Digital pressure gauge : P type

SKU P type

Possible areas of application

Digital pressure gauges are particularly suitable for both stationary and mobile measurement and display of pressure. They can be used as reference pressure gauges to simplify the checking, adjustment and calibration of other pressure measurement devices directly on site.

Example applications

Continuous or temporary checking of a wide variety of system pressures
Air density measurement in building shells for the detection and elimination of problem areas and avoiding structural damage
Monitoring the degree of soiling of filter units in ventilation or air conditioning systems
Recording pressure drops for the determination of leakage rates in leak tests
Measurement of barometric air pressure for the determination of weather conditions
Reference pressure gauge for calibration tasks


Tare / Zero-Function

User-defined zero point setting at the push of a button makes offset adjustment easy and eliminates the need for tedious mechanical adjustment. Single-point adjustment allows the linear characteristic curve to be shifted in positive or negative direction over the entire measuring range.


Multi-point adjustment can be performed if it is necessary to adjust the indicated values at different test points. Two-point adjustment is available for setting the zero point and slope of the measuring cell curve. Type P digital pressure gauges allow up to six offset values to be programmed in order to shift the characteristic curve to meet the most stringent customer expectations.

Selectable pressure units

Another feature is the large selection of pressure units. Up to 5 different units are possible – far more than any complicated dual-scale or multi-scale gauge can offer. The required display unit is selected directly on the digital pressure gauge and is clearly indicated on the display. No conversion necessary; the desired value can be read directly.


The large illuminated digital local display shows the measured pressure and indicates the current status of the digital pressure gauge, even under poor lighting conditions. This eliminates the difficult task of reading a dial gauge and avoiding parallax errors. Needle jitter due to vibration or pressure fluctuations is eliminated. Display damping or averaging can be configured directly using display filters. This ensures easy, tireless readout.

Min / Max Displays

Experience shows that excess pressure and pressure peaks significantly higher than normal operating pressure occur at some measuring points. Min / max displays and fast peak value measurement cycles in digital pressure gauges assist in system analysis and allow peak values to be determined. This allows incorrect readings and violations of range limits to be detected and helps avoid damage to pressure systems. Preventive service is often less expensive than repairing or replacing defective instruments.

PC connection and software

Many digital pressure gauges have a serial interface port to allow measurement values and stored data to be transferred directly to a PC and documented. An inexpensive measurement data acquisition system can easily be assembled with suitable software and an interface converter. Processes can be readily monitored and analysed using the recorded and visualised measurements and all data can be exported using standard programs such as Microsoft Excel. Remote control is also possible. Various software packages with extensive recording and display functions, logger and alarm evaluation as well as for calibration are available.

Analogue output

An electrical output signal enables remote display on a control console or in a control room as well as the connection of external recorders and indicating instruments.

Relay output

Digital pressure gauges allow limit contacts to be closed even at low pressures. There is no need for high actuation forces for magnetic spring or inductive contacts, which makes it easier to signal critical equipment conditions and perform supplementary control tasks.

Protection class

High IP protection classes (IP65 (front) / IP40) are available to minimise dust and water sensitivity. Rugged, impact-resistant digital pressure gauges are fitted with rubber caps for protection during transport and field use.

Battery operation / Auto-Off

Power is supplied by long-life batteries (ordinary or rechargeable). To increase battery operating time, a programmable Auto-Off function switches off the power to the instrument after prolonged inactivity. The electronics are designed for extremely low power consumption, which enables a battery life of significantly more than 8000 hours.


Accuracy (full scale) :   

0.5 %


0.2 %


0.05 %


0.025 %

Pressure ranges:

-1...1 bar to 0...2500 bar


1 mbar to 1 bar


0.1 mbar to 1 bar


0.1 mbar to 500 mbar


1 mbar to 100 mbar

Process connection

Medium temperature

0...50 °C


Datasheet P