Endress+Hauser Deltabar PMD75-1AA7QE1RAAA

Differential Pressure Transmitter

Endress+Hauser Deltabar PMD75-1AA7QE1RAAA | Differential Pressure Transmitter

The Endress+Hauser PMD75-1AA7QE1RAAA is a high-performance differential pressure transmitter from the Deltabar S series, featuring a piezoresistive sensor with welded metallic membrane . It is designed for continuous measurement of pressure differences in liquids, vapors, and gases across all industries .

This digital transmitter is ideal for flow measurement (volume or mass flow) in conjunction with primary elements, level/volume/mass measurement in liquids, and differential pressure monitoring (e.g., of filters and pumps) .

Order Code Interpretation: PMD75-1AA7QE1RAAA

Based on Endress+Hauser's ordering structure for the Deltabar S PMD75 series :

Key Features & Benefits

• High Accuracy & Long-Term Stability: Reference accuracy of ±0.05% standard, with optional "Platinum" version up to ±0.035% . Long-term stability of 0.05% of URL/year .

• Wide Pressure Range & Overload Resistance: Pressure measuring range from 10 mbar to 250 bar (0.15 to 3750 psi) . Overload-resistant up to 420 bar (6300 psi), function-monitored .

• SIL2/3 Certified: Designed according to IEC 61508 for use in SIL2/3 safety applications (certified by TÜV SÜD) .

• HistoROM Data Management: Integrated HistoROM data module enables easy management of process and device parameters, supporting fast commissioning, maintenance, and diagnostics .

• Flexible Communication: Supports 4-20 mA HART (as configured), PROFIBUS PA, and FOUNDATION Fieldbus .

• Wide Temperature Range: Process temperature range of -40°C to +85°C (-40°F to +185°F) .

• Turn Down up to 100:1: Excellent turndown ratio for application flexibility .

• Modular Design: Easy replacement of sensor, display, or electronics for cost savings and simplified maintenance .

• Global Approvals: ATEX, FM, CSA, IECEx, NEPSI, NACE, marine approvals (GL/ABS), and WHG overfill prevention .

Technical Specifications

Applications

• Flow Measurement: Volume or mass flow measurement in conjunction with differential pressure sensors (orifice plates, pitot tubes) in gases, vapors, and liquids .

• Level Measurement: Level, volume, or mass measurement in liquids .

• Differential Pressure Monitoring: Monitoring of filters, pumps, and other equipment .

• High Temperature Applications: Process temperatures up to 400°C (752°F) possible with diaphragm seal mount .

Deltabar PMD75-1AA7QE1RAAA

• Best-in-Class Accuracy: 0.05% standard accuracy with excellent reproducibility and long-term stability .

• Maximum Safety: SIL2/3 certification and gas-tight feedthrough for highest safety in critical applications .

• Easy Commissioning: 3-key operation and menu-guided local display for simple and reliable commissioning .

• Seamless Integration: Compatible with HART, PROFIBUS PA, and FOUNDATION Fieldbus protocols .

• Reduced Maintenance: HistoROM data management and modular design enable fast diagnostics and easy replacement of components .

• Global Acceptance: Wide range of international approvals including ATEX, FM, CSA, NACE, and marine certifications .

Q&A

Q1: What is the accuracy of the Deltabar PMD75-1AA7QE1RAAA?

A: The Deltabar PMD75 offers a standard reference accuracy of ±0.05% . An optional "Platinum" version with up to ±0.035% accuracy is available for applications requiring higher precision. The device also features excellent long-term stability of 0.05% of URL per year .

Q2: Is the PMD75 suitable for use in safety instrumented systems?

A: Yes. The Deltabar PMD75 is SIL2/3 certified according to IEC 61508 (certified by TÜV SÜD), making it suitable for use in safety instrumented systems for critical applications such as overfill prevention and emergency shutdown .

Q3: What communication protocols does this version support?

A: The PMD75-1AA7QE1RAAA with "A" output code supports 4-20 mA HART communication . The Deltabar PMD75 series also offers options for PROFIBUS PA and FOUNDATION Fieldbus protocols for flexible system integration .