Emerson KL3031X1-BA1 RTD / Resistance Input CHARM

Overview

The Emerson KL3031X1-BA1 is a high-precision RTD and resistance input CHARM module. It integrates seamlessly into Emerson’s DeltaV™ Electronic Marshalling system. The module measures temperature and resistance from RTDs and resistive sensors accurately. It supports multiple RTD types and resistance ranges for flexible industrial applications. Hot-swappable design allows safe replacement in non-hazardous areas. It ensures reliable operation in harsh process environments.

Technical Specifications

• Model: KL3031X1-BA1

• Function: RTD / Resistance Input

• Supported Sensors: Pt100, Pt1000, Ni100, Cu100, resistance 0–4000 Ω

• Channels: Single-channel CHARM

• Input Range: 0–4000 Ω

• Accuracy: ±0.1°C typical (sensor-dependent)

• Resolution: 16-bit A/D conversion

• Isolation: Galvanic isolation between field and system

• Diagnostics: Open circuit detection, sensor fault monitoring

• Hot-Swappable: Yes, only in non-hazardous areas

• Mounting: Plugs into CHARM baseplate terminal block

Power Specifications

• CHARM Bus Power: +6.3 VDC at 32 mA

• Field Circuit Power: +24 VDC at 10 mA

Environmental Specifications

• Operating Temperature: -40°C to +70°C

• Shock: 10 g half-sine wave for 11 ms

• Vibration: 1 mm peak-to-peak from 2–13.2 Hz; 0.7 g from 13.2–150 Hz

• Airborne Contaminants: ISA-S71.04 –1985 Class G3

• Relative Humidity: 5–95%, non-condensing