Deltabar S PMD78B

Summary

Product identification

• Product Name: Deltabar PMD78B
• Type: Digital differential pressure transmitter with metallic process membrane
• Application: Differential pressure, level, and flow measurement in liquids or gases.

Operating limits

• Pressure measuring ranges: up to 40 bar (600 psi)
• Process temperatures: up to 400 °C (752 °F) with diaphragm seal
• Static pressure: up to 160 bar (2 400 psi)
• Accuracy: up to ±0.075%

Feed water

• Measured variable: Differential pressure

Product water

• Not applicable for this product.

Electrical

• Output signal:
  • 4 to 20 mA with HART communication protocol (2-wire)
  • PROFINET with Ethernet-APL: 10BASE-T1L, 2-wire, 10 Mbit/s
• Supply voltage:
  • Analog/HART (Ex d, Ex e, non-Ex): 10.5 to 35 VDC
  • Analog/HART (Ex i): 10.5 to 30 VDC
  • PROFINET with Ethernet-APL: 9.6 to 15 VDC (540 mW)
• Signal on alarm: According to NAMUR recommendation NE 43 for HART; according to "Application layer protocol for decentralized periphery" Version 2.4 for PROFINET.

Mechanical / hydraulic

• Measuring principle: Differential pressure measuring cell with metallic membrane, utilizing fill fluid and a resistance bridge (semiconductor technology).
• Diaphragm seal options: Single-sided or double-sided with temperature isolators and/or capillaries.
• Materials in contact with process: See the official PDF for exact tabulated values.
• Weight: See the official PDF for exact tabulated values.
• Dimensions: See the official PDF for exact tabulated values.

---

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