I/O modules

Overview

The Honeywell MU-GAIH92 is a High Level Analog Input (HLAI) module designed to interface with up to 16 high-level DC signals.
It provides galvanic isolation, enabling safe signal transmission between hazardous and safe areas.
The module supports conventional 2-wire and 3-wire transmitters, making it suitable for industrial process applications.

Key Features

Compatibility

• Works with 2-wire and 3-wire 4-20 mA transmitters.
• Supports auxiliary devices via a 50-pin auxiliary connector.

Signal Processing

• Provides floating DC power to energize transmitters in hazardous areas.
• Converts 4-20 mA input to 1-5 VDC output for safe area IOPs.

Galvanic Isolation

• Ensures 250 VAC isolation between hazardous and safe sides.
• Prevents electrical interference and ensures safe signal transmission.

Connectors & Indicators

• Two 50-pin connectors for redundant IOPs (non-redundant also supported).
• One 50-pin auxiliary connector for 4-20 mA signal output.
• Primary IOP Active Indicator: Green light shows active primary IOP.
• Galvanic Isolation Module Power Indicator: Confirms power applied.

Field Device Compatibility

• Maximum open circuit voltage: 28V.
• Minimum voltage at 20 mA: 15V.

Specifications

Electrical

• Input Signal: 4-20 mA
• Output Signal: 1-5 VDC
• Maximum Power Consumption: 1.2 A at 24 VDC (28.8 W)
• Power Dissipation: 20.8 W
• Safety Limits: Maximum Voltage 28V, Maximum Current 93 mA, Resistance 300 Ω

Environmental & Isolation

• Isolation Voltage: 250 VAC
• Operating Environment: Hazardous and safe area applications

Auxiliary Output

• 1-5 VDC PV signals available at auxiliary connector
• Requires low-impedance (<250 Ω) recording or monitoring system

Part Numbers

• Non-CE Compliant: 51304748-300
• CE Compliant: 51304748-325

Additional Components

• Marshalling Panel: Use MU-GMAR52 for screw terminal access
• Connection Cable: Requires MU-KFTAxx (length specified by “xx”)

The MU-GAIH92 HLAI module ensures accurate, safe, and reliable analog signal processing in industrial automation environments.

Details