GE IS200DTCIH1A | Mark VIe Thermocouple Input Module In Stock

Description

Product Introduction

The GE IS200DTCIH1A is a Mark VIe series dedicated thermocouple input module that provides 16 channels of high-density temperature measurement for gas and steam turbine control applications. This I/O pack interfaces with thermocouple sensors (J, K, T, E, R, S), converting them to digital temperature values for the control system. It provides a dedicated, high-density solution for applications requiring numerous thermocouple measurements.

The H1A revision provides 16 channels of thermocouple input with 16-bit resolution and ±0.1% accuracy. The module includes per-channel cold junction compensation (CJC) and open-circuit detection. In our field experience, the DTCIH1A is used extensively for turbine exhaust temperature monitoring, bearing temperature measurement, and other thermal monitoring applications where thermocouple sensors are standard. For facilities with 16 or more thermocouple inputs, this module provides a space-efficient and cost-effective solution.

Key Technical Specifications

Key Selling Points & Differentiators

• 16-channel high-density thermocouple input – provides 16 thermocouple measurements in a single slot. Significantly reduces rack space for multiple thermocouple applications.
• Per-channel cold junction compensation – each channel uses its own CJC sensor for improved accuracy. Eliminates errors from thermal gradients across the module.
• 16-bit resolution with ±0.1% accuracy – provides precise temperature measurement for critical turbine monitoring.
• Comprehensive diagnostics – open-circuit detection alerts you immediately to thermocouple failures. CJC fault detection ensures compensation accuracy.
• Rigorous 48-hour burn-in – each unit runs with all 16 channels driven by a calibrated thermocouple simulator across temperature cycling.
• 3-year warranty on hardware – backed by our in-house repair depot with average 48-hour turnaround. Dedicated DTCI swap-pool ensures rapid replacement.

Frequently Asked Questions (FAQ)

Can I hot-swap this IS200DTCIH1A into a running Mark VIe system?

We strongly advise against it. The DTCIH1A has shown unpredictable behavior when inserted into a powered backplane due to the configuration initialization process. Schedule a controlled outage, de-energize the rack, and swap it during planned maintenance.

What thermocouple types does this module support?

The DTCIH1A supports thermocouple types J, K, T, E, R, and S. Each channel is individually configurable through ToolboxST. It does not support B or N type thermocouples – use the DTAI series for those types.

Is there cold junction compensation on this module?

Yes. The module includes per-channel cold junction compensation (CJC) with ±0.5°C accuracy. Each channel has its own CJC sensor, eliminating errors from thermal gradients across the module. This is a significant advantage over modules with single-point CJC.

What is the maximum cable length for thermocouple inputs?

For thermocouple inputs, we recommend using shielded, twisted-pair extension wire with a maximum length of 100 meters. Beyond that, noise pickup and resistance effects degrade accuracy. For critical measurements, keep runs as short as practical.

How do I configure the channels?

Channel configuration is done in ToolboxST. Each channel can be set to a specific thermocouple type. The configuration is stored in the module’s EEPROM. After replacement, you must reconfigure the new module using ToolboxST.

What happens if a thermocouple wire breaks?

The module includes open-circuit detection. If a thermocouple input is open, the module will report a diagnostic flag and the controller can take appropriate action. No damage to the module occurs.

How do I verify this is a genuine GE module?

We source exclusively from GE-authorized liquidations. Our verification includes OEM packaging inspection, serial number cross-check against GE records, and PCB inspection for GE-specific markings. We test all 16 channels with a calibrated thermocouple simulator. We provide PCB photographs upon request.

Will I lose my configuration data when I replace the module?

Yes. Configuration is stored in the module’s EEPROM, not in the controller. You will need to reconfigure the new module in ToolboxST after installation. Take screenshots of your current configuration before replacement.

What is the expected lifespan of this unit?

We see MTBF around 150,000 hours for the DTCIH1A. The module has no wearable components. We have seen these units exceed 18 years in field service.

What happens if the module fails within the warranty period?

We cross-ship a tested replacement from our dedicated DTCI swap-pool the same business day. You return the failed unit within 15 days. Our repair depot has an average 48-hour turnaround. No restocking fees. You receive a DTCIH1A replacement.

Which termination board should I use with this module?

The IS200DTCIH1A mates with GE’s TS200DTC1 or TS200DTC2 termination boards. Check ribbon cable orientation; pin 1 has a red stripe. We include a wiring diagram PDF with every order.

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