Make : ANALAB | HSN Code : 8414
Supplied with Digital Temperature / Dew Point Indicator, In-built temperature sensor,
Power Cord, Operational & Instruction Manual with SOP and Warranty Card.
When compressed air is dried in an air dryer, its manufacturer guarantees that the Dryer
will give air of a stated Atmospheric Dew Point. In Refrigeration Air Dryers, this is
generally -20°C while in Heatless & other Adsorption Dryers it is -40°C or below. It is
essential that the dew point of the air be checked on regular basis to ensure smooth
running of the User devices. Atmospheric Dew Point is defined as the temp. when air at
atmospheric pressure gets saturated and any moisture will condense out when the air is
cooled to that temperature.
The dew point apparatus is a simple device which cools the compressed air and also
provides visual indication of the dew point temperature. Dry air enters the glass body of
the apparatus through a valve of the bottom. It swirls around the brightly polished chrome
plated tube and exits to the atmosphere at the top. Ether and dry ice is filled in the tube and
the mixture is stirred with the help of a stirrer. The temperature of the tube is then
measured by a low range temp. Thermometer. The temp. of the tube is progressively
lowered by periodic addition of dry ice to the mixture. When the tube temp. reaches the
dew point temp., moisture will condense on the brightly polished surface, making it
cloudy. The temp. recorded at that time is the dew point temp. As a precautionary
measure, the test should be carried out thrice for verification. The dew point apparatus
can also be used for measurements of dew point temp. In other gases such as nitrogen,
argon, carbon dioxide, oxygen, etc.
Technical Specification
- Measurement Range : -65ºC to 0ºC or better
- Accuracy : ±2ºC or better
- Working Temp Range : up to 50ºC
- Working Pressure Range : up to 2 bar or better
- Power Supply : 230 VAC ±10%, 50 Hz
