Endress+Hauser CPK9-H127A | pH/ORP Reference Electrode Cable, TOP68 Plug

Endress+Hauser CPK9-H127A | pH/ORP Reference Electrode Cable, TOP68 Plug

Endress+Hauser CPK9-H127A high-impedance coaxial cable. For pH/ORP reference electrodes with TOP68 plug, 7.2mm Ø PVC sheath, IP68 plug head, -25°C to +80°C.

Product Overview

The Endress+Hauser CPK9-H127A​ is a specialized coaxial reference cable​ used to connect pH or redox (ORP) reference electrodes​ (with TOP68 connector) to a transmitter or measuring instrument. It features a TOP68 plug head​ with IP68 protection and a PVC outer sheath. This cable is part of the CPK9 series and is typically used in laboratory, field, or process applications where a separate reference electrode needs to be connected alongside the measuring electrode.

Technical Specifications (Electrical & Functional)

Technical Specifications (Mechanical & Environmental)

Key Features

• TOP68 Connector:​ Secure, IP68-rated threaded connection for reference electrodes; plug head is rotatable for easy orientation.

• Signal Integrity:​ Coaxial construction with high insulation resistance for accurate transmission of the low-current reference potential.

• Robust Design:​ PVC sheath resists water, oils, and mild chemicals in standard industrial and laboratory environments.

• Matched Pair Usage:​ Typically paired with a CPK1/CPK2 cable for the measuring electrode to complete the 2-electrode pH/ORP measurement loop.

Applications

• Laboratory & Field Analysis:​ Connecting separate reference electrodes to portable or benchtop pH meters.

• Process Analytics:​ As part of a 2-electrode (measuring + reference) sensor installation with separate transmitter connection.

• Water Quality Testing:​ Where a combined pH/reference sensor is not used and a dedicated reference half-cell is required.