Product description
Liquisys M OCM223 / 253 is a transmitter for free chlorine and chlorine dioxide. It is available as a panel-mounted housing (OCM223) or field housing (OCM253). The modular design of the Liquisys M OCM223 / 253 allows easy adaption of the transmitter to a variety of customer requirements. Starting with the basic version for "measurement and alarm generation", the transmitter can be equipped with additional software and hardware modules for special applications. These modules can also be retrofitted as required.

Your benefits:
Field or panel-mounted housing
Universal application
pH compensation for free chlorine
Simple handling
    - Logically arranged menu structure
    - Calibration via CAL button
Safe operation
    - Overvoltage (lightning) protection
    - Direct access for manual contact control
    - User-defined alarm configuration
The basic unit can be extended with:
2 or 4 additional contacts for use as:
    - Limit contacts (also for temperature)
    - P(ID) controller for chlorine and pH
    - Timer for simple rinse processes
    - Complete cleaning with Chemoclean
Plus package:
    - Manual pH compensation for Cl2
    - Any current output configuration via table
    - Automatic cleaning start
    - Process monitoring
    - Live check of sensor
HART® or PROFIBUS PA / DP
2nd current output for temperature, main measured value or actuating variable
Current input for flow rate monitoring with controller shut off or for feedforward control

Field of application
Drinking water
Water treatment
Cooling water
Gas scrubbers
Reverse osmosis
Food processing
Swimming pool water