Description
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 “G2ABC”: Basic accuracy (0.12%) + G2 wiring + basic diagnostics (open/short only) + enhanced cold-junction compensation + “ABC” enhanced coating (offering good moisture resistance and mild chemical protection – 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 G2 variants
G2-specific wiring configuration – unique channel-to-terminal mapping for G2-configured systems; direct fit for G2 cabinets
“ABC” 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
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 G2 wiring and moderate salt exposure – good moisture protection with enhanced compensation
High-humidity tropical installations with G2 configuration – enhanced coating with improved ambient stability
Industrial environments with G2 cabinets and occasional moisture – reliable moisture barrier
Compressor monitoring in humid climates with G2 wiring – environmental protection with basic accuracy
Legacy G2 system upgrades in humid areas – drop-in replacement with modest stability and coating improvements
Comparison with Competitors
| Feature | DS200TCRAG2ABC |
ABB TTH300 | Siemens 7KG7750 |
|---|---|---|---|
| Channels | 16 | 8 | 12 |
| Accuracy | ±0.12% | ±0.10% | ±0.12% |
| Sampling | 5 Hz | 10 Hz (simultaneous) | 8 Hz (simultaneous) |
| Temp Range | -25°C to +60°C | -25°C to +65°C | -20°C to +60°C |
| Cold Junction Comp. | Enhanced | Standard | Standard |
| Coating Type | “ABC” enhanced | Standard acrylic | Standard acrylic |
| Moisture Resistance | Good | Moderate | Moderate |
| Wiring Config | G2-specific | Standard | Standard |
| GE Native Integration with G2 Cabs | Yes (direct fit) | No | No |
| Hot-Swap | No (V) / Yes (VIe) | No | Yes |
Selection Tips
Choose the DS200TCRAG2ABC only if your cabinet uses G2 wiring configuration and you need basic accuracy with enhanced cold-junction compensation and enhanced coating protection – a cost-effective solution for humid G2 environments
For G2 systems with standard compensation, consider DS200TCRAG2 (if available)
For better chemical resistance with similar specs, consider premium coatings (EC, DE) if available in G2 series
For higher accuracy (±0.08%) and faster sampling (10 Hz) with similar coating, upgrade to the DS200TCQAG2ABC (if available)
For G1 systems requiring similar features, use DS200TCRAG1ABC (if available)
If you are rewiring the cabinet, consider converting to G1 for broader board availability
Verify existing wiring pinout against G2 standard – using the wrong terminal block or miswiring will scramble channel readings
Source refurbished units with G2 pinout verification, coating inspection, 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
Pinout critical – G2 mapping differs from G1; verify cabinet wiring before installation
Avoid damaging the coating – scratches compromise protection
Use isopropyl alcohol only for cleaning – “ABC” coating is vulnerable to stronger solvents; avoid acetone/MEK
Calibrate every 24 months – accuracy and compensation depend 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 “TCRAG2ABC – ENH CJC/G2/ABC COAT” to ensure proper handling and prevent future miswiring with G1 boards
Do not mix G1 and G2 boards without verifying terminal block compatibility in the same rack

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