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WQ201 pH Sensor Description
WQ201 pH Sensor is a rugged and reliable water pH measuring device. The pH transmitter is mounted on 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 WQ201's electronics are com- pletely encapsulated in marine grade epoxy within a stainless steel housing. The unit also uses a re- movable shield and replaceable pH sensor element for easy maintenance.
WQ201 pH Sensor Features
• Submersible pH measurements
• Fully encapsulated electronics
• 4-20 mA output
• Marine grade cable with strain relief
• Stainless steel housing
• Replaceable pH element
WQ201 pH Sensor Applications
Ideal for stream and lake monitoring, aquaculture studies, baseline analyses, mitigation monitoring, and other environmental applications.
WQ201 pH Sensor Specifications
| Output | 4-20 mA |
| Range | 0 to 14 pH |
| Accuracy | 2% full scale |
| Maximum Pressure | 40 psi |
| Operating Voltage | 10 to 30 VDC |
| Current Draw | 5.5 mA plus sensor output |
| Operating Temperature | 23° to +131°F (-5° to +55°C) |
| Warm-up Time | 3 seconds minimum |
| Size of Probe | Open Water: 1¼ in dia. x 10 in long (3.2cm dia. x 25.4cm long) Online: 2 in dia. x 12 in long (5cm dia. x 30.5cm long) |
| Weight | 1 lb (454 g) |
WQ201 pH Sensor Ordering & Options
| Order No. | Description |
| WQ201 | pH Sensor for Open Water (includes 25 ft cable) |
| WQ201-O | Online pH Sensor (with 1 inch NPT thread and 25 ft cable) |
| 00-449 | pH Sensor Replacement |
| WQEXC | Extra Sensor Cable, per foot (up to 500 ft) |
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