ALSTOM UT150-1

Manufacturer:​ ALSTOM (now GE Vernova) — ALSPA C300/C400 & Mark VIe DCS family
Product Brief:​ An 8-channel galvanically isolated temperature acquisition module for thermocouples, RTDs, and millivolt signals, designed for steam/gas turbine and boiler temperature monitoring in power plants.
Category:
Description
Technical Specifications
  • Channels:​ 8 independent isolated inputs, each with individual ADC
  • Sensor Types:​ Thermocouple Types J, K, T, E, R, S, B; RTD Pt100 / Pt1000 / Ni120; ±100 mV DC
  • Accuracy:​ ±0.25 % FS; Cold Junction Compensation (CJC) accuracy ±0.5 °C
  • Diagnostics:​ Open sensor, short circuit, over-range detection with fault alarm to host
  • Redundancy:​ Supports TMR (Triple Modular Redundant) architecture with Mark VIe
  • Power Supply:​ 24 VDC (±10%)
  • Operating Temp.:​ –20 °C to +60 °C
  • Storage Temp.:​ –40 °C to +85 °C
  • Safety / SIL:​ IEC 61508 SIL 2 certified (SIL 3 achievable in TMR configuration)
  • Mounting:​ 19″ rack / Mark VIe I/O carrier, plug-in Eurocard style (approx. 3U height)
  • Communication:​ Proprietary ALSTOM backplane bus to controller
Features & Applications
  • Per-channel software-configurable type and range
  • Real-time sensor health monitoring
  • Used in turbine exhaust temp., bearing temp., casing temp. monitoring
Installation & Notes
  • Verify correct CJC jumper / software setting per channel group
  • Use shielded twisted-pair cabling for TC inputs to minimize EMI
  • Module is obsolete (OEM discontinued) — typically sourced as refurbished spare
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