GE DS3800XAIC1C1C

Key Parameters

• Analog Input Channels: 16 differential or 32 single-ended (software-configurable)

• Analog Input Types: 0–10V, ±10V, 4–20mA (per-channel jumper-selectable)

• Analog Output Channels: 8 independent (0–10V, ±10V, or 4–20mA)

• Resolution: 16-bit ADC (inputs – improved over 14-bit standard), 12-bit DAC (outputs)

• Accuracy: ±0.05% of full scale (inputs – improved), ±0.2% of full scale (outputs)

• Isolation: 2500V RMS channel-to-backplane (enhanced)

• Diagnostics: Per-channel LED status, over-range/under-range detection, open-circuit detection, output short-circuit detection, self-calibration on power-up

• EMI/RFI Filtering: Enhanced input filters for improved noise rejection

• Temp Range: –40°C to +85°C (extended)

• Power Supply: +5V, ±15V from VME backplane

• Physical: 6U VME single-slot board

• Key Variant Features: 16-bit ADC, per-channel configurability, 2500V isolation, extended temp range, self-calibration, conformal coating, firmware rev 1C1C

Advantages

• Per-channel configurability – each of the 16 inputs can be independently set for voltage or current, providing maximum flexibility for mixed-signal applications.

• High precision – 16-bit ADC resolution (vs. 14-bit on standard DS3800XAIC) delivers ±0.05% accuracy for critical measurements.

• Superior isolation – 2500V RMS isolation protects the backplane from field-side surges and transients.

• Extended temperature range – operates from –40°C to +85°C, suitable for harsh outdoor, offshore, or unheated cabinet installations.

• Self-calibration – automatic calibration at power-up compensates for temperature drift and component aging.

• Enhanced diagnostics – includes output short-circuit detection and per-channel LEDs for rapid troubleshooting.

• Conformal coating – protects against moisture, salt spray, and airborne contaminants.

• Drop-in compatible – direct replacement for standard DS3800XAIC with no wiring changes.

Applications

• Mixed signal environments – the General Electric DS3800XAIC1C1C is ideal for installations with a variety of sensor types (voltage, current, thermocouple via transmitters) that require individual channel configuration.

• Critical turbine monitoring – provides precise, flexible inputs for temperature, pressure, flow, and position transmitters in gas and steam turbines.

• Offshore platforms – the extended temperature range and conformal coating make it suitable for saltwater environments.

• Harsh industrial environments – chemical plants, desert installations, and pulp & paper mills benefit from the ruggedized design.

• Valve position feedback – monitors multiple LVDT or potentiometer feedback signals with individual configuration.

• Retrofits – adds diagnostic capabilities and higher precision to legacy Mark IV systems.

vs Competitors & Previous Variants

Selection Tips

• Mixed signal types – choose the DS3800XAIC1C1C when you have a mix of voltage and current sensors that cannot be grouped into banks; per-channel configurability provides maximum flexibility.

• Harsh environments – select this variant for offshore, desert, or chemically aggressive sites where temperature extremes and corrosion are concerns.

• High precision needs – use the General Electric DS3800XAIC1C1C for critical measurements requiring ±0.05% accuracy (e.g., exhaust temperature averaging, flow calculations).

• Diagnostic requirements – the enhanced diagnostics (self-calibration, output short detection) make this board ideal for facilities with proactive maintenance programs.

• Jumper documentation – each input channel has its own jumper for voltage/current selection; record all jumper positions before removal for easy reinstallation.

• Spare strategy – keep one DS3800XAIC1C1C per 10 installed units; its flexibility and ruggedness make it a versatile and critical spare.

• Calibration – although self-calibrating, perform a verification check with a precision calibrator on critical channels during commissioning.

Critical Precautions

• Jumper configuration – each of the 16 input channels on the DS3800XAIC1C1C requires its own jumper setting. Document all positions before board removal; incorrect settings will produce erroneous readings.

• Over-voltage on inputs – never apply voltage above ±30V to any analog input; this can damage the 16-bit ADC front-end.

• Output short circuit – while the DS3800XAIC1C1C has short-circuit detection, repeated shorts can degrade output accuracy. Clear faults promptly and inspect field wiring.

• Ground loops – use single-point grounding for field transmitters to avoid common-mode voltage exceeding ±10V on inputs.

• Wiring separation – keep analog signal wiring away from AC power lines and high-voltage cables to prevent noise coupling.

• Self-calibration – allow the General Electric DS3800XAIC1C1C to complete its power-up self-calibration cycle (approximately 5 seconds) before relying on measurements.

• Calibration intervals – schedule periodic verification checks every 6–12 months to maintain ±0.05% accuracy, especially for critical 4–20mA loops.

• ESD handling – always use a grounded wrist strap; the high-precision 16-bit ADC is particularly ESD-sensitive.

• Humidity – avoid condensation; conformal coating protects against moisture, but extreme humidity can still affect high-impedance input circuits.

• Firmware compatibility – confirm the main processor firmware version supports the DS3800XAIC1C1C; the 16-bit resolution and self-calibration may require a software update.

• Hot-swap – never insert or remove the DS3800XAIC1C1C while the rack is powered; this can cause bus errors or component damage.