Pressure Switch MPM4881 Series

Overview

The Pressure Switch MPM4881 Series is a state-of-the-art digital meter that integrates pressure measurement, display, transmission, and control functions in one compact device. Built with advanced ARM processing technology, this pressure switch ensures precise measurements, quick response times, and reliable control of multiple relays. Designed for long-distance pressure measurement and control, it is ideal for applications such as automatic pressure detection, motion control, and water level alarms in various equipment.

Key Features

• Real-time Pressure Display: The MPM4881 Series provides accurate, real-time pressure readings in Bar or MPa units, ensuring precise monitoring at all times.
• High-Visibility Display: Equipped with a 14-segment LED display, the device allows for easy reading of pressure levels even in challenging environments.
• User-Friendly Operation: With button programming, users can easily configure the device according to their specific needs, making operation simple and straightforward.
• Independent Relay Control: The device supports up to 5 independent relays, offering versatile control with time-delay functionality for complex operations.
• Versatile Analog Output: The MPM4881 Series offers switchable analog output options, providing either current or voltage outputs to meet diverse application requirements.
• Max Pressure Recording: During operation, the device can record the maximum pressure encountered, which can be easily reset using a dedicated button.
• Flexible Mounting Options: The device supports multiple mounting methods, including back, rail, cover, and joint mounting, allowing for easy integration into various setups.
• Enhanced Protection: Designed with hardware protection against incorrect operations, the device ensures long-term reliability and safety.
• Intrinsically Safe: Compliant with GB3836.1 and GB3836.4 standards, the MPM4881 Series carries explosion-proof certification, making it suitable for hazardous environments.
• Modbus Communication: The device supports Modbus communication, enabling seamless integration into automated systems and networks.

Technical Specifications

Input

• Power Supply:
  • Non-Intrinsically Safe: 220V ±44V AC / 22V~32V DC
  • Intrinsically Safe: 22V~28V DC (Supplied by Safety Barrier)
• Pressure Range: 0kPa to 10kPa, up to 60MPa
• Overpressure Limit: 1.5 times the Full Scale (FS)

Output

• Accuracy: ≤ ±0.25%FS or ≤ ±0.5%FS
• Repeatability: ≤ ±0.2%FS
• Display: 4-digit, 0.56-inch, 14-segment LED display with a 200ms refresh rate
• Temperature Drift: ≤ ±0.03%FS/°C (for zero/span)
• Analog Output:
  • Current Version: 4mA~20mA DC, with a load resistance ≤ 560Ω
  • Voltage Version: 0V~10V DC, with a load resistance ≥ 10kΩ

Switch Output

• Relay Control: 5 relays with normally open or closed contact options
• Voltage Supply: ≤ 277V AC or ≤ 30V DC
• Current Supply: ≤ 3A
• Response Time: < 1ms
• Switch Point Setting: Adjustable from 1.5%FS to 99%FS
• Return Difference Setting: Adjustable from 1%FS to 10%FS
• Relay Life:
  • Minimum: ≥ 10,000,000 operations/load
  • Maximum: ≥ 100,000 operations/load
• Switch Delay: Adjustable from 0s to 99s

Environmental Conditions

• Operating Temperature: -25°C to 65°C (-13°F to 149°F)
• Relative Humidity: 0% to 85%
• Storage Temperature: -40°C to 70°C (-40°F to 158°F)
• Media Temperature: -20°C to 80°C (-4°F to 176°F)
• Electromagnetic Compatibility: Complies with GB/T 17626.2/3/4-2006 standards
• Shock Resistance: ≤ 5g from 10Hz to 500Hz (IEC 60068-2-6-2007)
• Impact Resistance: ≤ 10g for 11ms (IEC 60068-2-27-2008)
• Protection Level: IP65

Installation and Mounting

The MPM4881 Series Pressure Switch offers multiple installation options to suit various industrial environments. It can be mounted on a 35mm electric rail, in an electrical control cabinet panel, or through back, cover, or joint mounting. The flexibility in mounting options ensures that the device can be easily integrated into your existing setup without significant modifications.

Ordering Information

When purchasing the Pressure Switch MPM4881 Series, consider the following options to customize the product to your specific needs:

• Pressure Range: Available from 0kPa to 10kPa up to 60MPa.
• Power Supply:
  • 220V AC for non-intrinsically safe applications.
  • 22V~32V DC for non-intrinsically safe applications.
  • 22V~28V DC for intrinsically safe applications (supplied by Safety Barrier).
• Output Configuration:
  • 5-relay + analog (4mA~20mA).
  • 5-relay + analog (0V~10V).
  • 5-relay + analog (4mA20mA / 0V10V dual-use).
• Process Connection:
  • M20×1.5 male with face-type seal.
  • G1/2 male.
  • G1/4 female.
  • M20×1.5 male with waterline seal.
• Safety Certification: Intrinsically Safe ExibIIAT6 Gb.
• Measurement Type: Choose between Gauge, Absolute, or Sealed Gauge.

For customized options, including specific process connection threads, please contact us to discuss your requirements.

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