IS200DTURH1ABB GE

Technical Specifications

Advantages and Key Features

Factory-Preloaded RTD Configuration: The IS200DTURH1ABB ships with pre-calibrated settings for specific RTD sensor types, wiring modes, and excitation currents, reducing on-site commissioning time and eliminating manual configuration errors.

Superior RTD Measurement Accuracy: Provides exceptional temperature measurement accuracy (±0.1% ±0.2°C) making it ideal for critical bearing and winding temperature monitoring where precise readings are essential.

Flexible Wiring Configuration: Each channel can be independently configured for 2-wire, 3-wire, or 4-wire RTD connections, accommodating different field wiring scenarios.

Automatic Lead Resistance Compensation: Automatically compensates for lead wire resistance in 3-wire and 4-wire configurations, eliminating measurement errors caused by cable length variations.

Comprehensive Diagnostics: Features open-circuit detection, short-circuit detection, input range validation, and excitation current monitoring with fault reporting to the main DSP processor.

Application Fields and Case Studies

The IS200DTURH1ABB is used in GE gas and steam turbines for bearing temperature monitoring (thrust bearing, journal bearings), generator stator winding temperature measurement, turbine casing temperature monitoring, and compressor discharge temperature sensing. In a 700 MW combined-cycle plant, the IS200DTURH1ABB was selected for its factory-preloaded configuration matching the site’s specific Pt100 sensor batch. The preloaded settings reduced commissioning time by 3 days and eliminated calibration errors that had occurred with manually configured boards. When a bearing temperature reading on the IS200DTURH1ABB showed gradual increase, operators scheduled maintenance before critical limits were reached.

Comparison with Competing Products

The IS200DTURH1ABB offers the same high accuracy and flexible configuration as the IS200DTRTH1ABA with the added benefit of factory pre-configuration that reduces commissioning time. The specific “ABB” preload may be tailored for certain turbine packages or sensor batches.

Selection Recommendations

Choose the IS200DTURH1ABB when your project involves GE turbines with specified RTD sensor types and the “ABB” configuration matches your application. Use it as a replacement for IS200DTRTH1ABA boards when you require reduced commissioning effort and consistent sensor calibration. Select the appropriate wiring mode (2-wire, 3-wire, or 4-wire) based on your field cabling and accuracy requirements. Deploy multiple IS200DTURH1ABB boards to cover all bearing and winding temperature points. For critical temperature measurements, use redundant IS200DTURH1ABB boards with each RTD wired to both boards for full fault tolerance. Verify RTD type (Pt100 or Ni100) matches the board configuration before commissioning.

Precautions and Important Notes

Always use ESD-safe handling procedures when installing the IS200DTURH1ABB. Verify that the preloaded “ABB” configuration matches your specific RTD types, wiring modes, and excitation current requirements. Use proper shielded twisted-pair cable for RTD wiring to minimize electrical noise. When using 2-wire configuration, account for lead resistance errors; 3-wire or 4-wire configurations are recommended for high accuracy. Ensure correct excitation current selection to avoid RTD self-heating errors (typically 0.5 mA for Pt100). Never connect thermocouples or voltage signals to RTD inputs. Allow the IS200DTURH1ABB to stabilize for 30 minutes after power-up before relying on readings. When replacing a IS200DTRTH1ABA with a IS200DTURH1ABB, verify configuration settings in ToolboxST. Do not mix IS200DTURH1ABB with standard IS200DTRTH1ABA in redundant pairs without confirming identical settings. Store spare boards in anti-static packaging and rotate inventory every 24 months. Consult GE engineering when using the IS200DTURH1ABB with non-standard RTD types or configurations not covered by the preload.