Description: Digital Clean Room Monitoring System CR 120 is a microcontroller based instrument designed for monitoring clean rooms, operation theatres and other controlled environment areas. This instrument digitally displays Rh, temperature and pressure. It has three analogue input channels, which take voltage and current signals from sensors. It is optionally supported with RTD and pressure sensors, which are installed with in the instrument. Each channel has programmable high and low limits with LED annunciation. It has a battery backed real time clock, software calibration with date stamp stored internally. This unit incorporates powerful RS485 communication port to transmit all the data to a central monitoring station or a SCADA on a simple 2-wire multi drop connection. The instrument works on standard 24 V DC for safety. The instruments are supplied with NIST traceable certificates of calibration for the electronic measurement.
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