Piezoresistive Differential Pressure Transmitter MDM491 Series

Overview

The MDM491 Series Piezoresistive Differential Pressure Transmitter is engineered for precise measurement in a range of industrial applications, including petroleum, chemical, electricity, and hydrology sectors. Featuring a robust welded structure and fully-sealed design, this transmitter ensures reliable performance with enhanced temperature compensation and adjustable span and zero settings externally for plug-connected products.

Applications

Designed to meet the demanding needs of various industries, the MDM491 is perfectly suited for:

• Petroleum Industry: Ensuring accurate pressure measurements in exploration and refining processes.
• Chemical Industry: Monitoring and controlling processes with precision.
• Electricity Industry: Maintaining system efficiencies and safety.
• Hydrology: Tracking and managing water pressures in a variety of settings.

Key Features

• High Accuracy: The device maintains an accuracy of ±0.5% FS, ensuring reliable measurements.
• Durable Build: Made with stainless steel components, it offers long-term stability and resistance to harsh environments.
• Temperature Compensation: Includes automatic adjustments to maintain accuracy under varying temperature conditions.
• Adjustability: Features external adjustments for zero and span on plug-connected models, providing flexibility and ease of use.

Output and Electrical Configuration

The MDM491 transmitter supports multiple output signals and electrical configurations, adapting to various industrial requirements:

• Output Signal Variability: Options include 4mA to 20mA DC, 0mA to 10mA DC, and voltage outputs from 0V to 10V DC.
• Power Requirements: Efficient operation within a 15V to 28V DC range.
• Thermal Drift: Minimized impact with ±0.75% FS/℃ for pressures ≤2 bar and ±0.5% FS/℃ for pressures >2 bar.

Material Specifications

• Wetted Parts: Constructed from SS 316L for the isolated diaphragm and SS 304/SS 316L for the pressure port, ensuring compatibility with a wide range of fluids.
• Non-wetted Parts: The housing and cables are also made from high-quality stainless steel and durable cable materials (PE, PUR, PVC), providing additional reliability and longevity.

Ordering Information

Customization is available to meet specific operational requirements:

• Measurement Ranges: From 0 mbar up to 350 mbar and extending to 20 bar.
• Connection Options: Includes both Hirschmann 4-pin plug and various cable connections.
• Process Connections: Multiple configurations to suit different installation needs.

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