EXCELL PRECISION CO., LTD.

(4) Power Source Illustration

The relay circuit board can be supplied either by the external AC power or internal DC power.

Relay powered by external AC power

PIN4 and PIN5 are connected with AC power source; J1 and J2 OPEN

Relay powered by internal DC power

No power source input to PIN4 and PIN5; J1 and J2 SHORT

(5) Connection Setting

OK, High, Low can be set at NO (normal open status) or NC (normal close status) respectively.

OKHighLow at NO ( normal open status) default setting

OKHighLow at NC( normal close status)

Please use a knife to cut the J3, J4 and J5 not connect (open) and solder the J6, J7 and J8 connected.

V1.1

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Excell Precision WEIGHING SCALES manual Power Source Illustration, Connection Setting