Polmon Instruments Pvt. Ltd.

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Phone : +91 40 2305 7308 / 3046

Time Sync Clean Room Monitor – RHT74

Time Sync Clean Room Monitor

RHT 74 With Time Display

RHT 74

“RHT74” is specially designed for Clean rooms to meet the requirement of Measurement, Display & Data logging of Relative Humidity, Temperature and Differential Pressure for meeting the Regulatory requirements in API’s & Formulations with Display of Time.


Environmental Monitoring for Clean Rooms with Synchronized Clock

Data logging


1/2/3 Channel with Clock (for Hrs & Mns in 24 Hour Mode) Display with 0.8" Seven Segment Red LED Display.

Min/Max values for RH & Temp can also be displayed on display.

Wide range of Input Options for Remote Tx Interface / Inbuilt Sensors.

Time Synchronization with PLC/SCADA/DCS through RS-485 communication.

Programmable Set points for each parameter (HI/LO) for Visual and LED Announciation.

User configurable (enable/disable) Inbuilt Buzzer to provide audible Process value violation.

Option for Buzzer Acknowledgement and Snoozing.

Process Value violation display indication

Password protected calibration & other programming modes.

Software Calibration & Ranging through soft touch tactile keypad (NFLP) or Magnetic Keys (FLP).

User configurable (enable/disable) Inbuilt Relay (for Process Value) (1- NO, NC)

Relay Output with Programmable Acknowledgement and Snoozing

Opto Isolated RS-485 Communication to transfer the data for storage through Proprietary protocol or MODBUS protocol

MODBUS interface Max 31 Devices without Repeater

Programmable Baud Rate selection 9600/19200/38400

Stand-alone mode working in network fallure condition

Optional 4-20mA O/P for single channel

Stand-alone mode working clock in network fallure condition

Safe area and Hazardous area applications

Clean Room compatible Concealed Enclosure (Depth 45 mm)

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