• Système de mesure en continu de la qualité de l'eau

Système de mesure en continu de la qualité de l'eau

  • Surveillez la température, l'oxygène dissous, le pH, la conductivité...
  • Capteurs robustes et de haute qualité
  • Batterie alimentée pour les endroits éloignés

System for Monitoring Multiple Water Quality Parameters

  • Monitor temperature, DO, pH, conductivity, and 5 additional parameters at the same time
  • High quality, rugged sensors
  • Battery powered for remote locations
  • User-friendly Windowsâ„¢ and Windowsâ„¢ CE-based PDA software included
  • Four sample modes: timed, 10 times per second, logarithmic, and exception
  • Both USB and serial communication ports
  • Rugged, lockable, weather resistant enclosure


Global Water's WQMS Water Quality Monitoring System allows you to monitor multiple water quality parameters with a fully integrated, easy to use, economical system.  The standard Water Quality Monitoring System includes our multichannel datalogger (featuring 7 analog channels and 2 digital channels for data recording) and four of our rugged 4-20 mA water quality sensors for measuring water temperature, pH, conductivity, and dissolved oxygen.  To customize the Water Quality Monitoring System for your application, you can select up to three more analog sensors and up to two digital sensors to monitor additional parameters such as turbidity, ORP, water level, wind speed/direction, rainfall, and more. 

Smart Water Quality Data Recorder

Global Water's WQMS Water Quality Monitoring System allows you to monitor multiple water quality parameters with a fully integrated, easy to use, economical system. The standard Water Quality Monitoring System includes our multichannel datalogger (featuring 7 analog channels and 2 digital channels for data recording) and four of our rugged 4-20 mA water quality sensors for measuring water temperature, pH, conductivity, and dissolved oxygen. To customize the Water Quality Monitoring System for your application, you can select up to three more analog sensors and up to two digital sensors to monitor additional parameters such as turbidity, ORP, water level, wind speed/direction, rainfall, and more. 

Powerful PC and PDA Software

The WQMS Water Quality Monitoring System includes Windowsâ„¢-based Global Logger II software, which makes accessing stored data and setting options easy. The software provides many useful features, such as real time readout, measurement interval and engineering unit selection, station ID setting, and sensor calibration. The WQMS Water Quality Monitoring System also includes Windowsâ„¢ CE based PDA software for simple data collection in the field. Data downloaded from the recorder can easily be opened in any PC spreadsheet program for analysis and graphic presentation. NOTE: The Palm operating system is NOT supported.

Rugged Water Quality Monitoring System Sensors

The WQMS Water Quality Monitoring System comes standard with four rugged and reliable 4-20 mA water quality sensors, including our water temperature sensor, pH sensor, conductivity sensor (with a 0 to 5000µS range standard), and dissolved oxygen sensor. Each sensor is mounted on 25 ft of marine-grade cable, with lengths up to 500 ft available by special order. The sensors' electronics are completely encapsulated in marine-grade epoxy within a stainless steel housing. Each sensor outputs a 4-20 mA signal.

Remote Communication Options

To add remote communication capabilities, select the GL500-Mod Modem Package for telephone modem communications or the RM100 for radio communications . We also offer solar panels and a battery charger to support your WQMS installation.

Customize for Your Application

To customize your WQMS, you can select up to three additional analog sensors and two digital sensors from Global Water's line of rugged water quality, weather, level, and flow sensors. If you require a unique water quality monitoring system to meet the needs of your specific application, Global Water can work with you to design a factory-integrated custom system. Please contact Global Water regarding this option.

Memory Non-volatile flash memory
Power: Voltage 7.2 VDC Min. to 24.0 VDC Absolute Max
Standby Current: 70uA Typical
Logging Current: 5mA Typical + sensor current
Analog Sensor Inputs 4-20mA (0-5VDC as factory option)
Resolution:12-Bit, 4096 Steps
Channels: 7 Input channels + battery voltage monitor
Sensor Warm-up Time: Programmable, 0-60 Sec
Digital Inputs 2 Independent pulse counters
Maximum Input Voltage: 24VDC
Maximum Frequency: 100Hz
Minimum Pulse Width: 2mS
Maximum Count: 65,535 (16-Bit)
Sample Now Input Sample-on-Demand input, software enabled
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 40,879 Recordings for all inputs plus time stamp
Data Overwrite Select memory wrap or unwrap (unwrap will stop logging data once memory is full)
Communication Ports 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)
Enclosure Expanded UV protected PVC (5x2x3 inch (12.7x5x7.6 cm))
Weight 1.5 lbs (680 g) (with weather-proof enclosure)
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
PDA software: CE and Mobile compatible.
Weather-Proof Enclosure
Size 9x7.5x4.5 inch (23x19x11 cm) - Expanded UV protected PVC
Battery 12 Volt, 2.2 A/hr., Rechargeable (Gell Cell)
Weight 3.5 lbs (1.6 kg) (with data logger)
Temperature Sensor
Range -58 to +122°F (-50 to +50°C)
Accuracy ±0.2°F or ±0.1°C
Maximum Pressure (Open Water) 200 psi
Operating Voltage 10-36 VDC
Current Draw Same as sensor output
Warm Up Time 5 seconds minimum
Operating Temperature -58 to +212°F (-50 to +100°C)
Size of Probe 4-1/2 inch L x 3/4 inch Diameter (11.4 cm x 1.9 cm Dia.)
Weight 8 oz (227 g)
pH Sensor
Range 0-14 pH
Accuracy 2% of full scale
Maximum Pressure 40 psi
Operating Voltage 10-30 VDC
Current Draw 5.5 mA plus sensor output
Warm Up Time 3 seconds minimum
Operating Temperature 23 to 131°F (-5 to +55°C)
Size of Probe 10 inch L x 1-1/4 inch Diameter (25.4 cm L x 3.2 cm Dia.)
Weight 1 lb. (454 g)
Conductivity Sensor
Range 0-5,000, 0-10,000, 0-20,000 Micro Siemens (micro mhos) per cm
Accuracy 1% of full scale
Maximum Pressure 50 psi
Operating Voltage 12VDC (± 5%)
Current Draw 0.8 mA plus Sensor output
Warm Up Time 3 seconds minimum
Operating Temperature -40 to +131°F (-40 to +55°C)
Size of Probe 12 inch L x 1 inch Diameter (30.5 cm L x 2.54 cm Dia.)
Weight 8 oz (227 g)
Temperature Compensation 2% per °C
Electrodes 316 Stainless Steel
DO Sensor
Range 0-100% Saturation, 0-8 ppm, temperature compensated to 25°C
Accuracy ±0.5% of full scale
Maximum Pressure 40 psi
Operating Voltage 10-36 VDC
Current Draw 15.5 mA plus sensor output
Warm Up Time 10 seconds minimum
Operating Temperature -40 to +131°F (-40 to +55°C)
Membrane 0.001 FEP Teflon (standard)
Combined Error 2% FS
Size of Probe 11 inch L x 1-1/4 inch Diameter (28 cm L x 3.2 cm Dia.)
Weight 1 lb. (454 g)