Scope of Application

The Deltabar PMD75 differential pressure transmitter with piezoresistive sensor and welded metal diaphragm is employed in all industries for continuous measurements in liquids, vapors, and gases. Thanks to the 3-key operation, simple and reliable commissioning and operation are possible. The integrated HistoROM data module simplifies the management of process and instrument parameters. Designed according to IEC 61508 for use in SIL2/3 safety applications.

For level, volume, or mass measurement in liquids, for differential pressure monitoring, and for flow measurement (volume or mass flow) in conjunction with primary elements in gases, vapors, and liquids.

- Process connections: threaded.
- Process temperature: -40 to +85 °C (-40 to +185 °F).
- Measurement range: 0.25 mbar to 40 bar (0.0036 to 600 psi).
- Accuracy: ± 0.05%, "Platinum" ± 0.035% (optional).
- International certificates for explosion protection, overfill protection (WHG), SIL, hygienic approvals, maritime approvals.

Benefits:

- High accuracy, reproducibility, and long-term stability.
- Optimal safety with gas-tight feedthrough with SIL2/3 capabilities, certified according to IEC 61508.
- Simple menu-driven commissioning via local display, 4-20 mA with HART, PROFIBUS PA, FOUNDATION Fieldbus.
- HistoROM data management concept for quick and easy commissioning, maintenance, and diagnostics.
- Modular concept for easy replacement of the display or electronics.
- Overload-resistant up to 420 bar / 42 MPa / 6300 psi, with function monitoring.
- Seamless and independent system integration (HART/PA/FF).

Pressure measurement principle