DS200TCQCG1AHE 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 improved 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 +65°C
Storage Temp: -40°C to +85°C
Mounting: VME rack
Suffix “G1AHE”: High accuracy + advanced diagnostics (drift, degradation, sense-lead) + C1 wiring + enhanced cold-junction compensation + “HE” premium coating (high-grade urethane or silicone blend offering excellent moisture barrier, good-to-high chemical resistance, and moderate solvent resistance – generally comparable to “EC” or “DE” grades)

Key Features

High accuracy – ±0.08% for critical temperature monitoring
Advanced diagnostics – drift monitoring, degradation prediction, sense-lead integrity, and open/short detection
Enhanced cold-junction compensation – better linearization across ambient variations
“HE” premium coating – excellent moisture resistance, good-to-high chemical protection, and moderate solvent resistance; suitable for harsh environments
Faster sampling – 10 Hz for responsive monitoring
C1 wiring configuration – specific channel-to-terminal mapping for certain GE cabinet variants; direct fit for C1-configured systems
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

Chemical processing plants with C1 wiring – premium coating protects against solvents and chemicals while diagnostics ensure reliability
Coastal power plants with heavy salt spray – excellent moisture barrier with enhanced performance
Paper and pulp mills – harsh chemical environments with humidity
Gas turbine EGT monitoring in corrosive environments – high accuracy with predictive diagnostics and environmental protection
Compressor monitoring in chemically aggressive areas – noise rejection with environmental protection

Comparison with Competitors

Selection Tips

Choose the DS200TCQCG1AHE only if your cabinet uses C1 wiring configuration and you need high accuracy (±0.08%), advanced diagnostics, enhanced cold-junction compensation, and premium coating protection – ideal for chemically aggressive C1 environments requiring predictive maintenance
For C1 systems with the same features but standard coating, consider DS200TCQCG1A (less protection)
For similar premium coating with potentially different chemical resistance, compare with DS200TCQCG1AEC, DS200TCQCG1ADE, or DS200TCQCG1AJE (military-grade) if available
For severe chemical/corrosion exposure, upgrade to DS200TCQCG1AJE (military-grade) or DS200TCQCG1ATF (PTFE) if available
For extended temperature (70°C) with similar features, consider DS200TCQCG1BHE (if available)
For G1 systems requiring similar features, use DS200TCQBG1AHE (if available)
Verify existing wiring pinout against C1 standard – using the wrong terminal block or miswiring will scramble channel readings
Source refurbished units with C1 pinout verification, coating inspection, 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 +65°C operating range – exceeding 65°C reduces component life
Pinout critical – C1 mapping differs from G1/G2; verify cabinet wiring before installation
Avoid damaging the coating – scratches compromise protection
Use isopropyl alcohol only for cleaning – “HE” coating resists many solvents but avoid acetone/MEK; confirm compatibility with GE documentation
Calibrate every 24 months – diagnostics, enhanced accuracy, and cold-junction compensation 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 board and slot as “TCQCG1AHE – DIAG/ENH CJC/C1/HE COAT” to ensure proper handling and prevent future miswiring with G1/G2 boards
Do not mix C1, G1, and G2 boards without verifying terminal block compatibility in the same rack