Model FSS - Flow Sampling System



Global Water's Flow Sampling System is a unique water monitoring package. This package includes an easy-to-use lightweight composite water sampler, an open channel flow monitor, and a data recorder that includes software, allowing easy upload of data to a laptop, desktop, or PDA for transfer to spreadsheet programs. For more information on supported PDAs click HERE. This compact package is portable for field installation and fully customizable to meet your monitoring needs.

Composite Water Sampler
Global Water's flow-proportional composite water sampler is enclosed in a rugged, rainproof, lockable carrying container. The composite water sampler includes a 2-gallon polyethylene wastewater sample bottle for collecting composite samples, a peristaltic sampling pump, a control panel (no programming required), and a rechargeable gel cell battery. Also provided is a sample pickup hose and a battery charger. Optional additions include glass sample bottles, refrigerated containers, portable ice containers and more. Visit the WS700 Composite Sampler page for more information on the flow proportional composite water sampler.

Open Channel Flow Monitor
Global Water's FC220 Open Channel Flow Monitor is a reliable and accurate instrument for measuring and totalizing open channel flows for all flumes and weirs, as well as for any gravity-type open-channel flow application. The flow meter measures water depth using any 4-20mA water level sensor's output including Global Water's highly accurate submersible pressure transducer or ultrasonic water level sensor and the flow meter's powerful microprocessor instantly calculates and displays water flow and totalizer values in user selectable units using one of several water flow calculation modes. The Open Channel Flow Monitors have an 8-button keypad that easily guides you through the versatile setup menus. Visit the FC220 Open Channel Flow Monitor page for more information.

Flow Data Recorder
Global Water's flow data recorder includes Windows-based and PDA software, which provides many useful features, such as real time monitoring, measurement interval and engineering unit selections, station ID, and sensor calibration. The Global Water Software makes accessing stored data and setting options easy. The flow sampling system monitors both flow rate and total flow recording flow rate and relay output pulses for your records. Data downloaded from the recorder can easily be opened in any PC spreadsheet program for analysis and graphic presentation. Visit the GL500 Datalogger page for more information. NOTE: Model FSS100 flow sampling system does not include datalogger.

Bluetooth Capability
The AK1500 Bluetooth Adaptor was designed to eliminate the need for custom PDA cables to communicate between your PDA and the flow sampling system's data recorder. The adaptor connects to the FSS300 flow sampling system's data recorder serial port using the same interface cable provided with the software-cable kit. The interface operates from a single 9 volt battery and is turned on automatically when the cable connects the flow sampling system and Bluetooth adapter. Because the Bluetooth module consumes power when turned on, it is recommended that the cable be disconnected from the flow sampling system when not in use. A red LED shows the power status and is on continuously while the adaptor is plugged into the flow sampling system. There is also a blue LED that shows the status of the Bluetooth connection.

  • Ideal for wastewater, industrial, and environmental flow sampling
  • Lightweight and easy to carry
  • Rugged construction for harsh environments
  • Supports several different types of flow calculation modes
  • Scalable flow proportional sample triggering
  • Adjustable and repeatable sample volume
  • Peristaltic pump prevents sample contamination
  • Flow Data Recorder is Windows and PDA compatible
  • Easy to use programming system
  • The easiest and most reliable method for collecting water samples

Flow Sampling System Composite Water Sampler

  • Sample Size: 15 composite sample sizes from 50ml to 2 liters plus a Full Bottle discrete setting (Approximate sizes at 4 foot head)
  • Operating Temperature: 32° to +158°F (0° to +70°C)
  • Materials:
    • Enclosure: Expanded UV protected PVC
    • Bottle: 2.5 gallon Polyethylene
    • Pickup Hose: 15 ft (4.6 m) reinforced PVC 1/4 inch ID polyethylene flexible tubing section with intake strainer
    • Pump Tubing: Norprene 1/4 inch ID, 7/16 inch OD
  • Sample Pump:
    • Flow Rate: 1000 ml per minute at a 4 foot head
    • Type: Peristaltic
    • Maximum Lift: ~20 feet (6 m)
  • Battery: Rechargeable 12V 5 AH Gel Cell
  • Battery Life: ~1 hour, continuous pumping under load
  • Standby: 3 months while still retaining enough power to run the pump to capacity

Flow Sampling System Open Channel Flow Monitor

  • Display/Keypad: 16 character x 2 line LCD backlit, 8-button tactile keypad
  • Capacity:
    • Flow: 7 digit maximum
    • Totalizer: 9 digit maximum
    • Level: 5 digit maximum
  • Display Resolution: 3 decimal places maximum, Auto-adjusting
  • Accuracy: Sensor accuracy + equation/table error + 0.1% + 1 digit
  • Units:
    • Level: Feet, inches, meters, centimeters
    • Volume: Cubic feet, gallons, million gallons, cubic meters, liters
    • Time: Seconds, minutes, hours, days
    • Flow: 20 Combinations of volume and time units above
  • Level Sensor Input: 4-20mA 2-Wire or 3-wire, 0-5VDC, 0-1VDC
  • Output: One 4-20mA scalable, 4 independent SPDT relays (8A @ 250VAC, 5A @ 30VDC resistive)
  • Power: 12VDC or 18-24VDC Input, +/-10%
  • Current Draw: 150mA Maximum, <13mA in Power Saving Mode

Equation Formats

  • Manning's equation for round pipes
  • Manning's equation for rectangular pipes
  • Standard flow equation: Q=A*(B+Ch)D
  • 3rd order polynomial: Q=A+Bh+Ch2+Dh3

Pre-defined Tables

  • Parshall: 1', 2', 3', 6', 9', 12', 24', 36', 48', 60', 72'
  • Palmer-Bowlus (4D): 4', 6', 8', 10', 12', 15', 18', 24', 30', 36'
  • H: 0.4HS, 0.6HS, 0.5H, 0.75H, 1.0H, 1.5H, 2.0H
  • Trapezoidal: 60°
  • Weir:
    • V-notch: 22.5°, 30°, 45°, 60°, 90°, 120°
    • Rectangular: 1', 2', 3'
    • Cipolletti: 1', 1.5', 2', 3', 4'
  • NOTE: Table values are calculated based on specific flow equations.

Custom Look-Up Table: One, Factory programmable only, You must provide Global Water with a depth to flow equation or look up table at time of order. Please allow for longer lead times.

Flow Sampling System Datalogger

  • NOTE: FSS100 does not include datalogger
  • Memory: Non-volatile flash memory
  • Power: 12VDC rechargeable battery
  • Standby Current: 70uA Typical
  • Logging Current: 5mA Typical
  • Analog Sensor Inputs: 4-20mA
    • Resolution: 12-Bit, 4096 Steps
    • Sensor Warm-up Time: Programmable, 0-60 Sec
    • FSS200: Flow rate + relay state + battery voltage monitor
    • FSS300: 5 Input channels + flow rate + relay state + battery voltage monitor
  • Digital Inputs:
    • Maximum Input Voltage: 24VDC
    • Maximum Frequency: 100Hz
    • Minimum Pulse Width: 2mS
    • Maximum Count: 65,535 (16-Bit)
    • FSS200: None
    • FSS300: 2
  • Sample Now Input: Sample-on-Demand input, software enabled (FSS300 only)
    • Maximum Input Voltage: 24VDC
    • Minimum Pulse Width: 2mS
  • Sample Modes:
    • Fixed Interval Programmable from 1 Sec. to >1 Year
    • High Speed 10 Samples per second
    • Logarithmic Sample Rate (Approximation)
    • Exception (Log only on deviation from previous reading)
  • Storage Capacity:
    • FSS200: 81,759 Recordings for all inputs plus time stamp
    • FSS300: 40,879 Recordings for all inputs plus time
    • Data Overwrite: Select memory wrap or unwrap (unwrap will stop logging data once memory is full)
  • Communication Ports:
    • FSS200: USB Type B connector
    • FSS300: RS-232 DB9 or USB Type B
    • Selectable Baud Rates: 9600, 19200, 28800, 38400, 57600, 115200
  • Clock: Synchronizes to the time and date of user's computer
  • Operating Temperature: Industrial, -40 to +185°F (-40 to +85°C) (Battery may not apply)

Data Logger Software

  • Compatible with Microsoft's Windows 98, ME, 2000, NT, XP, Vista, and 7
  • Windows and Excel are trademarks of the Microsoft Corporation
  • Tabular Display/Printout
  • Data in standard spreadsheet format (.CSV)
  • Programmable alarm start and stop times
  • Field calibration software and help files included


  • Enclosure: 22x17x9 inch (56x43x23 cm) (HxWxD)
  • Weight: 22lb (10 kg)

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