GE DS200TCQAG1BHF

Description

Product Description

Product Parameters

• Brand/Model: GE DS200TCQAG1BHF
• Core Thermocouple Input Parameters
  • Number of Channels: 8 differential thermocouple inputs
  • Supported Thermocouple Types: J, K, T, E, R, S, B, N (software-configurable per channel)
  • Temperature Range: -200°C to +1800°C (varies by thermocouple type: e.g., K-type: -200°C to +1372°C; R-type: 0°C to +1768°C)
  • 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 notch filtering, surge protection (6kV ESD)
• 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, half-duplex)
  • Diagnostic Functions: Open-circuit/short-circuit detection, thermocouple type mismatch alerts, over-temperature alarms (configurable setpoints), LED status indicators (Power/OK/Fault per channel)
  • Configuration: GE CIMPLICITY Machine Edition (thermocouple type assignment, alarm thresholds)
• 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: 100mm (W) × 150mm (H) × 50mm (D) (Mark V/VI chassis-compatible)
  • Power Supply: 24V DC (18-30V range, redundant input support)

Advantages & Features

1. Channel-Specific Configurability: GE DS200TCQAG1BHF allows independent thermocouple type assignment per channel, enabling mixed sensor deployments (e.g., K-type for exhaust, R-type for high-temperature blades) without additional modules.
2. Enhanced Noise Rejection: Multi-stage filtering (50/60Hz notch + low-pass) eliminates electrical interference from turbine generators and power systems, ensuring stable temperature readings in harsh industrial environments.
3. Proactive Diagnostics: Real-time fault detection for open/short circuits and sensor mismatches triggers immediate alerts, enabling maintenance teams to resolve issues before temperature data loss impacts turbine safety.
4. Space-Efficient Design: The compact 100mm-wide form factor maximizes rack space utilization in tight turbine control cabinets, supporting high-density temperature monitoring in limited footprint environments.

Application Fields & Cases

1. Gas Turbine Blade Temperature Monitoring: A combined-cycle power plant deployed GE DS200TCQAG1BHF modules to monitor turbine blade temperatures (R-type thermocouples) in 7FA gas turbines. Channel-specific configurability allowed mixing R-type and K-type sensors for blade and exhaust measurements, while noise rejection ensured stable data despite proximity to high-voltage generators.
2. Offshore Compressor Lube Oil Temperature Sensing: An offshore oil platform used GE DS200TCQAG1BHF to track lube oil temperatures (J-type thermocouples) in gas turbine-driven compressors. Built-in over-temperature alarms triggered alerts at critical thresholds, preventing bearing damage from inadequate lubrication.
3. Industrial Steam Turbine Combustion Chamber Monitoring: A pulp mill integrated GE DS200TCQAG1BHF into its Mark V system to measure combustion chamber temperatures (B-type thermocouples). Cold-junction compensation maintained accuracy across the module’s wide operating temperature range (-20°C to +60°C in the control cabinet), ensuring reliable data for combustion efficiency tuning.

Competitor Comparison

Selection Suggestions & Precautions

1. Selection Suggestions: GE DS200TCQAG1BHF is ideal for GE Mark V/VI users needing compact, configurable thermocouple input (e.g., offshore platforms, small-scale power plants). For high-channel-count applications, choose the GE DS200TCQAG1AFD (16 channels); for non-GE systems, select Siemens SM 331 or Allen-Bradley 1756-IT6I.
2. Precautions:
   • Assign thermocouple types correctly per channel in GE CIMPLICITY—mismatched settings will cause significant measurement errors (e.g., R-type sensor assigned to K-type channel).
   • Use twisted-pair shielded thermocouple wire (e.g., Type K extension wire for K-type sensors) to minimize signal degradation and EMI pickup.
   • Ground the module’s shield terminal to the turbine control cabinet’s earth ground to reduce noise and ensure safety compliance (IEC 61010).
   • Calibrate the module every 12 months using a precision temperature calibrator (e.g., Fluke 9142) to maintain accuracy over time.
   • Test sensor fault detection functionality quarterly by disconnecting a thermocouple to verify alarm triggering and HMI notification.

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