Geneq > Environnement > Turbidité - Mesure

Senseur robuste de turbidité
modèle WQ730


Global Water’s WQ730 Turbidity Sensor is a highly accurate submersible instrument for in situ environmental or process monitoring. The sensor is ideal for a variety of applications, including river monitoring, stream measurement, reservoir water quality testing, groundwater testing, water and wastewater treatment, effluent and industrial control, and more.

Features
  • In situ turbidity measurement
  • Simple and convenient to use
  • 4-20 mA output
  • Marine grade polyurethane jacketed cable with strain relief
  • Rugged stainless steel and Delrin® housing
  • Removable light and debris shield
  • Ideal for a variety of applications

Applications
Ideal for river monitoring, stream measurement, reservoir water quality testing, groundwater testing, water and wastewater treatment, effluent and industrial control, and more.

How it Works
In accordance with USEPA Method 180.1 for turbidity measurement, the WQ730 is a 90 degree scatter nephelometer. The sensor directs a focused beam into the subject water. The light beam reflects off particles in the water, and the resultant light intensity is measured by a photodetector positioned at 90 degrees to the light beam. The detected light intensity is directly proportional to the turbidity of the water. The turbidity sensor uses a second light detector to correct for light intensity variations, color changes, and minor lens fouling.
For environmental monitoring, simply place the sensor directly in the water and position it where the turbidity is to be monitored. For process monitoring, you can place the sensor into a low-pressure pipe for online monitoring using a standard 1.5" compression coupler.

Record, Control, and Display
 For handheld turbidity monitoring, the WQ770-B Turbidity Meter combines the WQ730 with a digital display that reads in either NTU or ppm. You can add recording capabilities to the WQ730 with the GL500 Datalogger, and you can use the sensor to control external devices with the PC300 Controller.

Specification
Output 4-20 mA
Range 0 to 50 NTU and 0 to 1000 NTU
Accuracy ±1% full scale
Method Nephelometer with correction
Operating Voltage 10 to 36 VDC @ 40 MS
Current Draw 30 mA plus sensor output
Warm-up Time 5 seconds minimum
Operating Temperature -10° to +50°C
Materials 306 stainless steel, Delrin®, polyurethane jacketed cable
Maximum Pressure Open Water: 0 to 30 psi
Inline: 30 psi
Light Source Infared LED
Cable Length 25'
Size of Probe 1 ½" dia. x 8.5" long (3.8 cm dia. x 21.6 cm long)
Weight 1 lb ( 454 g)

Ordering Information
WQ730 Turbidity Sensor for Open Water (includes 25' cable)
WQEXC Extra Sensor Cable, per foot (up to 500')