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. 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.
The online version is encapsulated in a Schedule 80 PVC housing with 1" NPT male threads on the end.
Options
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. The GL500 connects to the dissolved oxygen sensor’s 4-20 mA output to record data.
| 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 | Standard: 11" L x 1-1/4" Diameter (27.9cm L x 3.2cm Dia.) Online: 12" L x 2" Diameter (30.5cm L x 5cm Dia.) |
| Weight | 1 lb. (454 kg) |
Select Options
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