RFQ

Digital RS485 HART Pressure Transmitter

  • NG # 04052-HW-microsensor-026

  • MF # MPM4730

High‑performance digital pressure transmitter with RS485 and HART communication protocols. Designed for precise pressure measurement with high accuracy, wide pressure range, and robust temperature compensation. Offers both analog and digital outputs for versatile industrial integration.

Manufactured By :
MICROSENSOR
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Overview

The MPM4730 pressure transmitter from MicroSensor is a compact and intelligent instrument that uses piezoresistive sensing and advanced electronics to deliver stable, accurate pressure readings. It supports multiple communication interfaces including RS485‑Modbus and HART, along with standard 4–20 mA output, making it suitable for industrial automation, process control, water treatment, petrochemical, and mechanical systems. The unit features digital temperature compensation and non‑linearity correction to ensure reliability across a broad environmental range. Certifications include CE, RoHS, CCS, and DNV for marine applications.

Specification

General

  • Model: MPM4730 Digital RS485 HART Pressure Transmitter
  • Communication Protocol: RS485‑Modbus and HART
  • Output Signals: 4–20 mA analog plus digital interfaces (RS485/HART)
  • Construction: Compact, lightweight, intelligent transmitter

Pressure Measurement

  • Pressure Range: ‑1 bar to 0.1 mbar up to 1000 bar (various selectable ranges)
  • Accuracy Options: ±0.1%FS, ±0.25%FS, ±0.5%FS
  • Overpressure Limit: ≤ 2× FS or 1100 bar (whichever is lower)

Performance

  • Long‑Term Stability: ±0.2%FS per year
  • Digital Temperature Compensation and Non‑Linearity Correction

Operating Conditions

  • Compensated Temperature Range: ‑10 °C to 70 °C
  • Application Temperature Range:
    • ‑30 °C to 80 °C (B1, B3 types)
    • ‑20 °C to 70 °C (B2 with PE, PVC cable)
    • ‑20 °C to 80 °C (B2 with PUR cable)
    • ‑20 °C to 60 °C (intrinsic safety type)
  • Storage Temperature:
    • ‑40 °C to 85 °C (B1)
    • ‑20 °C to 85 °C (B2, B3)

Certifications

  • CE, RoHS, CCS approvals
  • DNV approval for marine use

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