GE DS200TCQAG1AFD

Description

Product Description

Product Parameters

• Brand/Model: GE DS200TCQAG1AFD
• Core Thermocouple Input Parameters
  • Number of Channels: 16 differential thermocouple inputs
  • Supported Thermocouple Types: J, K, T, E, R, S, B, N
  • Temperature Range: -200°C to +1800°C (varies by thermocouple type)
  • Accuracy: ±0.1°C (0°C to +1000°C), ±0.2% of reading (outside 0°C–1000°C)
  • Resolution: 0.01°C
  • Signal Conditioning: Cold-junction compensation (±0.5°C accuracy), 50/60Hz noise rejection, linearization
• System & Communication Parameters
  • Compatible Systems: GE Mark V/VI Turbine Control Systems, DS200SBCAG1A bus controller, DS200PANAH1A operator panels
  • Communication Interface: GE Genius Bus (1 Mbps)
  • Diagnostic Functions: Open-circuit detection, short-circuit detection, thermocouple type mismatch alerts, LED status indicators per channel
  • Configuration: GE CIMPLICITY Machine Edition (thermocouple type, alarm setpoints)
• Environmental & Physical Parameters
  • Operating Temperature: -40°C ~ +85°C
  • Storage Temperature: -55°C ~ +125°C
  • Vibration Resistance: 10g (5-2000Hz, IEC 60068-2-6)
  • Shock Resistance: 50g (11ms half-sine wave, IEC 60068-2-27)
  • Protection Grade: IP20 (rack-mount)
  • Dimensions: 150mm (W) × 200mm (H) × 50mm (D) (Mark V/VI chassis-compatible)
  • Power Supply: 24V DC (18-30V range, redundant input support)

Advantages & Features

1. High-Precision Temperature Sensing: GE DS200TCQAG1AFD delivers ±0.1°C accuracy in critical temperature ranges, ensuring reliable data for turbine performance optimization and safety monitoring.
2. Multi-Type Thermocouple Support: Compatibility with 8 thermocouple types allows integration with diverse temperature sensors across turbine systems, eliminating the need for multiple specialized input modules.
3. Advanced Diagnostics: Real-time fault detection (open circuits, short circuits) enables proactive maintenance of thermocouple sensors, reducing unplanned downtime from failed temperature measurements.
4. Seamless Genius Bus Integration: Direct communication with the GE Genius Bus ensures temperature data is instantly available to turbine control logic, enabling rapid responses to temperature anomalies (e.g., overheating bearings).

Application Fields & Cases

1. Gas Turbine Exhaust Temperature Monitoring: A combined-cycle power plant deployed GE DS200TCQAG1AFD modules to measure exhaust manifold temperatures (Type K thermocouples) in 9FA gas turbines. The module’s high accuracy and cold-junction compensation ensured precise temperature readings, enabling optimal combustion tuning and reducing NOx emissions by 4%.
2. Offshore Compressor Turbine Bearing Sensing: An offshore oil platform used GE DS200TCQAG1AFD to monitor bearing temperatures (Type J thermocouples) in gas turbine-driven compressors. Open-circuit detection alerts allowed maintenance teams to replace faulty sensors before bearing damage occurred, avoiding costly compressor shutdowns.
3. Industrial Steam Turbine Stator Temperature Acquisition: A pulp mill integrated GE DS200TCQAG1AFD into its Mark V system to measure stator winding temperatures (Type R thermocouples) in steam turbines. The module’s linearization and noise rejection features provided stable data, enabling predictive maintenance of stator insulation.

Competitor Comparison

Selection Suggestions & Precautions

1. Selection Suggestions: GE DS200TCQAG1AFD is ideal for GE Mark V/VI turbine control system users needing high-channel-count, high-precision thermocouple input (e.g., power generation, offshore oil & gas). For low-channel applications, choose the GE DS200TCQAG1BFD (8 channels); for non-GE systems, select Siemens SM 331 or Allen-Bradley 1756-IT6I.
2. Precautions:
   • Configure thermocouple types correctly in GE CIMPLICITY to ensure accurate linearization and cold-junction compensation—mismatched types will cause measurement errors.
   • Use shielded twisted-pair cables for thermocouple wiring and ground shields at the module end only to eliminate ground loops and electromagnetic interference (EMI).
   • Calibrate the module annually (per GE guidelines) using a precision temperature calibrator to maintain accuracy over time.
   • Set alarm thresholds for critical temperatures (e.g., bearing overheating) to trigger early warnings and prevent turbine damage.
   • Replace thermocouple sensors with GE-certified components to ensure compatibility and measurement reliability.

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