The Liquisys CLM253 is a standard transmitter for all analog conductivity sensors. Continuous plausibility, process and sensor checks increase operational safety. No matter which of the numerous hardware and software modules you choose, such as relays and bus communication, it adapts perfectly to the measuring task. It also allows the transmitter to be upgraded at any time, and its simple menus and factory calibration make configuration and operation fast and convenient.

Advantages
Greater operational safety: continuous process checking system, user-defined alarm settings, calibration plausibility checks
Extensive functions: conductivity, resistivity and concentration measurement, ultrapure water monitoring in accordance with USP and EP
Convenient operation and service: intuitive user interface, simple calibration, manual contact control
Reduced maintenance: automatic cleaning function triggered by alarm and limit switches (with Chemoclean)
Suitable for a wide range of applications: numerous expansion options such as P(ID) controllers, timers, etc., for all processes

Application areas
The Liquisys CLM253 transmitter can be used with various analog conductivity sensors and is suitable for non-hazardous area measurement in the following industries and utilities:
Chemical industry
Food & beverage
Life sciences
Power & energy
Water & wastewater
Primary materials & metallurgy
The Liquisys CLM253 uses the following communication protocols and interfaces:
0/4...20 mA
HART
PROFIBUS DP

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Source:Endress+Hauserpublic information from the website