Smart Differential Pressure Transmitter MDM7000-LP Series

Overview

The Smart Differential Pressure Transmitter MDM7000-LP Series is an advanced solution designed for precision measurement in a wide range of industrial applications. Engineered with remote diaphragm seals, this transmitter delivers reliable performance even in the most demanding environments. Its robust design, combined with high accuracy and stability, makes it an ideal choice for industries such as oil and gas, chemical, pulp and paper, food and beverage, medical and health, and general process industries.

Key Features

High Accuracy

The MDM7000-LP series offers exceptional accuracy with a linear output accuracy of ±0.25% for Turn Down (TD) ≤5, and ±(0.025%×0.045TD)% for TD > 5. The square root output accuracy is 1.5 times the linear output, ensuring precise measurements across a variety of conditions.

Wide Operating Range

This transmitter supports a pressure range from 0.4 bar to 2.5 bar, with long-term stability of ±0.2% Span over five years, making it reliable for long-term monitoring.

Temperature and Environmental Adaptability

The MDM7000-LP is designed to operate effectively across a wide temperature range, from -40℃ to 85℃ without an LCD display, and -20℃ to 70℃ with an LCD display. It also functions reliably in humidity levels ranging from 5% RH to 100% RH at 40℃.

EMC Compliance

The transmitter meets rigorous EMC standards, providing resistance to various interferences, including radiated and conducted interference, electrostatic discharge, and radio-frequency electromagnetic fields.

Flexible Output Signal and Power Supply

The device delivers a 4mA to 20mA DC output signal with HART communication protocol. It operates on a supply voltage ranging from 16.5V to 55V DC, with a power consumption of up to 500mW at 24V DC.

Diaphragm Seal and Filling Oil Options

Filling Oil Types

The MDM7000-LP series can be customized with different types of filling oils to meet specific temperature requirements:

• Normal Temperature Silicone Oil: Suitable for medium temperatures between -40℃ and 205℃.
• Inert Filling Oil: Ideal for medium temperatures from -45℃ to 160℃.
• High-Temperature Silicone Oil: Designed for medium temperatures ranging from 0℃ to 315℃.
• Low-Temperature Silicone Oil: Suitable for medium temperatures between -55℃ and 200℃.

Diaphragm Seal Material Options

To ensure compatibility with various process conditions, the transmitter can be equipped with diaphragms made from materials such as 316L Stainless Steel, Hastelloy C-276, Tantalum, Titanium, and Monel.

Hazardous Area Certifications

The MDM7000-LP is certified for use in hazardous areas according to multiple international standards:

• China: Ex db IIC T6 Gb, Ex ia IIC T4 Ga, Ex tb IIIC T85℃ Db.
• ATEX: Ex ia IIC T4 Ga, II 2G Ex db IIC T6 Gb, II 2D Ex tb IIIC T80℃ Db.
• IECEx: Ex ia IIC T4 Ga, Ex db IIC T6 Gb, Ex tb IIIC T80℃ Db.
• CSA: Certified for Class I, Division 1, Group A, B, C, and D T6, among other classifications.

Customization and Ordering Information

Mounting and Installation

The MDM7000-LP series supports a wide range of flange standards, including HG/T-20592, EN1092-1, and ANSI/ASME B16.5, with various sealing faces available such as Raised Face (RF), Female Face (FM), Male Face (M), and Ring Joint Face (RJ).

Additional Customization Options

Customers can tailor the MDM7000-LP to their specific needs with options for fill oils, calibration ranges, damping time settings, fault alarm settings, and more. Diaphragm and capillary configurations can also be adjusted to suit particular applications.

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