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Retraction pH/ORP DynaProbe, Chem864st
- Product Details
- Specifications
- Applications & Features
High-Pressure pH and ORP Sensor for Retraction Assemblies
DynaProbe® sensors are built for the toughest process applications: high temperatures and pressures, strong caustics and harsh industrial plants. Their sealed, solid-state Ag/AgCl reference cell is designed for a long service life in the most severe conditions, and they have been used for decades in pulp and paper, mining, petrochemical, food and beverage and wastewater plants.
The Chem864st is a sealed pH or ORP (redox) sensor for a high-pressure ball-valve insertion and retraction assembly: the sensor goes into the line through the valve, and comes out through it for cleaning or calibration without draining the line. Rated to 20 bar at 140 °C, it suits the hottest, highest-pressure lines.
The body is Kynar® (PVDF) with an integral bulb guard, and the junction a recessed porous Teflon®. Ask us about the retraction assembly for your line.
Retraction DynaProbe Specifications
| Model | Chem864st |
|---|---|
| Measurement | pH or ORP (redox) |
| pH range | 0–14 pH |
| Temperature | 0–140 °C |
| Maximum pressure | 20 bar (300 psig) at 140 °C |
| Body | Kynar® (PVDF), integral bulb guard |
| Wetted materials | Kynar®, Teflon®, glass, 316 stainless steel |
| Reference | Sealed solid-state Ag/AgCl |
| Junction | Recessed porous Teflon® |
| pH glass options | Rugged dome (standard); high-pH glass for pH 13 and above |
| Temperature compensation (option) | Built in: Pt100, Pt1000, 3 kΩ or 301 Ω |
| Cable | Integral, 2.1 m (7 ft) standard; 0.6 m for an extension cable or preamplifier; Teflon® cable above 80 °C |
| Connectors | Ferrule leads, or a BNC fitted on site |
| Installation | High-pressure ball-valve insertion / retraction assembly |
Applications
- High-pressure process lines
- Petrochemical and chemical plants
- Pulp and paper
- Lines that cannot be shut down or drained to service a sensor
Key Features
- Rated to 20 bar (300 psig) at 140 °C
- Removed through the valve for cleaning or calibration
- Kynar® body with an integral bulb guard
- Solid-state reference for long life in severe service
- Works with CHEMTROL® controllers and most pH and ORP instruments
