Extech Instruments DCP42 Manual

A SERVICE OF

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DCP42‐en‐GB_V1.512/14

13

6.5RemoteControlOperation

Therearetwomethodsforremotelycontrollingcurrentandvoltageadjustments.Currentmust

becontrolledforbothmethodsotherwisetheunitwilldefaulttoCCmode.

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6.5.1REMOTECONTROL–METHOD1:UsingtwoexternalDCvoltagesources

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RemoteSocketPinAssignmentforexternalvariablevoltagesource

PIN FUNCTIONS REMARKS

1 InternalDC+5V Lowerthan50mA

2 Voltageadjust 0to5V

3 Currentadjust 0to5V

4 Ground

5 OutputOFF Shorttoground

6 N.A.

7 N.A.

8 N.A.



Checktheoutputvoltagerangeofthepowersupplybyvaryingtheexternalvoltagesource.

Shortcircuitthemainoutputwith14AWGwiretochecktheCCsettingonthe displaywhile

varyingtheexternalvoltagesource.



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6.5.2REMOTECONTROL–METHOD2:Usingtwo0to5KOhm

variableresistors

RemoteSocketPinAssignmentforexternalvariableresistor

PIN FUNCTIONS REMARKS

1 InternalDC+5V Oneendofresistor

2 Voltageadjust Variablelegofresistor

3 Currentadjust Variablelegofresistor

4 Ground Otherendofresistor

5 OutputOFF Shorttoground

6 N.A.

7 N.A.

8 N.A.



Checktheoutputvoltagerangeofthepowersupplybyadjustingthe5Kohmvariableresistor.

Shortcircuitthemainoutputwith14AWGwiretochecktheCCsettingonthe displaywhile

adjustingthevariableresistor.