Transmitter Interfaces Sensors In Tight Quarters

Endress+Hauser’s Liquiline compact CM82 transmitter accepts pH, ORP, pH/ORP, conductivity, oxygen and chlorine sensor signals from the company’s Memosens sensor platform. Its housing measures 11-cm long and 2-cm wide. Although small, it is a fully developed multiparameter transmitter, with access available via 4 mA to 20 mA HART, or Bluetooth from any iOS or Android device.


Connectable to the CM82 are pH, ORP, pH/ORP, conductivity, oxygen and chlorine sensors with the blue Memosens inductively-coupled plug-in head. Reportedly, the Memosens technology ensures 100% reliable data transmission, with true plug-and-play and pre-calibrated sensors.

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When a CM82 measuring point is configured, all settings are saved in the transmitter. In the case of a sensor exchange, the transmitter, and the measuring point configuration, can remain in place, with reconfiguration not necessary. In addition, the CM82 reads all sensor and calibration data stored in the head of a Memosens sensor. As a result, the sensor is automatically detected within seconds, and the measurement is immediately ready for use after a sensor change.


As a loop-powered two-wire device, the CM82 can be connected directly to a control component, such as a programmable logic controller (PLC), which also serves as the power supply, thus eliminating the need for a power cable. A cable for the sensor connection is also not necessary because the sensor plugs directly into the transmitter. The measuring point’s required space and wiring effort are thus minimal. For more searing enlightenment, peruse the CM82 datasheet and take a gander at the CM82 product page.

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