Emerson SE4304T01 DeltaV™ AO 4-20 mA HART CHARM

Overview

The Emerson SE4304T01 is an Analog Output CHARM module for the DeltaV™ Electronic Marshalling system. It provides a 4–20 mA analog output with integrated HART communication. The module drives control valves, actuators, and other analog field devices. It supports device diagnostics and control over a single pair of wires. SE4304T01 suits industries including oil & gas, chemical processing, and power generation. Its plug-and-play design ensures simple installation and reliable operation in harsh environments.

Technical Specifications

• Function: Analog Output with HART communication

• Signal Output: 4–20 mA analog signal, HART digital signal superimposed

• Output Accuracy: ±0.05% of span

• Load Resistance: Minimum 250 Ω for HART, Maximum 750 Ω

• Isolation: Galvanically isolated from system electronics, factory tested to 1000 VDC

• Power Consumption: CHARM Bus: +6.3 VDC @ ~30 mA, Field Circuit: +24 VDC @ ~20 mA

• Diagnostics: Output loop integrity, HART device status and alerts

• Installation: Pluggable into CHARM I/O card, keyed terminal block ensures correct placement

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

• Shock: 10 g, 11 ms half sine

• Vibration: 1 mm (2–13.2 Hz), 0.7 g

• Sensor Types: 4 to 20 mA with or without HART, 0 to 20 mA

• Nominal Signal Range: 4 to 20 mA (0 to 20 mA option)

• Full Signal Range: 0 to 24 mA

• Accuracy Over Temperature Range: 0.25% of span (0 to 60°C), 0.5% of span (-40 to 70°C)

• Resolution: 16-bit D/A converter

• Calibration: None required

• Available Field Power: 20 mA at 15 V DC supply into 750 Ω load

• Field Circuit Protection: 24 mA current limiting, field wiring disconnect

• CHARM Power Requirement: 42 mA max @ 24 V DC

• CHARM Heat Dissipation: 0.48 W

• HART Support: HART v7 pass-through for AMS, variable and device status available to control

• HART Data Update Rates: Faster than every second depending on communication and device type