PH / ORP electrode ABB Instrumentation Analysis

Our broad range of sensing systems apply sensor technologies directed at specific application challenges.

Flowing junction technology is used specifically for pure waters, whereas solid-polymer and solid-matrix sensors are used in aggressive process streams. High temperature measuring electrode are available for applications up to 140°C; while flat glass promotes self-cleaning efficiency in highly fouling media.

The AP121 is a highly process-resistant 12mm combination pH/Redox (ORP) electrode. It is equipped with a rugged solid electrolyte providing effective combat of process poisons and fluctuating pressures. The electrode has all three measuring elements located closely together and a very fast temperature response. This ensures high integrity of calibration and leads to tighter control. Already a number of years in service, the proven multi-pole VP connector facilitates easy connection and disconnection of multi-parameter sensor signals.

- Exceptional resistance to poisoning and pressure
- IP67 (NEMA 6P) ingress protection
- High corrosion resistance and steam sterilizability
- Assured high accuracy of calibration and operation
- Rapid response enabling tighter process control
- Unparalleled resistance to plugging
- Extended life and improved performance

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