PRODUCT NEWS · 5 NOVEMBER 2026

Endress+Hauser Liquisys CLM223: Specify the Conductivity Measurement, Not Just the Display Range

Two conductivity readings are only comparable when their measurement conditions are understood. For water-treatment skids, rinse systems and utility panels, sourcing an E+H CLM223 begins with the sensor and measurement basis—not simply the number expected on the display. HKXYTECH welcomes complete-code enquiries for the Liquisys CLM223 series.

Existing E+H portfolio illustration; not a configuration-specific CLM223 photograph.

Temperature compensation belongs in the purchasing brief

When one team quotes an uncompensated reading and another uses a temperature-referenced value, a seemingly simple replacement can become an engineering discussion. Record the existing reference temperature, compensation method, working range and units. These application details help the supplier check the requested configuration without guessing how the process uses the signal.

Where CLM223 fits

Liquisys CLM223 is a conductivity panel transmitter for compatible analog sensors. Manufacturer information identifies a Single-channel conductivity platform in a 96 x 96 mm panel housing, with IP54 protection. Family interface options include 0/4–20 mA, HART and PROFIBUS. Actual sensor inputs, interfaces and optional functions depend on the supplied version.

Three different duties, three different specifications

Water-treatment monitoring: identify the normal conductivity window, alarm thresholds and control-system signal. Low-conductivity service: state the required measurement performance, sensor reference and installation conditions; do not infer ultrapure-water suitability from the series name. Concentration duty: provide the medium, concentration range and temperature range so the available functions can be assessed. Optional concentration or monitoring functions must be confirmed, not presumed.

The sensor cell constant is not an accessory detail

Send the full sensor code and its documented cell constant where applicable. Identify the sensor technology, cable and temperature element. A transmitter range alone does not establish that the complete measuring point suits the application. Retain the existing calibration and configuration record for engineering comparison, and follow the applicable operating instructions during commissioning.

Build an offer that can be compared line by line

Request the complete configured CLM223 code, electrical supply, sensor-input version, required current outputs, relay duties and communication. Separate probes and cables from the transmitter price. For a panel replacement, confirm mounting dimensions, installation depth and terminal arrangement before accepting an alternative. Availability, condition, quantity and dispatch timing require written confirmation against the exact item offered.

CLM223 buying questions

Is CLM223 a pH transmitter?

No. CLM223 is the conductivity model. Do not confuse it with the similarly named CPM223 pH/ORP family.

Does every unit include fieldbus communication?

No family-level options list should be treated as an individual unit's configuration. Confirm HART or the required PROFIBUS variant on the order documentation.

Can I order without a complete code?

You can begin a selection enquiry using CLM223, but final approval needs an agreed configuration. For replacement enquiries, include the complete nameplate code and sensor reference.

What information helps obtain a useful quotation?

Send quantity, destination, deadline, medium, conductivity range, temperature basis, sensor code, power supply and required outputs. Tell us whether the request is for a spare or a new measuring point.

Additional E+H procurement references

For level-instrument requirements, include the complete codes below in your enquiry. Each configuration is checked individually; the list is not a live stock guarantee.

Technical reference: Endress+Hauser Liquisys CLM223. Verify the exact supplied configuration against manufacturer documentation.