Product Description
Walchem’s WDS Series differential pH and ORP sensors are designed for industrial applications to be long-lasting and reliable. Differential measurement technique uses two electrodes, one for the process measurement and the other for the reference measurement.
Product Features
- Replaceable salt bridge for long life
- Field proven differential design
- Transmits signal 3,000 feet (915 meters)
- Walchem preamplifier models are compatible with Walchem controllers
- Conventional preamplifier models are compatible with GLI and Aquametrix (Lisle Metrix) controllers
- Resistant to ground loop problem
Measurement Performance
- Range
- pH: 0 to 14
- ORP: -2000 to 2000 mV
- Sensitivity
- Stability
- pH: 0.03 pH per day, non-cumulative
- ORP: 2 mV per day, non-cumulative
- Temperature
- pH: 23 to 203°F
- ORP: -5 to 95°C
- Pressure Limit
- pH: 100 psi @ 149°F
- ORP: 0.7 MPa @65°C