SS4303T01 HART CHARM 24V DC 24-bit DeltaV Electronic Marshalling
Introduction:
The Emerson SS4303T01 is an LS AI 4-20 mA HART CHARM for DeltaV SIS Electronic Marshalling. This Logic Solver Characterization Module provides signal characterization and isolation to the redundant communication bus. The SS4303T01 features a 24-bit A/D converter with 1000V DC galvanic isolation.
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Product Overview
The Emerson SS4303T01 belongs to the DeltaV SIS Electronic Marshalling family. This LS CHARM eliminates the need to partition I/O wiring by signal type. The SS4303T01 connects field signal multi-cores in an orderly fashion without cross-wiring. You install the appropriate CHARM to complete the field circuit. The signal is then ready for use by the CSLS. The SS4303T01 acts as a circuit protection device and field wiring disconnect.
Technical Specifications
The Emerson SS4303T01 delivers reliable analog input characterization for safety instrumented systems. All parameters follow the official datasheet.
General Specifications
Product type: LS AI 4-20 mA HART CHARM
System: DeltaV SIS Electronic Marshalling
Sensor type: Voltage devices (multiple ranges supported)
HART communication: Yes
Input Specifications
Full scale signal range: See table below for voltage ranges
Input impedance: 10 MΩ
Repeatability: 0.05 percent of span
Resolution: 24-bit A/D converter
Common mode rejection: 90 dB at 50/60 Hz
Accuracy & Drift by Sensor Type
| Sensor Type | Sensor Range | 25° Reference Accuracy | Temperature Drift | Nominal Resolution |
|---|---|---|---|---|
| 0 to 5 V | 0 to 5 V | ± 0.005 V | ± 0.0005 V/°C | 0.00008 V |
| 0 to 10 V | 0 to 10 V | ± 0.010 V | ± 0.001 V/°C | 0.00015 V |
| 1 to 5 V | 1 to 5 V | ± 0.005 V | ± 0.0005 V/°C | 0.00006 V |
| 1 V | -1 to +1 V | ± 0.0025 V | ± 0.0002 V/°C | 0.00003 V |
| 5 V | -5 to +5 V | ± 0.005 V | ± 0.0005 V/°C | 0.00015 V |
| 10 V | -10 to +10 V | ± 0.010 V | ± 0.001 V/°C | 0.00030 V |
Isolation & Protection
Isolation: Input channel galvanically isolated and factory tested to 1000 V DC
Surge protection: Meets industry standards for EMC
Current limiting: Signals are inherently current limited
Fuse protection: Under extreme overvoltage, CHARM acts as a fuse
Field wiring disconnect: Partial ejection to locked position
Power & Heat
CHARM power requirement: 18 mA maximum at 24 V DC
CHARM heat dissipation: 0.40 Watts
Calibration: None required
Physical & Installation Features
Terminal block: Removable with physical latch for LS CHARM
Base plate: Supports 12 LS CHARMs with interleaving power and bus connectors
Hot swap: LS CHARMs can be added online and auto-sensed
Locking mechanism: Closing the latch locks CHARM in place
Installation Guide
Follow these steps to install the Emerson SS4303T01 correctly.
Mount the CHARM Base plate on a vertical DIN rail.
Connect base plates together using interleaving power and bus connectors.
Install the CHARM Smart Logic Solver carrier at the top of the DIN rail.
Insert the SS4303T01 into any available base plate position.
Push the LS CHARM fully until the latch locks in place.
Connect field wiring to the removable terminal block.
Apply 24 V DC power and verify auto-sensing online detection.
Packing List
This package for the Emerson SS4303T01 includes the following items.
Emerson SS4303T01 LS AI 4-20 mA HART CHARM (one unit)
Removable terminal block for field wiring
Product documentation and specification sheet
Anti-static protective bag
Frequently Asked Questions (FAQ)
1. What is a CHARM in DeltaV SIS Electronic Marshalling?
A CHARM is a Logic Solver Characterization Module. The SS4303T01 provides basic characterization and isolation for each field signal to the redundant communication bus.
2. Can the SS4303T01 be installed while the system is running?
Yes, LS CHARMs like the SS4303T01 can be added to any existing base plate position. They are auto-sensed online without system shutdown.
3. What is the input impedance of the Emerson SS4303T01?
The SS4303T01 has an input impedance of 10 MΩ. This high impedance minimizes loading on field voltage devices.
4. Does the SS4303T01 require calibration?
No calibration is required for the Emerson SS4303T01. The module uses a 24-bit A/D converter with factory-tested isolation at 1000 V DC.
5. What voltage ranges does the SS4303T01 support?
The SS4303T01 supports multiple voltage ranges including 0-5V, 0-10V, 1-5V, ±1V, ±5V, and ±10V. Refer to the accuracy table for specific specifications.