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Achieve high accuracy with correct installation

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The rule is simple as Four-Terminal sensing (4T Sensing): to separate current-carrying path and voltage sensing probing.

For Sentry battery monitor installation, keep in mind that the sensing O-rings have to be in close contact with connection bar without any washer in between. (O-ring shall not be placed between connection bar and battery post. That will compromise battery bank connectivity).

Stainless steel bolt and washer have high resistance. If installed as “RED”, battery#1, #6/#7 and #12 will have wrong measurement, which will lead to wrong battery health “SOH” estimation and trigger alarms.

Enjoy your fine work!