Global Water WQ401 Dissolved Oxygen Sensor
Features
- Fully encapsulated electronics
- 4-20 mA output
- Replaceable dissolved oxygen element
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Global Water WQ401 Dissolved Oxygen Sensor is a rugged and reliable water oxygen measuring device. The WQ401’s sensor is attached to 25 ft of marine grade cable, with lengths up to 500 ft available upon request. The sensor’s output is 4-20 mA with a three-wire configuration. The sensor’s electronics are completely encapsulated in marine-grade epoxy within a stainless steel housing. The unit uses a removable shield and dissolved oxygen element for easy maintenance.
Mechanics
As with all of Global Water’s 4-20 mA output sensors, users can add recording and controlling capabilities to the WQ401 with the GL500 Recorder and PC320 Controller. The GL500 connects to the dissolved oxygen sensor’s 4-20 mA output to record data, and the PC320 Controller connects to the sensor’s output to control pumps or alarms.
| Output | 4-20 mA |
| Range |
0-100% Saturation, 0-8 ppm, temperature compensated to 77°F (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" L x 1-1/4" Diameter (27.9 cm L x 3.2 cm Dia.) |
| Weight | 1 lb. (454 kg) |
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