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SenseCalc

AI Channel Loading

Burden drop plus supply current with verdict.

Inputs

Card and loops

Active 4-20 mA inputs.

Per-channel input resistor.

Loop supply.

Transmitter minimum.

Per-channel worst case.

Result

Margin per channel (V)
10.50
Supply current (mA)
176.0
Calculation details
Burden drop (V)
5.50
PASS (1=yes)
1

Verify

Check before relying.

Burden times channels loads the supply.

  • Per-channel burden from the AI manual
  • Total current inside the PSU rating
  • Common-mode within the card limit
This calculator is a first-pass screening tool. Verify nameplate data, wiring, module configuration, and calibrator readings before acting.

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