HART Loop Load Check
230-1100 ohm window for HART communication.
Result
Total loop resistance (ohm)
250.0
HART OK (1=yes)
1
Calculation details
Below HART window (1=yes)
0
Above HART window (1=yes)
0
Headroom above 230 (ohm)
20.0
Headroom below 1100 (ohm)
850.0
Formula
Calculation logicVerify
Check before relying.
HART talks across 230-1100 ohm.
- Total series resistance measured, not summed
- Below 230: parallel 250 ohm at the communicator
- Above 1100: find the extra burden
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Workspace
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