GE IS200DTAIH1A | Mark VIe Analog Input Module In Stock

Description

Product Introduction

The GE IS200DTAIH1A is a Mark VIe series analog input module that provides 8 channels of configurable analog measurement for a wide range of field sensor types in gas and steam turbine control applications. This I/O pack interfaces with voltage signals, current loops, thermocouples, and RTDs, converting them to digital values for the control system. It provides a flexible and cost-effective solution for mixed sensor environments.

The H1A revision provides 8 channels that can be independently configured for 0-10 V, ±10 V, 0-20 mA, 4-20 mA, thermocouple, or RTD inputs, with 16-bit resolution and ±0.1% accuracy. In our field experience, the DTAIH1A is a workhorse module for turbine control systems, providing reliable analog measurement for critical parameters such as temperature, pressure, and position. For facilities with mixed sensor types, this module reduces spare part inventory and simplifies configuration.

Key Technical Specifications

Key Selling Points & Differentiators

• 8-channel configurable analog input – supports voltage, current, thermocouple, and RTD inputs in a single module. Reduces spare part inventory and simplifies configuration.
• 16-bit resolution with ±0.1% accuracy – provides precise measurement for all input types. Suitable for critical turbine temperature and pressure monitoring.
• Per-channel isolation – eliminates ground loops and protects the control system from field wiring faults.
• Comprehensive diagnostics – open-circuit detection, short-circuit detection, and out-of-range detection enable rapid troubleshooting.
• Rigorous 48-hour burn-in – each unit runs with all 8 channels configured for different input types while monitoring for measurement errors and stability.
• 3-year warranty on hardware – backed by our in-house repair depot with average 48-hour turnaround. Dedicated DTAI swap-pool ensures rapid replacement.

Frequently Asked Questions (FAQ)

Can I hot-swap this IS200DTAIH1A into a running Mark VIe system?

We strongly advise against it. The DTAIH1A 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 input types does this module support?

The DTAIH1A supports: 0-10 V, ±10 V, 0-20 mA, 4-20 mA, thermocouple types J, K, T, E, R, and S, and RTD types Pt100 and Ni120. Each channel is individually configurable through ToolboxST.

Is there cold junction compensation for thermocouples?

Yes. The module includes internal cold junction compensation (CJC) with ±0.5°C accuracy. The CJC temperature is measured by an onboard sensor and applied to each thermocouple channel. For highest accuracy, ensure the module is not subject to drafts or rapid temperature changes.

What is the resolution for thermocouple and RTD measurements?

The 16-bit ADC provides approximately 0.025°C resolution for thermocouples and 0.012°C for Pt100 RTDs. The actual accuracy is limited by the sensor and the module’s ±0.1% accuracy specification.

How do I configure the channels?

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

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 RTD inputs, a 3-wire or 4-wire configuration is recommended for longer runs to compensate for lead resistance.

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 8 channels with a calibrated signal source. 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 DTAIH1A. 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 DTAI 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 DTAIH1A replacement.

Which termination board should I use with this module?

The IS200DTAIH1A mates with GE’s TS200DTA1 or TS200DTA2 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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