DEW POINT APPARATUS

When air is cooled, the temp at which condensation takes place is termed the Dew Point (DP). A simple method of determining the DP is to cool the air around a highly polished surface and cooling it. When the DP is reached, condensation on this surface makes it cloudy and the temp observed at this point is the DP. In our Dew Point Measurement System, cooling is done by dry ice ( solid CO2) in a polished tube and temp is measured by a Digital Temp Indicator. This system can be used whenever periodic checking of dew point is required.

For continuous, online measurement system, the DP is determined by measuring change in capacitance of special sensor placed in the air stream. This change is transmitted to a device which displays the DP directly. This System is very expensive and is generally installed in Air Dryers for critical applications.

Online measurement and monitoring of dew point in Compressed Air Systems and Gas Generators used in industry & research labs is becoming extremely important because of stringent quality requirements of products & processes. Sample gas is passed around an imported measurement cell using patented thin-film technology, which measures & transmits its moisture content for display. Standard instrument gives readout as atmospheric dew point. The Online Dew Point Meter has an option for connection to external Alarm through a relay. Online Dew Point Meter with other display units & ranges as well as battery-operated portable version are also available.

  • Technical Specifications of Standard Instrument:

    Measurement Range : -60°C to + 60°C
    Accuracy :  ±2°C
    Working Temp Range : -20°C to + 60°C
    Working Pressure Range : 0 to 20 bar
    Sensor Protection : stainless steel sintered filter
    Supply Voltage: 21 to 28 VDC
    Output : 4-20 mA
    Serial interface for configuration : RS232C

  • Overall dimensions :160L x 320W x 85H
  • Weight : 1.5 Kg