Honeywell 2MLF-RD4A 4-Channel RTD Input Module Brand New

Description

The Honeywell 2MLF-RD4A is a 4-channel RTD input module designed for high-precision temperature measurement in industrial automation systems. It forms part of the MasterLogic-200 (ML200) series, providing accurate and reliable monitoring of process temperatures in manufacturing, power generation, and energy control environments.

This module seamlessly interfaces with Pt100 and JPt100 RTD sensors, ensuring stable and repeatable measurements across a wide operating range. Engineered for durability, it withstands demanding conditions while maintaining accuracy, stability, and quick response times.

Functional Highlights

• High Accuracy: Delivers ±0.2% precision at 25°C, ensuring dependable temperature readings.
• Fast Response: Provides a conversion speed of 40 ms per channel, ideal for real-time control loops.
• Flexible Compatibility: Supports 2-wire, 3-wire, and 4-wire RTD connections for versatile field applications.
• Built-in Diagnostics: Includes disconnection detection, process alarms, and status LEDs for simplified maintenance.
• Industrial Durability: Operates reliably in environments up to 55°C and humidity levels of 95% RH (non-condensing).
• Compact Design: Lightweight and easily mounted on standard ML200 system bases.

Technical Specifications

Product Model: Honeywell 2MLF-RD4A Module Type: RTD Input Module Compatible System: MasterLogic-200 (ML200) Input Channels: 4 channels Supported RTD Types: Pt100, JPt100 Temperature Range (Pt100): -200°C to +850°C Temperature Range (JPt100): -200°C to +650°C Wiring Method: 3-wire standard (2-wire and 4-wire supported) Maximum Conversion Speed: 40 ms per channel (sequential) Accuracy: ±0.2% at 25°C / ±0.3% from 0°C to 55°C Output Format: Signed 16-bit binary Current Consumption: 450 mA @ 5 VDC Terminal Block: 18-point terminal block Operating Temperature: 0°C to +55°C Storage Temperature: -25°C to +70°C Humidity Range: 5% to 95% RH (non-condensing) Features: Sensor disconnection detection, process alarms, LED indicators, averaging and filtering options Weight: 0.15 kg

Typical Applications

The 2MLF-RD4A is widely used in:

• Process Control Systems: For accurate monitoring of reactor, furnace, and heat exchanger temperatures.
• Power Generation Plants: For turbine, boiler, and cooling system temperature control.
• Manufacturing Lines: For maintaining thermal balance in precision production processes.
• Energy and HVAC Systems: For real-time environmental and system temperature regulation.

Support & Maintenance

Honeywell provides extensive technical documentation and long-term product support for the 2MLF-RD4A. The module’s built-in diagnostics simplify troubleshooting, reducing downtime and maintenance costs. Its robust design ensures consistent performance over extended operational lifespans.

FAQ

Q1: What RTD types does the 2MLF-RD4A support? A1: It supports Pt100 and JPt100 sensors with 2-wire, 3-wire, and 4-wire configurations.

Q2: Can the module detect sensor disconnection? A2: Yes, it includes built-in disconnection detection and alarm functions for reliable fault monitoring.

Q3: How fast does the module update temperature readings? A3: The maximum conversion speed is 40 milliseconds per channel.

Q4: What control systems are compatible with this module? A4: The 2MLF-RD4A integrates seamlessly with Honeywell’s MasterLogic-200 series.

Q5: What is the operating temperature range? A5: The module operates from 0°C to +55°C and can be stored from -25°C to +70°C.