the units 3 ETI’s to be configured. There are two menu items for each ETI in the system. The first shows the current ETI value in hours. The second shows the point at which an alert will be triggered to notify the user of needed action. Both values are given in hours of motor operation. ETI SETUP ?MTR ETI: 200 MTR ETI ALERT: 5000 CAL ETI: 200 CAL ETI ALERT: 400 USR ETI: 200 USR ETI ALERT: 0 The unit has 3 independent ETIs which can be used to track various maintenance procedures for the unit. Each ETI functions identically and is incremented any time the more is on. ETI Designation Use MTR This is the MOTOR ETI and is used to track motor lifetime and maintenance. CAL This is the CALIBRATION ETI and is used to track calibration schedules. USR This is the USER ETI and has no assigned purpose. It may be used to track other maintenance items that should be performed after some many hours of operation. Clearing an ETI To Clear an ETI, select the desired ETI and press the “CLEAR” key. Setting an ETI Alert Point To set the ETI Alert Point, select the desired ETI Alert and press enter. Then enter the ETI Alert point in hours of motor operation. To disable the ETI Alert, enter a value of 0. This will disable the ETI Alert, but the ETI will continue to increment with motor operation. Tisch Environmental PUF+ Operator’s Manual 31 CONFIGURATION The CONFIGURE menu (shown below) allows for various operating parameter of the unit to be configured. Details are provided below. CONFIGURE ?SET DATE: 04-20-07 SET TIME: 12:11:18 FLOW TYPE: AMBIENT FLOW RATE: 260 LCD CONTRAST: 32 LOG INTERVAL: 5 TIMER MODE: TIMER Setting the Date and Time The SET DATE and SET TIME menu items allow the battery backup real-time clock to be programmed. This clock provides the time base used for operation with the timer. The clock automatically adjusts for leap years, but does not automatically adjust for daylight savings time. If the date needs to be set, it should be set first. The date should be entered in the format MMDDYY with leading zeros. For example, January 3rd, 2007 would be entered as 010307. The time should be entered in the 24 hour format HHMM with leading zero. For example, 1:14 AM would be entered as 0114, while 1:14 PM would be entered as 13:14. Setting the Flow Control Type The FLOW TYPE menu item selects whether the unit will operate in AMBIENT conditions or STANDARD conditions flow. Standard conditions are defined to be 760 mmHg and 25°C Setting the Flow Rate The FLOW RATE menu item determines the operating flow rate for the system and is measured in liters per minute. Setting the LCD Contrast The LCD CONTRAST menu item controls the software contrast adjustment of the LCD. Press the ENT key with the LCD CONTRAST menu item selected to change the LCD contrast setting. Use the “+” and “-” keys to change the contrast level. The contrast level can be set between 0 and 63. Press the “ESC” key when the contrast is at the desired level. The default contrast level is 32. The LCD contrast adjustment can also be accessed by PUF+ Operator’s Manual Tisch Environmental 32 pressing the “+” or “-” keys during the first 5 seconds the unit is turned on (while the startup screen is displayed). Setting the Interval Log Period The LOG INTERVAL menu item determines the time period in minutes over which the data is averaged before an entry is made in the interval data log. Setting the LOG INTERVAL to a value of 0 will disable the interval log. The default value is 5 minutes. Setting the Timer Mode The TIMER MODE menu item determines whether the timer operates as a normal timer or in remote trigger mode. For additional information refer to the TIMER section of this manual. Tisch Environmental PUF+ Operator’s Manual 33 CALIBRATION The CALIBRATE menu allow the user to calibrate the sensors used by the unit. The CALIBRATE menu (shown below) list the sensors in the system, the associated raw sensor values and the values using the current calibration. Pressing the ENT key will begin the calibration process for the selected sensor. The LOAD FACTORY CAL and LOAD DEFAULT CAL menu items will load the calibration values set at the factory or the default values from the firmware. These can be useful when tracking down calibration problems. The factory calibration values are preferred because they compensate for the normal manufacturing variations which the default firmware calibration values do not. CALIBRATE Qsys:( 0) 0 ?Tamb:(39000) 21.2 Tcjc:(21789) 26.9 Pamb:( 3713) 759 Pdif:( 552) -0.0 Pcal:( 332) 0.01 LOAD FACTORY CAL> LOAD DEFAULT CAL> Important Notes on Calibration • Sensors may be calibrated using from 1 to 5 calibration points. There are two exceptions to this. The first is the Tcjc (cold junction compensation temperature). It requires only a single point calibration. The second is the Qsys (system flow rate) which requires 5 points per EPA guidelines. • Single point calibrations while possible, are not recommended (except for Tcjc). Single point calibrations only adjust the offset (A0) of the sensor and do not compensate for any changes in the gain (A1). If single point calibrations are used, the user should verify the gain by checking additional points against a reference. • The ambient temperature (Tamb) is dependent on the cold junction compensation temperature (Tcjc). The cold junction compensation temperature is used to correct the voltage error introduced at the “cold junction” of the thermocouple circuit. This sensor does not normally require calibration once it leaves the factory, but if you wish to calibrate the Tcjc sensor you must locate the reference temperature probe near the thermocouple connection on the electronics. • Flow calibration (Qsys) is dependent on other sensors in the system. It is therefore critical that they be properly calibrated or verified before calibrating the flow. • If the unit has been powered off longer than 15 minutes, please allow 30 to 60 minutes for the electronics to warm up prior to calibrating a sensor. This is to PUF+ Operator’s Manual Tisch Environmental 34 minimize errors that can occur while the electronics are still warming up. The error is typically small, but doing this will provide optimal calibration results. Calibrating a Sensor The procedure for calibrating a sensor is similar regardless of what sensor is being used. The exception to this is the Automatic Flow Calibration method which uses the Pcal sensor attached to a calibration orifice to automatically calibrate the flow with limited user interaction. This is described in the Automatic Flow Calibration section. SENSOR: Tamb POINTS: 0 R:0.0000 CURRENT: 0 ADC: 0 A1: 32.1179 A0: -1.2976 ADD REDO EDIT EXIT The main calibration display is shown above. The SENSOR line shows the name of the sensor being calibrated. The POINTS field shows the current number of calibration point being used to determine the A1 and A0 values. The R field is an indication of how closely the calculated calibration curve matches the raw data. The R field is only valid with 3 or more data points. The closer the R value is to 1, the better the agreement between the calculated and raw data. The CURRENT and ADC values show the calibration value using the current calibration values and the raw analog to digital converter values. The A1 and A0 fields show the current gain and offset values for the sensor. Similar to the Main Status Display, the calibration display uses the soft-menu function keys F1, F2, F3, and F4 to navigate the calibration process. Each of the soft-menu function key is described below. Adding a Calibration Point (F1) Pressing the F1 key (ADD) will begin the process of adding a calibration point to the data used to calibrate the sensor. Adding a calibration point involves providing the unit with a reference signal on the sensor being calibrated and then telling the unit what the value of that signal is using a reference device. The following are screen shots from a adding a calibration point to the Tamb (ambient temperature) sensor. After pressing the F1 key, the screen below is displayed. A default reference value is automatically selected. These are provided as guidelines so that the entire calibration range of the sensors is used for the calibration. If a different value is being applied to the sensor, simply enter the correct reference value. While maintaining a constant reference value to the sensor, press the ENT key to begin data collection. Tisch Environmental PUF+ Operator’s Manual 35 ENTER REFERENCE VALUE: 20.0 Once the ENT key is pressed, the screen below will be displayed. This screen will automatically exit and return to the main calibration screen once the system has collected a stable reading from the applied signal. If the reference signal is not sufficiently stable, this screen may be displayed for a long period of time. In these situations, the user may press the “F1” key to force the unit to collect data even if it is not being detected as stable. This may not result in an optimal calibration, but may be required in cases where the reference in not stable. ACQUIRING DATA TARGET: 21.5 Tamb: 21.6 ADC: 39301 STABLE: YES POINTS SAMPLED: 5 Once back at the main calibration screen, the reference value should now match the calibrated sensor value more closely. This process can be repeated to add different calibration points across the range of operation of the sensor. Redo a Calibration Point (F2) Pressing the F2 key (REDO) will list the current calibration points used to calibrate the sensor. Selecting one of these points allows the calibration point to be performed again. This allows the user to recover to a bad calibration point without having to redo all of the calibration points. The procedure for redoing a calibration point is identical to adding a calibration point, once the desired calibration value is selected. PUF+ Operator’s Manual Tisch Environmental 36 Edit Calibration Constants (F3) Pressing the F3 key (EDIT) allows the A1 (gain) and A0 (offset) calibration constants for the sensor to be manually entered. This feature is useful in trouble shooting the unit or recovering from the incorrect calibrations. Past values for A1 and A0 for each sensor can be found in the calibration log. Exit Calibration (F4) Pressing the F4 key (EXIT) will exit the calibration process and prompt the user save the data the sensor was calibrated. If the user chooses not to save the calibration values, the original calibration values will be restored. Automatic Flow Calibration Because of the tedious and complex nature of the manual flow calibration, the unit incorporates a pressure sensor (Pcal) specifically for automatic the flow rate calibration using the standard calibration orifice. The Pcal sensor replaces the standard slack tube manometer that is typically used for calibration. To start the automatic flow calibration process, answer yes to the Auto Calibrate question asked at the beginning of the ADD calibration point for Qsys. The following steps outline the Automatic Flow Calibration process. The process typically takes a few minutes to complete. 1. The first set is to verify that all other sensors are accurate and working properly. The Automatic Flow Calibration depends on these sensors for measurements required by the calculations made during the flow calibration. 2. Attach the standard calibration orifice to the unit inlet. 3. Attach the calibration port of the orifice to the Pcal pressure port on the control unit. 4. Press the F1 (ADD) soft-menu function key from the Qsys main calibration screen. 5. Select “YES” to the “Auto Calibrate” query and press the “ENT” key. AUTO CALIBRATE: ?YES NO Tisch Environmental PUF+ Operator’s Manual 37 6. The unit will then prompt the user to enter the standard conditions value for the m variable of the calibration orifice. This information can be found with the calibration data provided with the orifice. Press the “ENT” key to continue. The value of the last calibration orifice is displayed by default. And example screen is shown below. ENTER CALIBRATOR STANDARD m: 9.60628 7. The unit will then prompt the user to enter the standard conditions value for the b variable of the calibration orifice. This information can be found with the calibration data provided with the orifice. Press the “ENT” key to continue. The value of the last calibration orifice is displayed by default. And example screen is shown below. ENTER CALIBRATOR STANDARD b: -0.06212 8. The unit will then prompt the user for the starting orifice pressure. This defaults to a value of 70.0 inH2O. During the automatic calibration process, the unit will subtract 10.0 inH2O to get the target orifice pressure for the next data point. For a starting pressure of 70, the calibration points will be 70, 60, 50, 40, and 30. Pressing the “ENT” will begin the automatic calibration process. And example screen is shown below. ENTER STARTING PRESSURE: 70.0 PUF+ Operator’s Manual Tisch Environmental 38 9. Once the automatic calibration process has started, the screen below will be displayed. As the flow becomes stable at each point, the unit will collect a data point once per second until the STABILTY counter reaches 8. If the system becomes unstable during this process, the STABILITY counter will reset and the process will begin again until all 8 data points can be gather will the system is stable. These data points are then averaged and used as one of the five data points for the flow calibration. If the system has difficulty becoming stable, the “F1” key can be pressed to force the system to take data and move on to the next point. This may result in a less than optimal calibration, but may be required in some situation (like calibration the system in high winds). The unit will automatically return to the main calibration screen once all five data points are collected. Pressing the “ESC” key will abort the process and return to the main calibration screen. ACQUIRING DATA POINT: 1 of 5 Pdif(set): 70.0 Pdif(act): 69.9 Pcal(act): 15.0 Qsys(amb): 280 Qcal(amb): 281 STABLITY: 7 10. Once back at the main calibration screen, the R value should be examined. It should be greater than 0.99. If it is not, try calibrating again. Press the F4 (EXIT) soft-menu function key to exit the calibration process. SENSOR: Qsys POINTS: 5 R:0.9950 CURRENT: 0 ADC: 0 A1: 32.1179 A0: -1.2976 ADD REDO EDIT EXIT Tisch Environmental PUF+ Operator’s Manual 39 DIAGNOSTICS The DIAGNOSTICS menu (shown below) provides information and troubleshooting functions to help diagnose any problems that may occur. Details on the various menu items are provided below. DIAGNOSTICS ?Qamb:( 0) 0 Qstd:( 0) 0 Tamb:(39050) 21.5 Tcjc:(21789) 26.9 Pamb:( 3713) 759 Pdif:( 552) -0.0 Pcal:( 332) 0.01 REMOTE SIGNAL: OFF Qsys CONTROL: 0 Pdif CONTROL: 0.0 AC FREQ: 60.0 Diagnosing Sensor Readings The first 7 menu items show the raw and calibrated values for the various sensors. These menu items are updates 1 per second with the latest values read by the system. The values in parenthesis are the raw analog to digital convertor (ADC) values. The values at the end of the line are the calibrated values. The raw ADC values can be used to examine how well a sensor is working regardless of its calibration status. Therefore, it can be useful in tracking down if a sensor is working, but not being calibrated correctly. The raw analog to digital convertor values for Qamb and Qstd will always read zero, since there is no associated analog to digital convertor. There values are calculated from the other sensor values. The raw values for Tamb and Tcjc range from 0 to 65535. The raw values for Pamb, Pdif, and Pcal range from 0 to 4095. Values of 0 and 4095 (or 65535 depending on the sensor in question) indicate that the signal from the sensor has saturated the ADC. If this is observed, the first thing to check is for an external source causing the sensor to be forced out of its expected operating range. Diagnosing the Remote Trigger Signal The REMOTE SIGNAL menu item displays the status of the remote trigger input. This is useful when first connecting the remote device to the unit to verify that the unit is indeed seeing the remote signal. PUF+ Operator’s Manual Tisch Environmental 40 Manual Flow Control via Qsys The Qsys CONTROL menu item allows the flow to be manual controlled at the specified flow rate. This is useful if you need to check the motor for operation after servicing or for flow checks. Manual Flow Control via Pdif The Pdif CONTROL menu item allows the flow to be controlled at the specified orifice differential pressure. This is useful in testing the most basic flow control loop as it eliminates the dependency of all but the Pdif sensor and calibration. If a system is malfunctioning under Qsys CONTROL, but operates correctly with Pdif CONTROL, then this is an indication that something is wrong with the calibration of Qsys or the calibration or sensor of Tamb, Tcjc, or Pamb. Diagnosing the AC Line Frequency The AC FREQ menu item displays the AC Line frequency measured by the unit. The unit uses this measurement in the control loop for brush type motors. If this frequency does not closely match the specification of the motor being used, then the motor will not operate correctly. In addition, this value should be fairly stage varying no more than 1 Hz. If larger variations are observed, then the power being supplied to the unit may not be stable and could result in flow instability. Tisch Environmental PUF+ Operator’s Manual 41 INFO DISPLAY The INFO screens are accessed by pressing the F4 soft-menu function key while the main status screen is displayed. In addition to basic information about the system, these screens also contain the ALERT status screens. If an ALERT condition exists then system will automatically display that screen first. Use the UP and DOWN Arrow keys to switch between screens. Press the ESC key to exit the INFO screens display. TISCHENVIRONMENTAL 01-01-07 12:34:56 The screen above shows the manufacturer’s name and the current date and time. TISCH ENVIRONMETAL PUF+ COPYRIGHT 2006 01-01-07 12:34:56 SN:00000000 FW:01.05.0000 BL:01.02.0000 This screen shows the copyright notice, current date and time, unit serial number, firmware version number, and boot loader version number. ALERTS 1 TIMER ERROR: N ETI – MOTOR: N ETI – CALIBRATE: N ETI – USER: N The ALERTS 1 screen shows the status of the alerts. ALERTS are automatically cleared when the underlying cause is resolved. For example, if the ETI – MOTOR flag is set, then service the motor and resetting the ETI using the ETI menu will clear the flag. PUF+ Operator’s Manual Tisch Environmental 42 ALERTS 2 NO ALERTS 2 The ALERTS 2 screen is reserved for future use and currently contains no alerts. Tisch Environmental PUF+ Operator’s Manual 43 DATA FORMATS The PUF+ creates to files containing data each time the SAVE function is used. Data on the memory card is stored in the CSV (comma separated values) format readable by most spreadsheet programs. The files names are REPORT.CSV and DATA.CSV. They are stored in the following directory on the memory card: \\\\TISCH\\\\DATA\\\\SN\\\\ (where SN is the serial number of the unit). The REPORT.CSV file contains summary data for each sample collected in an easily readable format. The DATA.CSV file contains all data collected by the unit. The individual logs described below are appended one after the other in the DATA.CSV file. The formats of the different logs are described below. REPORT.CSV: Format An Example of the report format is shown below. Description of the format is provided after the example. PUF+ SN:00000000 REPORT RETRIEVED ON 01-08-08 AT 15:38:22 -------- Start Time (Set),12-29-07 12:35:00 Start Time (Act),12-29-07 12:35:00 Duration,01:00:00 Conditions,Standard Flow (Set),250 Flow (Avg),250 Flow CV,0.15 Sample Volume,14.98 Avg Amb Temperature,25.5 Avg Amb Pressure,757 Flags -------- Start Time (Set),12-29-07 14:00:00 Start Time (Act),12-29-07 14:00:00 Duration,01:23:59 Conditions,Standard Flow (Set),250 Flow (Avg),250 Flow CV,0.22 Sample Volume,20.97 Avg Amb Temperature,26.2 Avg Amb Pressure,757 Flags,ABORTED PUF+ Operator’s Manual Tisch Environmental 44 The first line of the report identifies that this unit as a PUF+ with the given serial number and that this is the REPORT format. The second line indicates when the REPORT.CSV file was retrieved from the unit. The “--------” line indicates the beginning of a sample record. The “Start Time (Set)” and “Start Time (Act)” lines indicate when the unit was set to start and when it actually started, respectively. These times could be different if there was a power failure at the beginning of the test and the unit started late. The “Duration” line indicates the actual sampling duration in Hours : Minutes : Seconds. The “Conditions” line indicates whether the test and data provided are being reported at Ambient or Standard Conditions. The “Flow (Set)” and “Flow (Avg)” lines indicate the flow rate set point and average values respectively. The values are reported in L/min with conditions as indicated by the “Conditions” line. The “Flow CV” line provides the value for the coefficient of variation of the flow rate during the test. This is a measure of stability of the flow during the test. The closer the number is to zero the more stable the flow. This value should usually be less than 2%. If it is greater, it could indicate a pending failure of the motor, odd sites conditions (i.e. extremely gusty wind conditions), or someone tampering with the unit during sampling. The “Sample Volume” is the total volume (reported at the value stated in the “Conditions” line) that passed through the sample media during the test. The value is reported in m3. This value may be slightly larger than the value calculated by multiplying the duration by the average flow rate. This is because the volume is recorded from the very beginning of the test, while the average flow calculation starts after 1 minute to keep startup variation in the flow from affecting the average value. The difference is very very small and may not be noticeable on longer test. The “Avg Amb Temperature” line reports the average ambient temperature during the sampling event. The value is reported in degrees C. The “Avg Amb Pressure” line reports the average ambient pressure (aka true barometric pressure) and is reported in mmHg. The “Flags” line reports any items that may be of importance in determining the validity of the data. The individual flags are separated by commas. The possible flags are POWER (which indicates a power failure or brown out occurred during the sampling), ABORTED (which indicates the sampling was aborted by user interaction with the timer), and EXPIRED (which indicates the sampling never occurred, likely because the unit was without power for the entire test). Tisch Environmental PUF+ Operator’s Manual 45 DATA.CSV: General Comments on the Data Record Entries All log entries share some common entries that are best described separately. The log formats were designed so that they could be easily read in either an automated fashion or interrupted manually. In order to accomplish this, several fields that pertain to the format of each line were added at the beginning of each line. All log entries share 3 fields in common that appear at the beginning of each line. The first field is a new record indicator that signifies that start of a new data record. This is signified by a “”. The second field is a log type identifier. This is a numeric value that indicates what type of log this record belongs to. The third field is a record type identifier. This is a numeric field that is used to indicate the format of the remaining record entry. Each data record is terminated by a (carriage return and linefeed). DATA.CSV: Begin and End Records Each log begins with a “Begin” record (record type 1) and end with an “End” record (record type 4). In addition, to marking the start and conclusion of each log, these records indicate the name of the log that was saved, the date and time the record was saved, the model of the unit, and the serial number of the unit. DATA.CSV: Header Records The second record entry of each log is a header entry (record type 2). This record entry identifies the field names for the main record entries (record type 3). DATA.CSV: Main Records The main data records (record type 3) for each log type follow the header record. Refer to the header record of each log type to identify what a given value represents. DATA.CSV: System Log Example The System Log contains information on how the system was configured at the time the log was saved. An example log is shown below. ,0,1,"Begin","System Log",04-20-07 12:34:43,"PUF+","100-0004" ,0,2,"Item","Value" ,0,3,"LOG INTERVAL",1 ,0,3,"LCD CONTRAST",32 ,0,3,"MOTOR TYPE","BRUSHLESS" PUF+ Operator’s Manual Tisch Environmental 46 ,0,3,"MTR ETI",1 ,0,3,"MTR ETI ALERT",0 ,0,3,"CAL ETI",1 ,0,3,"CAL ETI ALERT",0 ,0,3,"USR ETI",1 ,0,3,"USR ETI ALEART",0 ,0,4,"End","System Log",04-20-07 12:34:43,"PUF+","100-0004" DATA.CSV: Event Log Example The Event Log contains the data for each timer event. This is the same data that can be viewed using the VIEW CURRENT SAMPLE and VIEW PAST SAMPLE menu items in the DATA menu. The log entries here are shown wrapped due to space limitations. In the actual data file each record is a single line. ,1,1,"Begin","Event Log",04-20-07 12:34:43,"PUF+","100-0004" ,1,2,"Set Start","Set Stop","Set Duration","Act Start","Act Stop","Act Duration","Tamb Avg","Tamb Min","Tamb Max","Tcjc Avg","Tcjc Min","Tcjc Max","Pamb Avg","Pamb Min","Pamb Max","Pdif Avg","Pdif Min","Pdif Max","Pcal Avg","Pcal Min","Pcal Max","Qamb Avg","Qamb Min","Qamb Max","Qamb Vol","Qstd Avg","Qstd Min","Qstd Max","Qstd Vol","Q Set","Q CV","Flag: Power","Flag: Completed","Flag: Executing","Flag: Paused","Flag: Aborted","Flag: Expired","Flag: Qstd" ,1,3,04-20-07 10:30:00,04-20-07 11:30:00,01:00:00,04-20-07 10:30:00,04-20-07 11:30:00,01:00:00,22.3,21.6,22.9,27.0,26.5,27.7,759,759,760,51.9,51.2,52.7,6.22,5.95,6.32,260,259,261,15.58,259,258,260,15.53,260,0.10,0,1,0,0,0,0,0 ,1,3,04-20-07 11:35:00,04-20-07 11:40:00,00:05:00,04-20-07 11:35:00,04-20-07 11:40:00,00:05:00,22.6,22.3,22.7,27.9,27.9,28.0,760,759,760,52.0,51.3,52.7,6.22,6.06,6.30,260,259,261,1.28,259,258,260,1.28,260,0.09,0,1,0,0,0,0,0 ,1,4,"End","Event Log",04-20-07 12:34:43,"PUF+","100-0004" DATA.CSV: Interval Log Example The Interval Log contains the period averages of the sensors as defined by the LOG INTERVAL parameter in the CONFIGURE menu. The interval log records data constantly (whether the timer is executing or not) and therefore serves as a type of site log for ambient temperature and pressure. They interval log maintains the last 4,608 entries. This equates to 16 days of data with the default 5 minute log interval. ,2,1,"Begin","Interval Log",04-20-07 12:34:44,"PUF+","100-0004" ,2,2,"Time","Tamb","Tcjc","Pamb","Pdif","Pcal","Qamb","Qstd","DAC" ,2,3,04-20-07 10:27:00,21.6,26.5,759,-0.0,-0.01, 0, 0,0 ,2,3,04-20-07 10:28:00,21.5,26.5,759,-0.0,-0.01, 0, 0,0 ,2,3,04-20-07 10:29:00,21.4,26.6,760,-0.0,-0.01, 0, 0,0 ,2,3,04-20-07 10:30:00,21.4,26.6,760,-0.0,-0.01, 0, 0,0 ,2,3,04-20-07 10:31:00,21.5,26.6,760,48.8,5.87,245,244,0 ,2,3,04-20-07 10:32:00,21.6,26.6,760,51.8,6.22,260,259,0 Tisch Environmental PUF+ Operator’s Manual 47 ,2,3,04-20-07 10:33:00,21.6,26.6,760,51.8,6.24,260,259,0 ,2,3,04-20-07 10:34:00,21.7,26.6,760,51.8,6.22,260,259,0 ,2,3,04-20-07 10:35:00,21.7,26.6,760,51.8,6.23,260,259,0 ,2,4,"End","Interval Log",04-20-07 12:34:47,"PUF+","100-0004" DATA.CSV: Power Log Example The Power Log contains information on when the unit started and stopped. This is useful in identifying when power failures occurred and how long they lasted. The last 64 power failures are recorded. This can be important in determining whether a sample can be considered valid if a power failure occurred during the sampling period. The “Source” field is intended to help technical support track down any power related problems with the unit and does not contain any data relating to the actual sampling taken place. ,3,1,"Begin","Power Log",04-20-07 12:34:47,"PUF+","100-0004" ,3,2,"Off","On","Source" ,3,3,04-20-07 10:19:35,04-20-07 10:19:38,130 ,3,3,04-20-07 11:48:50,04-20-07 12:02:50,16 ,3,4,"End","Power Log",04-20-07 12:34:47,"PUF+","100-0004" DATA.CSV: Calibration Log Example The “Calibration Log contains a list of the times, sensors, number of calibration points used in the calibration, the calibration gain (A1) and the calibration offset (A0) of each sensor. The last 64 calibrations are recorded. This information can be used to track how the calibration of the unit changes over time, help identify potential problem before they occur, and identify which users may need additional training in calibration a particular sensor. ,4,1,"Begin","Calibration Log",04-20-07 12:34:47,"PUF+","100-0004" ,4,2,"Time","Sensor","Pts","A1","A0" ,4,3,03-02-07 20:39:29,"Tcjc",1,13.771930,0.000000 ,4,3,03-02-07 20:41:47,"Tamb",2,0.299843,-11935.423828 ,4,3,03-02-07 20:46:11,"Pamb",4,30.914890,-13626.343750 ,4,3,03-02-07 20:48:59,"Pdif",4,3.201837,-1770.477539 ,4,3,03-02-07 20:52:18,"Pcal",4,0.854666,-284.707397 ,4,3,03-02-07 20:55:23,"Pcal",5,0.857291,-287.563842 ,4,3,04-20-07 09:19:46,"Pcal",1,0.857291,-281.191467 ,4,3,04-20-07 11:48:15,"Qstd",5,32.117942,-1.297638 ,4,4,"End","Calibration Log",04-20-07 12:34:48,"PUF+","100-0004"