CS Instruments DP 500 - Portable Dew Point Meter With Integrated Data Logger

The dew point meter DP 500 with data logger is the ideal portable service instrument for dew point measurement for all types of dryers down to -80°Ctd dew point.


The dew point meter DP 500 with data logger is the ideal portable service instrument for dew point measurement for all types of dryers down to -80°Ctd dew point. The 3.5“ graphic display with touch screen makes the operation very easy. The graphic indication of coloured measuring curves is unique. Ideal for measurement of the current dew point and for graphic indication of the dew point curve/ the switching behavior of the dryer over a longer period of time.

Up to 100 million measured values can be stored with date and measuring site name. The measured data can be transferred to the computer via USB stick. The data can be evaluated comfortably by means of the software CS Soft Basic. Measured data and service reports can be issued easily and quickly.


CS Instruments

CS Instruments

CS Instruments GmbH & Co. KG with locations in 24955 Harrislee and 78052 Villingen-Schwenningen/ Tannheim, is managed by Dipl. Eng. (FH) Wolfgang Blessing as sole Managing Director.

CS Instruments GmbH was established in the year 2002 by Christian Schuldt and Wolfgang Blessing as equal shareholders/Managing Directors.

Wolfgang Blessing already was sound a specialist on the sector of compressed air technology resp. industrial measurement technology long before the establishment of CS Instruments GmbH in the year 2002. Prior to the foundation of CS Instruments GmbH Dipl. Ing. (FH) Wolfgang Blessing acted for more than 10 years as primarily responsible product manager for industrial measurement technology at a worldwide known manufacturer of measuring instruments for compressed air and gases in the Black Forest. The technical knowledge and experience matched with the long-term practical knowledge was the corner stone for the success of CS Instruments.


  • Percise dew point measurement down to -80°Ctd
  • Quick response time
  • 3.5″ graphic display / easy operation via touch screen
  • Integrated data logger for storage of the measured values
  • USB interface for reading out via USB stick
  • Calculates all necessary moisture parameters like g/m³, mg/m³, ppm V/V, g/kg, °Ctdatm
  • International: Up to 8 languages selectable


  • Mobile dew point measurement when servicing dryers


  • Display: 3.5″ touch screen
  • Measuring range: -80…+50 °Ctd
    -20…+70 °C
    0…100% RH
  • Accuracy: ± 0.5 °Ctd at
    -10…+50 °Ctd
    Typ. ± 2 °Ctd (further range)
  • Moisture parameters:
    g/m³, mg/m³, ppm V/V, g/kg,
    °Ctdatm, % RH
  • Pressure range: -1…50 bar standard
    -1…350 bar special version
  • Interface: USB interface
  • Data logger: 16 GB SD memory card
    (100 million values)
  • Power supply: Output voltage: 24 VDC ±
    Output current: 120 mA in
    continuous operation
  • Power supply: Internal rechargeable Li-Ion
    batteries, approx. 12 h
    continuous operation, 4 h
    charging time
  • Screw-in thread: G 1/2″ stainless steel
  • Ambient temperature:
    0…+50 °C
  • EMC: DIN EN 61326-1

Additional Informations

  • Standard measuring chamber : for compressed air up to 16 bar
  • High-pressure measuring chamber : for compressed air up to 350 bar
  • 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.
  • Measuring chamber stainless steel 1.4305, for dew point measurement : in gases air up to 350 bar

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