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ASF Pressure Tester Type VDM 300 R

Digital pressure gauge with a measuring range -1000 to 2000 mbar relative

Article No.: 4200 7014


  • For testing of switching values of leak detection equipment or other pressure/vacuum devices.
  • The measured values can be displayed in: bar , mbar , kPa , mmHg , psi
  • To measure the switching values of the leak detector a suitable hose must be plugged on the corresponding input (+ = positive pressure, or - = negative pressure), depending on the pressure/vacuum ratio. The other end of the hose is plugged onto the measuring port of the leak detector.
  • Display: 2 four-digit LCD displays
  • Power-Off-Function: The unit turns off automatically after a set delay time.
  • Controls: Membrane keyboard
  • Interface: Can be connected to a PC with an optional interface converter (accessory)

The VDM 300 R must not be used in hazardous areas!


Products images

VDM300Digital pressure gauge with a measuring range -1000 to 2000 mbar relative.

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Operating Conditions

  • The VDM 300 R is not suitable for leak detection systems with an operating pressure of more than 2 bar.
  • The leak detectors or pressure devices must feature the appropriate connections.
  • The user's manual of the VDM 300 R must be observed.
  • The tester is supplied in a carrying case. Content is the VDM 300 R, about 30 cm sampling line, battery, and lanyard for the tester.
  • The leak test scoreboard and functional checks listed in the technical descriptions are to be observed.


Mounting examples

Please click on the picture for a larger view!



Technical Data


-1000 bis 2000 mbar relative


max. 4000 mbar rel.


1 mbar


+/- 0,2% FS (linearity and hysteresis)
+/- 0,2% FS (termperature-influence of 0-50o)


Piezoresistive relative pressure sensor


2-pin metal connector, nickel plated brass for connecting a pressure hose Ø 6x1mm (4 mm inside)

Power supply

9V battery or optional power supply available as accessory


IP 65

Ambient temp.:

0 to 50o C