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GE DS3800HAIC1A1A
Product Name: GE Speedtronic Mark IV High-Speed Analog Current Input Board (HAIC)
Product Introduction: The GE DS3800HAIC1A1A is a Mark IV regulator-class analog input board that feeds turbine control logic with 4–20 mA and 0–5 V process values under TMR architecture.
Detailed content
Technical Specifications:
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Channels: Multi-channel (8 typical in HAIC class)
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Inputs: 0–5 V, 1–5 V, 0–20 mA, 4–20 mA (jumper set)
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ADC: 12-bit
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Impedance: ≥100 kΩ voltage, ≤250 Ω current
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Calibration: 2 trim pots, 9 jumpers
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Power: +5 V logic, +24 V field
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Size: 152 × 229 × 38 mm (3U)
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Temp: -20 °C to +70 °CFunctional Features: Onboard filtering and amplification; channel isolation; compatible with Mark IV TMR voting; test points for live diagnostics.Materials & Structure: Glass-epoxy 3U card, metal stiffener, gold edge connector, trim-pot accessible from component side.Working Principle: Field current develops voltage on 250 Ω burden; op-amp conditions signal; 12-bit ADC converts; value placed on Mark IV backplane.Installation Requirements: Insert in Mark IV analog slot; use extractor handle; confirm jumper map matches wiring sheet.Precautions: Trim pots drift if over-adjusted; do not clean with solvent on conformal coat; verify +24 V polarity before power-up.
