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Help CenterWQ-FDO Highly Accurate and Stable Optical Dissolved Oxygen Sensor
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WQ-FDO Optical Dissolved Oxygen Sensor Description
The WQ-FDO Optical Dissolved Oxygen Transmitter is an instrument designed for measuring dissolved oxygen concentrations in liquids. The WQ-FDO Optical Dissolved Oxygen Transmitters were developed to meet different requirements ranging from surface water monitoring programs to harsh waste water applications. The optical dissolved oxygen transmitter has been specifically designed to meet the demanding requirements of the environmental monitoring and scientific research sectors, providing long term, accurate and reliable dissolved oxygen measurement. The WQ-FDO Optical Dissolved Oxygen Transmitter has extremely low power requirements and a 4-20 mA output making it ideal for incorporation into remote environmental monitoring installations.
WQ-FDO Optical Dissolved Oxygen Sensor Features
• Extremely fast and precise optical DO sensor - outstanding for field and lab applications
• Proven green light technology for long operation life of sensor
• Beveled membrane repells interference that can be caused by air bubbles
• Universal protective armoring available
• Low power consumption and low maintenance
• Simple to integrate and operate
• One year sensor life
WQ-FDO Optical Dissolved Oxygen Sensor Applications
Long and short term monitoring for streams, rivers, lakes, aquaculture, thermocline profiling, industrial outfalls, wastewater, scientific research, homeland security, the food and wine industry, and more.
WQ-FDO Optical Dissolved Oxygen Sensor Specifications
| Dissolved Oxygen | |
| Partial pressure: |
0-400 mbar |
| Accuracy: |
± 0.5 % of value |
| Repeatability: |
0.01 ppm |
| Response time: |
90% in less than 60 seconds |
| Sensor Drift: |
Less than 1% per year |
| Temperature: |
Compensated 32 to 122°F (0 to 50°C) |
| Temperature | |
| Accuracy: |
±0.2°F (±0.1°C) |
| Resolution: |
0.02°F (0.01°C) |
| Range: | 32 to 122°F (0 to 50°C |
| Max Pressure |
35 psi (25m/82ft water depth) |
| Output |
Dual 4-20 mA (Partial Pressure and Temperature) |
| Operating Voltage |
10-30 VDC |
| Current Draw |
24 mA plus both sensor outputs |
| Warm Up Time |
6 sec. min, 8 recommended |
| Operating Temperature |
32 to +122°F (0 to +50°C) |
| Sensor Construction |
Acetyl, stainless steel, cast epoxy |
| Dimensions |
0.86 inch dia. x 8 inch long (22mm dia. x 202mm long) |
| Weight |
8 oz (227 g) |
WQ-FDO Optical Dissolved Oxygen Sensor Ordering & Options
| WQ-FDO Sensors | |
| Order No. |
Output Type |
| WQ-FDO |
Includes 25 ft of cable. Does not include armoring. |
| WQ SC-FDO |
Replaceable Membrane |
| WQEXC |
Extra Sensor Cable, per foot (up to 500 ft) |
| Accessories | |
| Order No. |
Description |
| DD0505 |
Plastic Armor Housing, 1.89 inch (48 mm) dia. |
| DD0510 |
Stainless Steel Armor Housing, 1.89 inch (48 mm) dia. |
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