Air Quality Test Kit Manual Brochure

Printed in U.S.A©Copyright Air Systems International, Inc. 2000. All Rights Reserved.AIR SYSTEMS INTERNATIONAL, INC.821 Juniper Crescent, Chesapeake, Va. , 23320Telephone (757) 424-3967Toll Free 1-800-866-8100 Fax No. (757) 424-5348 http://www.airsystems.cce-mail: sales@airsystems.ccOperating ManualModelsAQT-02 & AQT-COO2Manual No. MON004(Rev 2 April 2000)MarthaStampAir Systems International, Inc. 821 Juniper Crescent Chesapeake VA 23320Revision 2 April 2000Page 2OVERVIEWThis series of meters are designed to provide accurate readings for oxygen and/or carbon monoxide levels inbreathing air. The unit can be connected to a low pressure (maximum 100psi) respirator coupling found on a Grade-Dfilter device. Bottled air (maximum 6000psi) can also be sampled by adding the high to low pressure adapter (op-tional).SETUP/OPERATIONSTEP 2)After the display(s) stabilize, reading will be asfollows: % Oxygen - 20.9 PPM CO - 00*If accuracy is in question refer to calibrationprocedure. * This display reading applies to ModelAQT-COO2 only.STEP 1)Place the "on/off/test" switch in the onposition. If amber light is illuminatedreplace the 9-volt batteries.STEP 3)Plug sample hose into couplinglocated on left side of box.STEP 4)Plug free end of sample hose (1/4" Hansenplug) into coupling on Grade-D filtrationdevice.STEP 5)Open the flowmeter valve by turningthe knob counterclockwise until theflow ball hovers in the "green bar area"(50-100 cc/min).STEP 6)Sample air flow approximately 1-2 minutes to get anaccurate reading. Record Oxygen and/or CarbonMonoxide readings. Note: Carbon Monoxide levelsnot to exceed 10ppm, oxygen range 19.5% - 23.5%.Page 3 Air Systems International, Inc. 821 Juniper Crescent Chesapeake, VA 23320Revision 2 April 20001. Connect AQT-347LP to the bottled to be tested.2. Close bleed valve. (Turn clockwise).3. Place the "on/off/test" switch in the on position. If amber light is illuminated replace the 9-volt batteries.4. After the display(s) stabilize, reading will be as follows: % Oxygen - 20.9 PPM CO - 00* If accuracy is in question refer to calibration procedure. * This display reading applies to Model AQT-COO2 only.5. Plug sample hose to female coupling on box and coupling on AQT-347LP.6. Open bottle valve.7. Open AQT-347LP regulator by turning clockwise at least 2 full turns..8. Adjust flowmeter until the flow ball hovers in the "green bar area" (50-100cc/min).9. Sample air flow approximately 1-2 minutes to get an accurate reading. Record Oxygen and/or Carbon Monoxide readings. Note: Carbon Monoxide levels not to exceed 10ppm, oxygen range 19.5% - 23.5%.SHUTDOWN1. Close bottle valve.2. Disconnect sample hose from box and adapter.3. Open bleed valve. (Turn counterclockwise).4. Remove AQT-347LP from bottleOVERVIEW - MODEL AQT-347LPThe AQT-347LP is a high to low pressure adapter which allows testing of high pressure bottles (maximum6000psi). for carbon monoxide and/or oxygen deficient breathing air. The adapter consists of a CGA-347 hand tightnut/nipple, high pressure to low pressure regulator, bleed valve, and a 1/4" female coupling. (Note: CGA-347 willwork on a CGA-346).SETUP/OPERATIONAir Systems International, Inc. 821 Juniper Crescent Chesapeake VA 23320Revision 2 April 2000Page 4CALIBRATION PROCEDURESTEP 1)Place the "on/off/test" switch in the onposition and allow monitor to stablizein a clean ambient environment.Calibration Kit - Model No. BBK-20(Ordered Seperately)STEP 2)Turn Oxygen Adjustment screw unitl a20.9% reading is obtained.STEP 3)Install regulator on thecylinder of zero referencegas.STEP 4)Insert the male plug from the referencegas into the socket on the left side ofthe case.STEP 5)Open regulator by turning the knob twoturns counterclockwise.STEP 6)Open the flowmeter valve byturning the knob counter-clockwise until the flow ballhovers in the "green bar area"(50-100 cc/min).STEP 7)Allow digital readout to stabilze.Page 5 Air Systems International, Inc. 821 Juniper Crescent Chesapeake, VA 23320Revision 2 April 2000STEP 8)Adjust "zero" pot adjustment screwuntil "00" reading is obtained.STEP 9)Turn off regulator and remove itfrom the zero air cylinder and in-stall it on the Carbon Monoxidereference gas cylinder.(Calibration of CO Sensor appliesto AQT-COO2 Only)STEP 10)Repeat steps 5 - 6.STEP 11)Adjust the span pot adjustment screwuntil the ppm CO display matches thesame concentration found on the COgas cylinder.STEP 12)Turn off regulator and repeat zero ad-justment procedure (Step 3 - 7) displayshould return to a "00" reading.SHUTDOWNSTEP 1)Disconnect sample hose from boxand coupling.STEP 2)Turn meter "off".Note: Do not remove 9-volt batteriesfrom unit. A 30 - 60 minuterestabilation of the sensor(s) may berequired if the batteries are removedfor more than 1 hour.Air Systems International, Inc. 821 Juniper Crescent Chesapeake VA 23320Revision 2 April 2000Page 6SENSOR REPLACEMENTSTEP 1)Remove the (4) screws on the right and left sideof case. Open the case lid and tip the caseforward. The panel should fall into your hand.If not, lighty pull on the flowmeter knob andthe panel should come free.STEP 2)Carefully remove old sensor(s) from the sensorcup(s) and remove sensor leads. Inspect sensorleads for corrosion and replace if necessary.STEP 3)Install sensor leads onto new sensors and re-place in their respective cups.STEP 4)Place panel in operating position and replace in(4) mounting screws.STEP 5)Turn the unit on and allow 30-45 minutes forthe sensor(s) to stabilze.STEP 6)Calibrate meter.Page 7 Air Systems International, Inc. 821 Juniper Crescent Chesapeake, VA 23320Revision 2 April 2000REPLACEMENT ITEMS