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Optical Chilled Mirror Dew Point Transmitter

Item# RHCM-40-AL-D

Optical Chilled Mirror Dew Point Transmitter Optical Chilled Mirror Dew Point Transmitter
The RHCM-40 Series dew point transmitter is an optical chilled mirror high performance hygrometer designed to continuously measure the moisture content in gases. The sensor provides accurate long term repeatability and high reliability performance for process control and energy management. The instrument is powered by 24 Vdc or optional AC universal supply 85 to 230 Vac. The RHCM-40 series uses the chilled mirror dew point temperature condensation principle to determine the water vapor concentration in gas mixtures, and a platinum resistance RTD to accurately measure that temperature. Options include air temperature and humidity measurement. There are two selectable analog outputs which include 4 to 20 mA, 0 to 5 Vdc, or 0 to 10 Vdc and an RS232 serial port as well as electrically isolated relay contacts.
RHCM-40-AL-D
  • Wall, Duct and Pipe Mount Models
  • Remote Type Models
  • 4-Wire RTD Measurement for Dew Point
  • ±0.2°C Accuracy for Both Dew Point and Temperature
  • Long-Term Stability and Repeatability
  • RS232, Bi-Directional, Serial Output
  • Electronics Housed in IP65 Enclosure (Wall Mount)
  • Aluminum Housing for Other Configurations
  • 2 Analog Outputs (4 to 20 mA/0 to 5 Vdc to 0 to 10 Vdc Selectable) Optional Features
  • Air Temperature and Humidity
  • 2 Line LCD (Graphical Display with 3 Parameters Displayed at One Time)
  • AC Universal Supply 85 to 230 Vac
  • Flow-Through Sample Chamber U High Pressure (20 bar)
Form Factor
Accuracy Value
Probe Type
Response Time
Measurement Units
Enclosure Type
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Quantity Price each
1-4 $2,970.00
5-9 $2,821.50
10-24 $2,762.10
25-49 $2,643.30
50-99 $2,583.90
100+ $2,524.50

In stock

Lead Time ( If not in Stock): 6 weeks

Product Specs

  • Connection Size Dew Point: 3 m (10') standard
  • Connection Type Cable
  • Battery Type 24 Vdc ±20%
  • Display Type 2 Line LCD (Graphical Display with 3 Parameters Displayed at One Time)
  • Measurement Type Dew Point
  • Measuring Range Dew Point (Standard): -40 to 60°C (-40 to 140°F)
  • Power Source 24 Vdc ±20%
  • Other Features Wall

The RHCM-40 Series dew point transmitter is an optical chilled mirror high performance hygrometer designed to continuously measure the moisture content in gases. The sensor provides accurate long term repeatability and high reliability performance for process control and energy management. The instrument is powered by 24 Vdc or optional AC universal supply 85 to 230 Vac. The RHCM-40 series uses the chilled mirror dew point temperature condensation principle to determine the water vapor concentration in gas mixtures, and a platinum resistance RTD to accurately measure that temperature. Options include air temperature and humidity measurement. There are two selectable analog outputs which include 4 to 20 mA, 0 to 5 Vdc, or 0 to 10 Vdc and an RS232 serial port as well as electrically isolated relay contacts.

  • CE Icon CE

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