Cerabar S PMC71

Summary

Product identification

The Cerabar S PMC71, PMP71, and PMP75 are pressure transmitters featuring ceramic and metallic measuring cells. They support various communication protocols including 1-5 V DC, HART, PROFIBUS PA, and FOUNDATION Fieldbus.

Applications

These devices are designed for:

• Absolute and gauge pressure measurement in gases, steams, and liquids across process engineering and measurement technology.
• Level, volume, and mass measurements in liquids.
• High process temperatures: up to 150 °C (302 °F) without diaphragm seal, up to 400 °C (752 °F) with diaphragm seals.
• High pressures up to 700 bar (10,500 psi).
• Low-energy operation with voltage output for solar-powered control units.

Performance Characteristics

Ceramic Process Membrane (Ceraphire®)

• Advantages: Oil-free, robust, chemical and mechanical durability, suitable for vacuums, secondary containment.
• Process Temperature: Up to 150 °C (302 °F).
• Overload Resistance: Guaranteed up to 40 times the nominal pressure.

Metallic Process Membrane

• PMP71: Suitable for process pressures up to 700 bar (10,500 psi). High long-term stability. Guaranteed overload resistance up to 4 times the nominal pressure.
• PMP75: Suitable for process pressures up to 400 bar (6,000 psi) and extreme process temperatures. High long-term stability. Guaranteed overload resistance up to 4 times the nominal pressure.
• Overload Resistance: Guaranteed up to 4 times the nominal pressure.

Measuring Ranges (Examples)

• PMC71 (Ceramic, Gauge Pressure):
  • 100 mbar (1.5 psi) to +0.1 bar (+1.5 psi)
  • 40 bar (600 psi) to +40 bar (+600 psi)
• PMC71 (Ceramic, Absolute Pressure):
  • 0 to +0.1 barabs (+1.5 psiabs)
  • 0 to +40 barabs (+600 psiabs)
• PMP71/PMP75 (Metallic, Gauge Pressure):
  • –0.4 (–6 psi) to +0.4 (+6 psi)
  • –1 (–15 psi) to +700 (+10,500 psi)
• PMP71/PMP75 (Metallic, Absolute Pressure):
  • 0 to +0.4 (+6 psiabs)
  • 0 to +700 (+10,500 psiabs)

Note: Turn down ratios greater than 100:1 are available on request or can be set on the device.

Output

• Signal Types:
  • 4 to 20 mA with HART (2-wire)
  • 1-5 V DC (3-wire)
  • PROFIBUS PA (2-wire)
  • FOUNDATION Fieldbus (2-wire)
• Signal Range:
  • 4 to 20 mA: 3.8 mA to 20.5 mA
  • 1-5 V DC: 0.95 V to 5.125 V
• Signal on Alarm: Configurable to Max/Min alarm levels as per NAMUR NE43 or other options depending on the protocol.
• Damping: Controllable from 0 to 999 seconds via local display, handheld terminal, PC, or DIP switch. Factory setting is 2 seconds.

Electrical Supply

• 4 to 20 mA HART:
  • Non-hazardous areas: 11.5 to 45 V DC
  • Intrinsically safe: 11.5 to 30 V DC
• 1-5 V DC:
  • Non-hazardous area: 9 to 35 V DC
  • Ex-d: 9 to 35 V DC
• PROFIBUS PA / FOUNDATION Fieldbus:
  • Non-hazardous areas: 9 to 32 V DC
  • Ex ia (FISCO): Ui=17.5 V DC
  • Ex ia (Point-to-point): Ui = 24 V DC
• Current Consumption:
  • PROFIBUS PA: 13 mA ±1 mA
  • FOUNDATION Fieldbus: 15.5 mA ±1 mA

Mechanical and Hydraulic

• Process Connections: Various options available for PMC71, PMP71, and PMP75, including internal and flush process membranes, and hygienic connections.
• Weight: Not specified in the extract.
• Materials: Information on materials in contact and not in contact with the process is available.
• Fill Fluid: Available options include Silicone oil and Inert oil.

Environment

• Ambient Temperature Range: Not explicitly detailed in the extract, but noted as a factor for Wireless HART minimum operating voltage.
• Storage Temperature Range: Not specified in the extract.
• Degree of Protection: Mentioned in relation to cable entries (e.g., IP67 for M12 connectors).
• Vibration Resistance: Not specified in the extract.

Certificates and Approvals

The device complies with various standards and carries approvals including:

• CE mark
• RoHS
• RCM-Tick marking
• Ex approvals (details in separate documentation)
• EAC conformity
• Functional safety SIL/ IEC 61508 Declaration of Conformity (optional)
• MID Parts Certificate

---

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror