Smart Differential Pressure Transmitter MDM7000DP Series

Product Overview

The Smart Differential Pressure Transmitter MDM7000DP Series is a cutting-edge solution designed for accurate and reliable differential pressure measurement. This transmitter is ideal for a variety of industries including oil and gas, food processing, pulp and paper, and the chemical industry. Its robust design ensures long-term stability and precision under varying environmental conditions.

Operating Conditions

Operating Temperature:

• Without LCD: -40℃ to 85℃
• With LCD: -20℃ to 70℃

Storage Temperature:

• Without LCD: -40℃ to 100℃
• With LCD: -40℃ to 85℃

Medium Temperature:

• Silicone Oil Filled: -40℃ to 105℃
• Inert Oil Filled: -45℃ to 160℃
• Low Temperature Silicone Oil: -55℃ to 200℃

Operating Humidity: 5%RH to 100%RH at 40℃

Environmental Conditions

Accuracy (Linear Output):

• TD ≤ 5:
  • 60mbar: ±0.075%
  • 0.4bar, 2.5bar, 10bar, 30bar: ±0.05% or ±0.075%
• TD > 5:
  • 60mbar: ±(0.001+0.0148TD)%
  • 0.4bar, 2.5bar, 10bar, 30bar: ±(0.0025+0.0095TD)%

Accuracy (Square Root Output): 1.5 times linear output accuracy Total Performance: Based on combined errors of indoor temperature accuracy, ambient temperature effects, and static pressure effects.

Nominal Range and Overload

Ranges:

• 60mbar: 2mbar to 60mbar
• 0.4bar: 4mbar to 0.4bar
• 2.5bar: 25mbar to 2.5bar
• 10bar: 0.1bar to 10bar
• 30bar: 0.3bar to 30bar

One-sided High Pressure Overload: 420bar One-sided Low Pressure Overload: 250bar

Specifications

Accuracy:

• ±0.05%, ±0.075% URL
• Long-term stability: ±0.1% Span/5 years

Ambient Temperature Effects:

• At 60mbar: (0.1+0.05TD)% SPAN per 10℃
• Other ranges: (0.075+0.0375TD)% SPAN per 10℃

Voltage Effects: Zero point and range change ≤ ±0.005% SPAN/V Mounting Position Effects: Less than 4mbar, correctable by reset Vibration Effects: ＜0.1% SPAN Output Signal: 4mA to 20mA DC, HART IP Rating: IP67 Weight: About 4kg (without mounting bracket and process connection accessories)

Power Supply and Load Requirements

Voltage:

• HART: 16.5V to 55V DC
• Intrinsically Safe HART: 18.5V to 28V DC

Load Resistance:

• Operation mode: 0Ω to 2119Ω
• HART communication: 250Ω to 600Ω

Transmission Distance: <1000m Power Consumption: ≤500mW@24V DC, 20.8mA

Time Index

Damping Time Constant: 0s to 100s configurable Sensor Module Damping Time: ≤0.2s Turn-on Time: ≤6s Factory Reset Time: ≤31s

EMC Effects

Standards: GB/T 9254.1/CISPR 32, IEC61000 series Performance Levels: A (normal performance within technical specifications)

Static Pressure Effects

Ranges and Effects:

• ≤0.1bar: δ ≤ ±0.5% F.S./100bar
• 0.1bar to 0.4bar: δ ≤ ±0.1% F.S./100bar
• 2.5bar to 10bar: δ ≤ ±0.075% F.S./100bar
• 30bar to 100bar: δ ≤ ±0.15% F.S./100bar

Hazardous Area Approvals

PCEC: Ex db IIC T6 Gb, Ex ia IIC T4 Ga NEPSI: Ex tb III C T85℃ ATEX: Ex ia IIC T4 Ga, Ex db IIC T6 Gb, Ex tb IIIC T80℃ Db IECEX: Ex ia IIC T4 Ga, Ex db IIC T6 Gb, Ex tb IIIC T80℃ Db CSA: Class I, II, III, Division 1, Group A, B, C, D, T6

Ordering Information

Application of Hazardous Area:

• Various approvals (e.g., China, CSA, ATEX, IECEx) and non-hazardous area options

Output Signal:

• 4mA to 20mA DC, HART

Case Material:

• Stainless Steel or Aluminum Alloy

Waterproof/Explosion-proof Connector:

• Various specifications and materials

Display:

• Without LCD or with LCD (-20℃ to 70℃)

Range and Overload Specifications:

• Multiple ranges from 60mbar to 30bar

Options:

• Mounting brackets, process connections, output signal mode, verification report, damping time setting, fault alarm setting, product certificate, identification plate, fill oil types, flange block fasteners, and more.

Miscellaneous Options

**High-accuracy Calibration, Language, Delivery Service, Extended Warranty, Lithium Battery, Oil-free Treatment, Diaphragm with Gold Plating, and more. Example Model Configuration:

• Example: MDM7000-DP-0HS1L-1A1S6H/G1-[CAL: 0-50mbar]

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