GE DS200TCEAG1A

Technical Parameters

Manufacturer: GE
Series: Mark V / Mark VIe
Channels: 16 differential
Input Range: -10 mV to +100 mV (Type J/K/T/E)
Cold Junction: Single onboard precision sensor with enhanced linearization
Isolation: 1500V AC
Accuracy: ±0.08% at 25°C (better than standard G1 series)
Sampling: 10 Hz sequential (faster than G1 series)
Temp Range: -30°C to +65°C (operating), -40°C to +85°C (storage)
Mounting: VME rack
Suffix “G1A”: Enhanced accuracy variant with basic diagnostics (open/short only), fixed firmware, and improved cold-junction linearization

Key Features

Enhanced accuracy – ±0.08% vs ±0.12% on standard G1B, ideal for critical temperature measurements
Faster sampling – 10 Hz (vs 5 Hz on G1 series) for more responsive monitoring
Improved cold-junction compensation – better linearization across ambient temperature variations
Basic self-diagnostics – open-circuit and short-circuit detection per channel
Simple swap – no firmware changes required in most Mark V systems
LED status per channel + board health
Standard conformal coating for moisture/dust resistance
Backward compatible with Mark V and Mark VIe (hot-swap only on VIe Rev D+)

Applications

Gas turbine exhaust temperature monitoring (EGT) – where tighter accuracy improves combustion control and emission monitoring
Steam turbine bearing and casing temperatures – critical protection with faster response
Generator stator winding temperature – precise monitoring for over-temperature protection
HRSG temperature monitoring – improved accuracy for thermal efficiency calculations
Compressor discharge temperature – where ±0.08% accuracy supports performance optimization

Comparison with Competitors

Selection Tips

Choose the DS200TCEAG1A if you need higher accuracy and faster sampling than standard G1 boards, but do not require advanced predictive diagnostics
For basic monitoring where ±0.12% is acceptable, the DS200TCDAG1B is more economical
For advanced diagnostics (drift/degradation), consider the DS200TCDAG1ADA (2-wire) or DS200TCDAH1BGD (4-wire)
Verify existing wiring is 2-wire standard – this board uses G1-series terminal mapping
Use correct G1-series terminal blocks

Precautions

ESD sensitive – use wrist strap
Power down for Mark V removal (no hot-swap)
Torque terminals to 0.5 N·m max
Do not exceed -30°C to +65°C ambient
Calibrate every 24 months – accuracy spec depends on valid calibration
Ground shields only at the board end
Verify thermocouple type – hardware optimized for J/K (T/E reduces accuracy to ±0.15%)