GE DS3826AS1D06AA

Key Parameters

• Channels: 8 isolated analog inputs

• Input Types: 4–20 mA, 0–10 V, ±10 V (software-configurable per channel)

• Resolution: 16-bit ADC

• Accuracy: ±0.1% of full scale (25°C); ±0.3% over –40°C to +70°C

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

• Sampling Rate: Up to 500 Hz per channel (high-speed mode; filtering disabled)

• EMC/Noise Rejection: CMRR > 100 dB, built-in 50/60 Hz digital filtering

• Diagnostics: Open-circuit detection, short-circuit detection, over-range/under-range, signal-loss detection, per-channel LED status

• Isolation: 1500 V RMS (field-to-backplane); 500 V RMS between channels (per-channel isolation)

• Operating Temperature: –40°C to +70°C

• Terminal Type: Screw-type – per suffix “D06AA”

• Power: 24 V DC backplane power, ≤5 W

• Dimensions: Standard double-width Eurocard form factor

Advantages

• High channel density – 8 isolated channels in a single module; saves rack space.

• Software-configurable per channel – each channel independently set for current or voltage; eliminates hardware jumpers.

• Per-channel isolation – 500 V between channels; prevents ground loops, cross-channel interference, and channel-to-channel faults.

• High-speed 500 Hz sampling – captures fast-changing process signals for dynamic control applications.

• 16-bit resolution – provides precise measurement fidelity.

• Open/short detection – detects broken wires or sensor shorts instantly.

• Enhanced diagnostics – includes signal-loss detection for proactive maintenance.

• Hot-swappable – replace without rack power-down.

• Wide measurement range – supports standard industrial signal types.

• Optical isolation – protects backplane from field transients.

Applications

• Oil & gas pipelines – pressure, flow, and temperature monitoring with long cable runs

• Chemical processing – reactor and tank level/pressure monitoring

• Power generation – turbine and generator monitoring with high-speed sampling

• Water/wastewater – pump station and treatment plant monitoring

• Pharmaceutical manufacturing – critical process variable monitoring

• Food processing – temperature, pressure, and flow monitoring

• HVAC – building-wide analog signal monitoring

• Mining – equipment and process monitoring

Competitor Comparison

The DS3826AS1D06AA is the high-density, per-channel isolated analog input module – offering 8 channels with 16-bit resolution, 500 Hz sampling, and full per-channel isolation. Compared to standard 8-channel modules, it provides superior isolation, higher resolution, and faster sampling – essential for critical process control applications. For demanding analog input applications requiring high channel density, isolation, and speed, the DS3826AS1D06AA delivers the best-in-class solution.

Selection Tips

• Choose DS3826AS1D06AA when you need high-density analog inputs (8 channels) with per-channel isolation, high-speed sampling (500 Hz), and software-configurable input types.

• Ideal for oil & gas, chemical processing, power generation, and water/wastewater applications.

• Verify the input type for each channel – software-configurable for 4–20 mA, 0–10 V, or ±10 V.

• Confirm the terminal configuration (D06AA) matches your panel wiring requirements.

• For maximum speed (500 Hz), disable input filtering – enabling 50/60 Hz rejection reduces sampling rate.

• Ensure your PLC/DCS can handle the data throughput from DS3826AS1D06AA at 500 Hz.

• Not suitable for thermocouple or RTD sensors – use dedicated modules for those sensor types.

Precautions

• Sampling rate vs. filtering: Maximum 500 Hz achieved with filtering disabled. Enable filtering only if noise rejection is required – it will reduce the sampling rate.

• Isolated grounds: Do not tie the isolated commons of different channels together – this defeats the isolation and can create ground loops. The DS3826AS1D06AA maintains 500 V isolation between channels only when commons are kept separate.

• Wiring: Use shielded twisted-pair cables for analog inputs, especially at high sampling rates. Ground shield at module end only.

• Input overload: Do not exceed the input range (max ±30 V or 50 mA) – exceeding may damage the input circuitry.

• Data throughput: 500 Hz × 8 channels × 16-bit data requires significant communication bandwidth – ensure your PLC/DCS can process the data rate.

• Power sequencing: Apply backplane power before field power.

• Calibration: Perform periodic calibration using precision sources to maintain accuracy – high-speed operation may accelerate drift.

• Spare: Keep one spare DS3826AS1D06AA for critical high-channel-count loops – the high-density, isolated variant may have longer lead times.