Determining if a process pH sensor is an analog or digital version

Document ID

Document ID TE8473

Published Date

Published Date 01/05/2022
Question
Determining if a process pH sensor is an analog or digital version
Summary
Identification of pH sensor as analog or digital version.
Answer
Hach analog pH sensor model numbers will start with 60, PD, or PC.  The digital pH sensor model numbers would start with DPD, or DPC.  Analog pH 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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