2026-10-10How to judge analog‑output sensor health when no signal output

Measure current / voltage output with multimeter.

Take BWM428 as example: when placed horizontally, current output on white / purple wire is 12 mA; 4‑20 mA corresponds to measuring range ±90°. Also check cable continuity. If no reading is obtained, analog output module may be damaged; send back for inspection.


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