Description
Key Technical Parameters
| Parameter | Specification |
|---|---|
| Brand | GE / Emerson |
| Model | IS200DRTDH1A |
| RTD Inputs | 8 channels, 3-wire or 4-wire PT100 |
| Digital Inputs | 8 channels, 24 VDC, optically isolated |
| RTD Measurement Range | –200°C to +850°C (PT100) |
| RTD Accuracy | ±0.02% of full scale |
| Resolution | 20-bit (RTD inputs), 16-bit (digital inputs) |
| Isolation | Channel-to-channel and channel-to-ground (1500 VAC) |
| Signal Conditioning | Programmable filtering, averaging, scaling, and offset compensation |
| Protection | Overvoltage, reverse polarity, input burnout detection, transient suppression |
| Diagnostics | RTD open/short detection, communication status, self-test routines, channel-level diagnostics, signal quality monitoring |
| Communication | Fiber-optic (Mark V/VIe backplane) |
| Cooling | Passive – no fan |
| Operating Temp | –20°C to +65°C |
| Certifications | CE, UL, CSA, ATEX (Class I, Div 2), IEC 61508 SIL-1 |
Advantages & Features
-
Integrated RTD and Digital Inputs – The IS200DRTDH1A provides 8 RTD inputs and 8 digital inputs in a single module.
-
High Accuracy RTD Measurement – 20-bit resolution with ±0.02% accuracy for precise temperature measurement.
-
RTD Open/Short Detection – Identifies sensor faults and wiring issues.
-
Signal Quality Monitoring – Detects degraded signal conditions.
-
Optical Isolation – All digital inputs are optically isolated for robust noise immunity.
-
1500 VAC Isolation – Channel-to-channel and channel-to-ground.
-
Hot-Swap Capable – Supports live insertion/removal.
-
Extended Temperature Range – –20°C to +65°C.
Application Cases
-
Bearing Temperature Monitoring – Measures RTD signals from bearing temperature sensors.
-
Cooling System Temperature Monitoring – Monitors temperatures of cooling water, oil, and other auxiliary systems.
-
Digital Status Monitoring – Monitors digital inputs from limit switches, pressure switches, and valve position switches.
-
Exhaust Temperature Monitoring – RTD inputs for temperature monitoring.
-
Harsh Environments – Extended temperature range suits demanding installations.
Competitor Comparison
| Feature | GE IS200DRTDH1A | GE IS200DRLYH1AAA | Siemens S7-1518 | ABB AC800M PM891 |
|---|---|---|---|---|
| RTD Inputs | 8 | 0 | 8 | 8 |
| Digital Inputs | 8 | 8 | 8 | 8 |
| RTD Accuracy | ±0.02% | N/A | ±0.1% | ±0.1% |
| Resolution | 20-bit | N/A | 16-bit | 16-bit |
| Hot-Swap | Yes | Yes | No | No |
| MTBF | 82,000 hrs | 80,000 hrs | 82,000 hrs | 78,000 hrs |
Key Differentiator: The IS200DRTDH1A uniquely combines high-accuracy RTD inputs and digital inputs in a single module, making it a comprehensive temperature and status monitoring solution for GE Mark V/VIe systems.
Selection Suggestions
-
Evaluate RTD and Digital Input Requirements – Ideal for applications requiring high-accuracy RTD temperature measurement and digital input monitoring.
-
RTD Configuration – Supports 3-wire or 4-wire PT100 sensors; verify your sensor configuration.
-
Signal Quality Monitoring – Enable for early detection of signal degradation.
-
Consider Environment – –20°C to +65°C range suits harsh environments.
-
Firmware – Verify compatibility with your Mark V/VIe system.
-
Spares – Lead time typically 8–10 weeks.
Precautions
-
ESD Protection – Use wrist strap during installation.
-
RTD Wiring – For 3-wire RTDs, ensure the third wire is properly connected for lead compensation; for 4-wire RTDs, observe correct connection configuration.
-
Digital Input Wiring – Use proper gauge wiring; observe polarity for digital inputs.
-
Grounding – Connect earth lug directly to system ground with 6 mm² wire.
-
Firmware Updates – Use only GE’s official tool.
-
Commissioning – Verify RTD readings with known temperature sources and test digital inputs with simulated signals before field connection.
-
Periodic Inspection – Clean dust accumulation annually.
Summary
The IS200DRTDH1A is a comprehensive RTD temperature and digital input module for GE Speedtronic Mark V and Mark VIe turbine control systems. Its key strengths include 8 RTD inputs (3-wire/4-wire PT100) with ±0.02% accuracy, 8 digital inputs (24 VDC, optically isolated), 20-bit resolution, signal quality monitoring, RTD open/short detection, 1500 VAC isolation, –20°C to +65°C operating range, hot-swap capability, and MTBF of 82,000 hours. Ideal for bearing temperature monitoring, cooling system temperature monitoring, digital status monitoring, exhaust temperature monitoring, and harsh environments, it provides comprehensive temperature and digital input functionality for Mark V/VIe systems. When properly maintained, the IS200DRTDH1A delivers decades of reliable, precise, and versatile service in demanding environments.

GE IC200GBI001
EMERSON 1C31125G01
ABB EI813F
A-B 1794-IT8


Reviews
There are no reviews yet.