GE DS200TCRAG1AAA

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 sensor with improved linearization
Isolation: 1500V AC
Accuracy: ±0.12% at 25°C, ±0.20% across full temperature range
Sampling: 5 Hz sequential
Operating Temp: -25°C to +60°C
Storage Temp: -40°C to +85°C
Mounting: VME rack
Suffix “G1AAA”: Basic accuracy (0.12%) + G1 wiring + basic diagnostics (open/short only) + enhanced cold-junction compensation + “AAA” coating package (enhanced conformal coating offering good moisture resistance and mild chemical protection – typically comparable to “AA” or “FB” grades)

Key Features

Basic accuracy – ±0.12% for general-purpose temperature monitoring
Enhanced cold-junction compensation – better linearization across ambient variations than standard G1 variants
“AAA” enhanced coating – good moisture resistance and mild chemical protection; suitable for moderately humid environments
Basic self-diagnostics – open-circuit and short-circuit detection per channel
Standard sampling – 5 Hz for typical turbine monitoring applications
G1 wiring configuration – standard channel-to-terminal mapping matching most GE cabinets
Simple swap – no firmware changes required in most Mark V systems
LED status per channel + board health
Backward compatible with Mark V and Mark VIe (hot-swap only on VIe Rev D+)

Applications

Coastal power plants with moderate salt exposure and G1 wiring – good moisture protection with enhanced compensation
High-humidity tropical installations – enhanced coating with improved ambient stability
Industrial environments with occasional moisture – reliable moisture barrier
Compressor monitoring in humid climates – environmental protection with basic accuracy
Legacy system upgrades in humid areas – drop-in replacement with modest stability and coating improvements

Comparison with Competitors

Selection Tips

Choose the DS200TCRAG1AAA for basic temperature monitoring in G1 cabinets where improved cold-junction stability and enhanced coating protection are beneficial – a cost-effective solution for humid environments
For standard compensation with the same accuracy and coating, consider the DS200TCRAG1AA (if available)
For higher accuracy (±0.08%) and faster sampling (10 Hz) with similar coating, upgrade to the DS200TCQAG1AAA (if available)
For better chemical resistance with similar specs, consider premium coatings (EC, DE) if available
Source refurbished units with coating inspection verification and cold-junction compensation validation

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 -25°C to +60°C operating range
Avoid damaging the coating – scratches compromise protection
Use isopropyl alcohol only for cleaning – “AAA” coating is vulnerable to stronger solvents; avoid acetone/MEK
Calibrate every 24 months – accuracy spec depends on valid calibration
Ground shields only at the board end
Verify thermocouple type – optimized for J/K (T/E reduces accuracy to ±0.20%)
Label clearly – mark board and slot as “TCRAG1AAA – ENH CJC/AAA COAT” to distinguish from standard boards