GE DS3800HIOA1C1D

Parameters

• Analog Inputs: 4 channels, 4–20mA (default) or 0–10V DC (jumper-configurable)

• Analog Outputs: 4 channels, 4–20mA (default) or 0–10V DC (jumper-configurable)

• Resolution: 12-bit ADC (inputs) / 12-bit DAC (outputs)

• Accuracy: ±0.07% of full scale (C1 improved over B1’s ±0.08%)

• Input Impedance: 250Ω (current) / >1MΩ (voltage)

• Output Drive: 4–20mA into 750Ω max / 0–10V into 5kΩ min

• Filtering: 50Hz/60Hz adaptive noise rejection with drift monitoring (C1 feature)

• Isolation: 2500V RMS optical isolation (upgraded from 1500V on earlier variants)

• Power: +5V DC @ 1.0A, +15V DC @ 0.3A (requires both rails)

• Scan/Update Rate: 60ms (inputs, C1 optimized) / 60ms (outputs)

• Coating: Conformal coating (suffix D) – medium-thickness acrylic with improved humidity and mild chemical resistance

• Temp Range: -15°C to +70°C (extended, enabled by D coating)

• Mounting: 6U VME Eurocard, single-slot

• Diagnostics: Enhanced onboard with per-channel LED status, signal noise detection, drift monitoring, and calibration alerts (C1 feature)

Advantages & Features

• Hybrid I/O capability – 4 analog inputs + 4 analog outputs on a single board, saving cabinet space and reducing overall board count

• C1 firmware offers improved accuracy (±0.07%), faster update (60ms), adaptive 50/60Hz filtering, and enhanced diagnostics including drift monitoring – a significant upgrade over B1

• Higher isolation (2500V) protects against ground loops and transient surges (upgraded from 1500V)

• Versatile signal support – inputs and outputs independently configurable for 4–20mA or 0–10V, compatible with most industrial transmitters and actuators

• Isolated channels reduce ground loop interference and protect the backplane from field wiring faults

• D-grade coating provides superior moisture resistance and mild chemical protection – suitable for environments with frequent humidity or light chemical exposure

• Extended temperature range (-15°C to +70°C) offers more flexibility than B variants

• Front-panel LEDs for per-channel status including drift alerts and calibration reminders

• Compatible with Mark IV backplanes and some VIe systems (with adapter)

Application Cases

• Turbine inlet guide vane (IGV) position control – reading 4–20mA position feedback and outputting 4–20mA to positioner/actuator with drift monitoring in humid environments

• Fuel gas pressure control – reading pressure transmitter and outputting to control valve positioner in plants with occasional moisture and noise

• Steam pressure and flow control – reading transmitters and outputting to throttle or extraction valve positioners requiring high accuracy

• Lube oil pressure and temperature control – reading sensors and outputting to cooling water or bypass valves in semi-outdoor enclosures

• Retrofit projects upgrading from B1 firmware for better accuracy, speed, isolation, and environmental protection

Competitor Comparison

• vs. DS3800HIOA1B1D (B1/D variant): Better accuracy (±0.07% vs. ±0.08%), faster update (60ms vs. 80ms), higher isolation (2500V vs. 1500V), adaptive filtering, and drift monitoring – significant upgrade with C1 firmware

• vs. DS3800HIOA1B1B (B1/B variant): Improved across all parameters – accuracy, speed, isolation, C1 diagnostics, D coating, and wider temp range

• vs. DS3800HIOA (standard A variant): Substantial improvements in accuracy, speed, isolation, diagnostics, coating, and temperature range

• vs. DS3800HIMA1C1D (input-only C1/D): HIOA1C1D offers outputs in addition to inputs, but fewer total channels (4 in/4 out vs. 8 differential inputs on HIMA)

• vs. DS3800HSCB (high-speed analog): HIOA is optimized for accuracy and diagnostics (60ms); HSCB offers faster scanning for dynamic signals

• vs. ABB TB711 : ABB offers higher resolution (14-bit), but HIOA1C1D offers hybrid I/O, higher isolation (2500V vs. 1500V), adaptive filtering, and drift monitoring

• vs. Siemens 7MH410 : Siemens offers HART protocol support, but GE offers hybrid I/O, higher isolation, and C1 diagnostics

• vs. Woodward 8440-2015 : Woodward offers more flexible configuration software, but GE HIOA provides a compact hybrid solution with superior coating and isolation

• vs. Honeywell 51304638 : Honeywell offers better long-term stability (±0.05%), but GE HIOA1C1D combines inputs and outputs with C1 diagnostics, higher isolation, and D coating

Selection Suggestions

• Critical: Confirm input and output signal types (4–20mA or 0–10V) before installation – jumpers must match your transmitters and actuators

• Verify your backplane provides both +5V and +15V – this board requires both rails

• Assess if C1’s drift monitoring and calibration alerts are beneficial – particularly valuable for critical turbine control loops where accuracy and stability are essential

• Evaluate environmental conditions – D coating is suitable for frequent humidity and mild chemical exposure; choose G/H for more demanding conditions

• Order mating front connector (p/n may vary – confirm with GE)

• For critical applications, purchase with a calibration certificate and 12-month warranty

Precautions

• Critical: Do not exceed 30mA or ±30V on input channels – overvoltage may damage the ADC and isolation circuits

• Critical: Do not short-circuit output channels – outputs are protected but prolonged shorts may cause damage

• Critical: Use shielded twisted-pair cables for all analog inputs and outputs to avoid EMI – C1’s adaptive filtering helps but is not a substitute for good wiring practices

• Critical: C1 drift monitoring requires a stable reference – ensure the board is properly warmed up (30–45 minutes) before relying on diagnostics

• Ensure field power supply (+24V DC) for loop-powered transmitters is stable and within specifications (if used)

• C1 firmware offers adaptive 50/60Hz filtering – configure jumpers correctly for your region’s line frequency

• D coating provides good protection but is not suitable for direct salt spray, heavy chemical exposure, or continuous condensation – upgrade to G/H for those conditions

• Store in ESD-safe packaging – edge connector is static-sensitive

• Periodically verify input and output calibration every 2 years against a certified reference

• Do not hot-swap – Mark IV backplanes require power-off for insertion/removal

• If replacing separate input and output boards, verify wiring and pinout compatibility – HIOA may differ from HIMA/HOMB series in pin assignments