DS200TCQAG1BDC 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
Operating Temp: -30°C to +70°C
Storage Temp: -40°C to +85°C
Mounting: VME rack
Suffix “G1BDC”: High accuracy + advanced diagnostics (drift, degradation, sense-lead) + G1 wiring + extended upper temperature (70°C) + “DC” coating package (mid-to-high grade – thicker, more chemically resistant silicone-acrylic or urethane blend offering superior moisture barrier and moderate solvent/chemical resistance)

Key Features

High accuracy – ±0.08% for critical temperature monitoring
Advanced diagnostics – drift monitoring, degradation prediction, sense-lead integrity, and open/short detection
Extended upper temperature limit – operates up to 70°C, suitable for hotter cabinets
“DC” mid-to-high grade coating – superior moisture resistance and moderate chemical/solvent protection; suitable for persistently humid or chemically exposed environments
Faster sampling – 10 Hz for responsive monitoring
G1 wiring configuration – standard channel-to-terminal mapping
Simple swap – no firmware changes required in most Mark V systems
LED status per channel + board health with diagnostic indicators
Backward compatible with Mark V and Mark VIe (hot-swap only on VIe Rev D+)

Applications

Coastal power plants with persistent salt spray – where cabinet temperatures reach 65-70°C and improved coating durability is needed
Chemical processing facilities with regular fume exposure – moderate chemical resistance for long-term reliability
High-humidity tropical installations with washdowns – robust moisture barrier
Paper and pulp mills – humid, warm environments with chemical exposure
Gas turbine EGT monitoring in corrosive, hot environments – high accuracy with predictive diagnostics and environmental protection

Comparison with Competitors

Selection Tips

Choose the DS200TCQAG1BDC if you need high accuracy (±0.08%), advanced diagnostics, extended temperature (70°C), and improved chemical/moisture resistance in a G1 cabinet – an excellent balance for warm, chemically exposed environments requiring predictive maintenance
For the same features with standard coating (less protection), consider DS200TCQAG1B
For similar protection with premium coating (better chemical resistance), consider DS200TCQAG1BEC or DS200TCQAG1BDE if available
For severe chemical/corrosion exposure, upgrade to DS200TCQAG1BJE (military-grade) or DS200TCQAG1BTF (PTFE) if available
For 4-wire long-distance needs with diagnostics, consider DS200TCDAH1BGD (lower accuracy at ±0.10%)
Verify existing wiring is 2-wire standard – G1-series terminal mapping applies
Source refurbished units with coating inspection verification and diagnostic test 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 -30°C to +70°C operating range – exceeding 70°C reduces component life
Avoid damaging the coating – scratches compromise protection
Use isopropyl alcohol only for cleaning – confirm solvent compatibility with GE documentation for “DC” coating; it resists some solvents but avoid acetone/MEK
Calibrate every 24 months – diagnostics and accuracy depend on a 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 “TCQAG1BDC – DIAG/EXT TEMP/DC COAT” to ensure proper handling
Monitor cabinet temperature – if consistently near 70°C, consider cooling improvements or upgrade to wider-range variants if needed