Differential pressure transmitter MDM7000-DGP/DAP

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Product overview
The MDM7000-DGP/DAP intelligent differential-mounted gauge / absolute pressure transmitter is engineered for demanding process-industry applications. It uses monocrystalline silicon piezoresistive technology to provide stable, repeatable measurements. The transmitter offers high-accuracy options, a large turndown ratio and converts pressure inputs to a 4 mA~20 mA DC analogue output with HART for remote configuration and monitoring. Suitable for level, density, pressure and flow measurement of liquids, gases or vapours, the device includes a high-performance EMC protection circuit to ensure strong anti-interference capability and long-term stability for industrial environments.

Advantages

• MDM7000-DGP accuracy options: ±0.075%, ±0.1%, ±0.2%
• MDM7000-DAP accuracy options: ±0.1%, ±0.2%
• MDM7000-DGP range: 60 mbar ~ 400 bar
• MDM7000-DAP range: 0.4 bar ~ 100 bar
• Long-term stability: ±0.2% SPAN / 5 years (overview) and ±0.1% SPAN / 10 years (detailed)
• Maximum turndown ratio: 100:1
• High-performance EMC protection and circuit module for strong anti-interference capability

Features
DGP accuracy: ±0.075%, ±0.1%, ±0.2%
DAP accuracy: ±0.1%, ±0.2%
DGP range: 60 mbar ~ 400 bar (see specifications for details)
DAP range: 0.4 bar ~ 100 bar (see specifications for details)
Turndown ratio: 100:1
Long-term stability: ±0.1% Span / 10 years
DGP ambient temperature effect: ±(0.075 + 0.0375 TD) % per 10°C of span
DAP ambient temperature effect: ±(0.085 + 0.0625 TD) % per 10°C of span
Supply voltage effects: with power supply 18.3 V ~ 44 V DC, zero and span change ≤ ±0.005% / V
Mounting position effect: < 4 mbar at any position (correctable by PV = 0 reset)
Vibration effects: ≤ 0.1% SPAN (per GB/T18271.3 / IEC61298-3)
Output signal: 4 mA ~ 20 mA DC, HART
Ingress protection: IP67 / IP66
Weight: approx. 4 kg (without mounting bracket and process-connection accessories)

Industry applications

• Petroleum / Oil & Gas
• Chemical industry
• Power generation
• Steel industry
• Cement plants
• Pulp & Paper
• Food processing
• Marine
• Water conservancy / hydraulic engineering

Technical specifications

• Model / Series: MDM7000-DGP / MDM7000-DAP
• Technology: Monocrystalline silicon piezoresistive pressure sensor
• Accuracy options: DGP ±0.075%, ±0.1%, ±0.2%; DAP ±0.1%, ±0.2%
• Measurement ranges: DGP 60 mbar ~ 400 bar; DAP 0.4 bar ~ 100 bar
• Turndown ratio: 100:1
• Long-term stability: ±0.2% SPAN / 5 years (overview); ±0.1% SPAN / 10 years (specification)
• Ambient temperature effect formulas: DGP ±(0.075 + 0.0375 TD)% / 10°C of span; DAP ±(0.085 + 0.0625 TD)% / 10°C of span
• Supply voltage influence: within 18.3 V ~ 44 V DC, zero/span change ≤ ±0.005% / V
• Mounting position effect: < 4 mbar (correctable by PV = 0 reset)
• Vibration: ≤ 0.1% SPAN per relevant standards
• Output: 4 mA ~ 20 mA DC, HART communication
• Ingress protection: IP67 / IP66
• Weight: approx. 4 kg (without mounting bracket and process-connection accessories)