GE DS200TCEAG1B

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
Sampling: 10 Hz sequential
Temp Range: -30°C to +70°C (operating) – wider than G1A, -40°C to +85°C (storage)
Mounting: VME rack
Suffix “G1B”: Enhanced accuracy variant with basic diagnostics (open/short only), fixed firmware, improved cold-junction linearization, and extended upper temperature limit

Key Features

Enhanced accuracy – ±0.08% for critical temperature measurements requiring high precision
Faster sampling – 10 Hz for more responsive monitoring compared to standard G1 series
Extended upper temperature limit – operates up to 70°C (vs 65°C on G1A), suitable for hotter cabinets
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) – tighter accuracy improves combustion control and emission tuning
Steam turbine bearing and casing temperatures – critical protection with faster response and extended cabinet temperature tolerance
Generator stator winding temperature – precise monitoring for over-temperature protection
HRSG temperature monitoring – improved accuracy for thermal efficiency calculations
Compressor discharge temperature – supports performance optimization with ±0.08% accuracy
Cabinets with limited cooling – where ambient temperatures may reach 65-70°C

Comparison with Competitors

Selection Tips

Choose the DS200TCEAG1B if you need higher accuracy (0.08%) and faster sampling (10 Hz) with the ability to operate in cabinets up to 70°C
For the same accuracy but lower temperature limit (65°C), the DS200TCEAG1A is available
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

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 +70°C operating range
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%)