DS200TCPDG1B GE

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 enhanced linearization and thermal isolation
Isolation: 1500V AC
Accuracy: ±0.08% at 25°C, ±0.15% across full temperature range
Sampling: 10 Hz sequential
Temp Range: -30°C to +70°C (operating) – wider upper limit than G1A (65°C)
Storage: -40°C to +85°C
Mounting: VME rack
Suffix “G1B”: Enhanced accuracy + G1 wiring + extended diagnostics (drift, degradation, sense-lead integrity) + extended upper temperature limit (70°C) + fixed firmware

Key Features

• Enhanced accuracy – ±0.08% for critical temperature monitoring

• Extended diagnostics – drift monitoring, degradation prediction, and sense-lead integrity checks (beyond basic open/short)

• Faster sampling – 10 Hz for responsive monitoring

• Extended upper temperature limit – operates up to 70°C, suitable for hotter cabinets

• Improved cold-junction compensation – stable readings across ambient variations

• Simple swap – no firmware changes required in most Mark V systems

• LED status per channel + board health, with extended diagnostic indicators

• 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 EGT monitoring in hot climates – where cabinet temperatures reach 65–70°C and predictive diagnostics are valuable

• Steam turbine bearings in poorly ventilated areas – critical protection with drift anticipation

• Generator stator cooling in tropical environments – precision measurement with diagnostic assurance

• Compressor performance monitoring in desert installations – reliability under thermal stress

• Critical points requiring both high accuracy and early fault warnings

Comparison with Competitors

Selection Tips

• Choose the DS200TCPDG1B if you need high accuracy, extended diagnostics, and the ability to operate at up to 70°C in a G1 cabinet

• For the same features but standard temperature (65°C), the DS200TCPDG1A may be sufficient

• For high accuracy with extended diagnostics and extreme environmental protection (wider range, coatings), consider DS200TCDAH1BGD (4-wire) or DS200TCDAG1ADA (2-wire)

• For basic accuracy without diagnostics, the DS200TCEBG1B is more economical

• Source refurbished units with diagnostic validation and drift baseline records

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 – exceeding 70°C reduces component life

• Calibrate every 24 months – extended diagnostics depend on valid baseline calibration

• Ground shields only at the board end

• Verify thermocouple type – optimized for J/K (T/E reduces accuracy to ±0.15%)

• Monitor diagnostic logs – drift warnings indicate sensor aging; plan proactive replacement

• Label clearly – mark as “G1B PRECISION + DIAG” to ensure proper handling and maintenance tracking

• Monitor cabinet temperature – if consistently near 70°C, consider cooling improvements or upgrade to -40°C to +75°C variants if needed