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pH/ORP Sensors
- Product Details
- Specifications
- Pools & Spas
- Sketch
CHEMTROL® pH and ORP Sensors
A rugged matched pair for continuous measurement in commercial and residential swimming pools, spas and general water treatment. They fit in-line in a flow cell or sensor housing, or hang in the water for submersion, and work with CHEMTROL® controllers and most other pH and ORP instruments.
The impact-resistant epoxy body has a guard over the sensor tip. The sealed, gel-filled Ag/AgCl reference has a ceramic pin-wick junction and a second, coaxial junction that resists fouling and drift, so there is no electrolyte to top up.
The pH sensor (blue) has a fast-response, general-purpose glass bulb; the ORP sensor (red) a solid platinum band fused to the glass. Both come with 3 m of low-noise, double-shielded coaxial cable and a BNC connector.
For a steady flow past the tips and easy calibration, install them in a CHEMTROL® Flow Cell Assembly on a bypass line.
pH and ORP Sensors Specifications
| pH sensor | ORP sensor | |
|---|---|---|
| Measurement | pH | ORP (redox) |
| Range | 0–14 pH | 0–999 mV |
| Sensing element | General-purpose glass bulb, fast response | Solid platinum band fused to the glass |
| Body | Impact-resistant epoxy, blue, guarded tip | Impact-resistant epoxy, red, guarded tip |
| Temperature | 0–60 °C continuous; to 100 °C intermittently | |
| Maximum pressure | 4.1 bar (60 psig) at 60 °C | |
| Reference | Sealed, gel-filled Ag/AgCl | |
| Junction | Ceramic pin wick plus coaxial junction | |
| Wetted materials | Epoxy, ceramic, glass | Epoxy, ceramic, glass, platinum |
| Size | 12 mm diameter × 110 mm | |
| Cable | 3 m low-noise coaxial, double-shielded | |
| Connector | BNC | |
Pools, Spas and Water Treatment
Pool and spa controllers use a pH sensor and an ORP sensor to keep the pH and sanitiser levels right. These sensors fit most sensor housings in commercial and residential controllers. They also suit industrial and municipal water.
Key Features
- Impact-resistant epoxy body with a guard over the tip
- Sealed, gel-filled Ag/AgCl reference: no electrolyte to top up
- Ceramic pin-wick and coaxial junctions that resist fouling and drift
- pH: fast-response, general-purpose glass bulb
- ORP: solid platinum band fused to the glass
- 3 m low-noise, double-shielded coaxial cable with BNC connector
- Works with CHEMTROL® controllers and most pH and ORP instruments
