Dew point meters and measurement tools for compressed air and gases

The choice of the correct measuring device is decisive for correct dew point measurement and humidity measurement in compressed air and gas. Experts around the world trust the reliable dew point measuring devices from CS INSTRUMENTS. Our measurement technology experts will also be happy to help you find the right measuring device to measure and monitor your system's dream point. Simply contact us using our contact form or call us directly, we look forward to advising you!

20 products
The dew point sensors FA510/515 for the typical use in refrigeration dryers

FA 510/515 - Dew point sensor for refrigeration dryers

Dew point measurement from -20 to 50°Ctd. New: with Modbus-RTU interface.

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The dew point sensors FA510/515 for the typical use in refrigeration dryers

FA 510/515 - Dew point sensor for adsorption dryers

For residual moisture measurement after desiccant dryers/ membrane dryers from -80 to 20°Ctd. New: with Modbus-RTU interface.

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FA 500 - Dew point sensor with integrated display and alarm relay

Ideal instrument for dew point measuring for all kinds of dryers.

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FA 550 - for dew point measurement in compressed air and gas under harsh industrial conditions

FA 550 - Dew point sensor in robust die-cast aluminum housing

The FA 550 is ideal for determining the dew point in outdoor areas and harsh industrial environments.

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Dew point sensor FA 515 Ex with ATEX approval

Dew point sensor FA 515 Ex

To measure the (pressure) dew point point in potentially explosive atmospheres. Can be used in many non-aggressive gases.

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Dew point sensor for OEM applications for typical use in desiccant dryers -80°...20°Ctd

FA 505 - Dew point sensor for OEM applications

Extremely long-term stable dew point sensor for adsorption dryers

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Portable dew point meter DP 500 with integrated data logger

DP 500 - Portable dew point meter with integrated data logger

Portable service instrument for dew point measurement for all types of dryers down to -80°Ctd dew point.

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Portable dew point meter DP 510 with third party sensor

DP 510 - Portable dew point meter with third-party sensor

Disposes all functions of our DP 500 and comes with an additional - freely assignable - sensor input.

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Mobile Dew Point Measurement System with integrated Pressure Sensor - DP 400 mobile

DP 400 mobile - Mobile Dew Point Measurement with Pressure Sensor

Mobile dew point measurement system to measure dew point and other pressure dependent values.

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Accessories

Standard measuring chamber for compressed air up to 16 bar

Standard measuring chamber

for compressed air up to 16 bar

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High-pressure measuring chamber for compressed air up to 350 bar

High-pressure measuring chamber up to 350 bar

for dew point measuring in high pressure systems such as diving applications, breathing protection for fire departments etc.

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Measuring chamber for granulate dryers up to 250 mbar

Measuring chamber for granulate dryers and gases

Applicable for -1...16 bar

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Measuring chamber for atmospheric dew point

Measuring chamber for atmospheric dew point

especially for e.g. applications in the medical field

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Control and calibration set for dew point sensors

Control and calibration set for dew point sensors

is screwed onto the dew point sensor and therefore enables an easy and low-priced possibility for on-site control and calibration down to -20°Ctd.

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Measuring chamber stainless steel 1.4304 for dew point measurement

Bypass measuring chamber up to 350 bar

for dew point measurement in gases (stainless steel 1.4305)

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Stainless steel measuring chamber up to 50 bar

Stainless steel measuring chamber for compressed air up to 50 bar

for measuring the dew point in high-pressure systems with purity requirements (e.g. PET bottle production))

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Dew point measurement and monitoring in compressed air systems is essential. Drying of granulate in plastics technology, the generation and usage of various technical gases (N2, O2, Ar, H2) and a lot more applications require professional dew point measurement equipment for perfect operation. Proven and reliable dew point meters from CS INSTRUMENTS are helping customers worldwide to ensure the required product quality in compressed air and gas systems.

As experience manufacturer of dew point sensors CS INSTRUMENTS offer a wide and field proven product portfolio for dew point sensors. Our delivery program includes especially designed stationary and mobile solutions for dew point monitoring of refrigeration, desiccant or membrane driers. Ideal accessories like measuring chambers, dry containers or diffusion tight hose ensure that CS dew point systems are the perfect solution for a trouble-free dew point measurement.

Standard interfaces are 4…20mA, Modbus RTU or M-Bus. Furthermore, all dew point sensors can be combined easily with our data loggers. Dew point sensors form CS INSTRUMENTS enables a reliable and long-term stable monitoring of the pressure dew point in industrial applications from -80 to +20 °C dew point. We recommend the indirect installation with measuring chamber. This enables easy mounting and dismounting of the probe without interruption of the line, a quick response time and optimum sensor protection.

✓ air / compressed air ✓ carbon dioxide (CO2) ✓ methane (CH4)
✓ nitrogen (N2) ✓ oxygen (O2) ✓ natural gas
✓ argon (Ar) ✓ hydrogen (H2) ✓ other gases on demand
  • Measurement of very low dew points down to -80 °Ctd
  • Extreme long-term stability due to internal automatic calibration
  • IP 65 housing that grants a reliable protection in extreme industrial conditions
  • Very fast response times
  • Installation in the dryer by means of G 1/2" thread, optional UNF 5/8” or NPT ½”
  • High accuracy of ± 2 °Ctd
  • On-site calibration and testing with CS control and calibration set

Air always contains water in form of vapor. Since air contrary to water can be compressed the water drops out during the compression procedure in form of condensate. The maximum humidity of the air depends on the temperature and the volume. It does not depend on any quantity. The ambient air can be imagined like a wet sponge. In relaxed condition, it is able to absorb a certain quantity of water. It the sponge is squeezed water drops out. Some water will remain in the sponge even in case of a strong compression. This process is similar to the compressed air applications.

At each temperature, air or other gases can hold a maximum quantity of water. The warmer the air is the more water can be absorbed. Dew point is the temperature to which air or gas must be cooled for the water vapor in it to condense into dew or frost.

Pressure dew point is the temperature to which the compressed air can be cooled down without any condensation. The pressure dew point depends on the final compression pressure. In case of a declining pressure also the pressure dew point drops. For compressed air only the pressure dew point is significant. The atmospheric dew point is misleading and should not be used.