Overview
The Honeywell 2MLF-AC4H is a 4-channel analog input module from the MasterLogic-200 series. It is built for industrial automation and process control. Engineers can use it to acquire precise analog signals and monitor HART-compatible field devices remotely. Its robust construction and high resolution ensure reliable operation in harsh environments.
Technical Specifications
- Model Number: 2MLF-AC4H
- Series: MasterLogic-200
- Function: 4-channel Analog Input Module
- Input Signal Range:
- 4–20 mA (HART supported)
- 0–20 mA (HART not supported)
- Resolution: 1/64,000
- Accuracy: ±0.1% at 25°C
- Temperature Coefficient: ±0.25%
- Communication Protocol: HART (bidirectional over analog wiring)
- Digital Output Formats:
- Signed (–32,000 to +32,000)
- Precise
- Percentile (0–10,000)
- Monitoring Functions:
- A/D conversion
- HART variable monitoring
- Device information retrieval
- Disconnection Detection: Supported in 4–20 mA range
- Configuration Software: SoftMaster
- Power Consumption:
- ~340 mA @ 5 VDC (2MLF-AC4H-CC variant)
- Terminal Block: 18-point terminal connector
- Mounting Type: DIN rail or panel mount
- Operating Temperature: –10°C to +60°C
- Storage Temperature: –25°C to +70°C












