HONEYWELL MLF-RD04A Input Expansion Module

Specification

Feature

Input Points:4 points
Supported Sensor Types:PT100 (-200 to +850 °C); JPT100 (-200 to +650 °C)
Accuracy:±0.2% of full scale (at 25°C); ±0.3% of full scale (0 - 55°C)
Max. Conversion Speed:40ms/channel (sequential)
External Power Supply:5V DC, consuming about 450mA
Wiring Method:3 - wire standard (2 - wire and 4 - wire also supported)
Input Filtering:Digital filter with range 160 – 64,000 ms
Averaging Options:Time average (320 – 64,000 ms), counting average (2 – 64,000 counts), moving average (2 – 100 samples)
Scaling Range:PT100 (-200 to +850 °C); JPT100 (-200 to +640 °C)
Alarm Functions:Process alarm, input change rate alarm
Disconnection Detection:Based on 3 - wire configuration
Output Format:Signed 16 - bit binary
Terminal Block:18 - point
Operating Temperature:0 °C to +55 °C

High-Precision Temperature Sensing: ±0.2% at 25°C (±0.3% in 0–55°C) for PT100 and JPT100 sensors.
Versatile Sensor Support: Compatible with PT100 and JPT100 RTDs for wide industrial applications.
Fast Conversion: Up to 40ms per channel for real-time temperature monitoring.
Reliable Isolation: Photo-coupler insulation reduces electrical noise interference.
Flexible Signal Conditioning: Input filtering and averaging (time, count, moving) stabilize readings in noisy environments.
Built-In Alarm & Detection: Process and input-change alarms plus sensor disconnection detection.
Easy Wiring: 18-point terminal block for simple and reliable sensor connection.
Strong System Compatibility: Works with ML50 series; supports 7 connections (MLM "S") or 10 (MLC "H") for expansion.

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