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  • suitable for pressure differences measuring in liquid media

  • simple handling

  • overpressure endurance

  • robust design

  • battery supply

  • signal damping

  • analogue output

DMU - digital pressure meter / digital manometr

Basic technical information of pressure transmitter

Nominal pressure range100 Pa1 kPa10 kPa100 kPa1000 kPa
Measuring pressure range±199,9 Pa±1,999 kPa±19,99 kPa±199,9 kPa±1999 kPa
Analogue output range±1,999 V±1,999 V±1,999 V±1,999 V±1,999 V
Overpressure max.1 kPa10 kPa40 kPa200 kPa2000 kPa
Burst pressure20 kPa100 kPa100 kPa300 kPa2000 kPa
Errormax. 1% ±2Pamax. 1%max. 1%max. 1%max. 1%
Display *100.01.00010.00100.01000
Static pressure for P and Tmax. 20 kPamax. 100 kPamax. 1 MPamax. 1 MPamax. 1 MPa
Common mode pressure errormax. 1%max. 1%max. 1%max. 1%max. 1%
Damping time constantcca 5s
Ambient temperature range0 ÷ +50°C (non condensing)
Storage temperature-5 ÷ 55°C
ProtectionIP 41
Supplybattery 9V
Current consumptionmax. 4mA
Battery lifemin. 50 hours of operation
Outside dimensions145 x 85 x 35 mm
Weight(with battery)290g, version T 500g

* valid for equipments calibrated in Pa or in kPa
EMC – dle ČSN EN 61326-1
At the customer´s wish it is possible to secure a metrological verification of the meters at an accredited Calibration Service Centre.

Instructions for use

  • Before connection of the gauge into the pressure circuit, it is necessary to see that the device or external pressure probe range might correspond to the pressure being measured. As for the difference gauge, the user shall assure that a pressure that is higher than the allowed non-destructive pressure corresponding to the nominal range should not unilaterally overload the measurement diaphragm.
  • This is the reason why a variant of the DMU-T gauge is manufactured, which is fitted with an integrated three-way apparatus with a ball valve. This valve will be opened during manipulation and connection of the pressure hoses (wing is parallel with the valve) and so the pressure difference will be minimized. After the high-pressure media delivery and stabilization, the gauge will be closed and there will be made measurements of the needed pressure differences. After completion of the measurement, the valve will be open again and afterwards the hoses will be disconnected from the pressure circuit. Negligence of this procedure may cause destruction of the measurement sensor!
  • It is also necessary to verify whether the measured medium does not attack the materials used, i.e. silicon, duralumin, brass, plastic material polyetherimide and fluorsilicone seal (the same is valid for the external probe as well). These requirements are met for air, nitrogen, water, ethylalcohol, oil, etc.
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