Determining if an ORP sensor is an analog or digital version

Document ID

Document ID TE8474

Published Date

Published Date 11/13/2017
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Question
Determining if an ORP sensor is an analog or digital version
Summary
Identification for ORP sensor as analog or digital version.
Answer
Hach analog online process ORP sensor model numbers will start with 20, RD, or RC. The digital ORP sensor model numbers would start with DRD, or DRC. Analog ORP sensors can also be connected to a digital controller by using a digital gateway. The appropriate digital gateway model would depend on the type of digital controller it would be connected to.

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