Remote Control Operation; Remote Control - Method 1: Using Two External Dc Voltage Sources; Remote Control - Method 2: Using Two 0 To 5K Ohm Variable Resistors - Extech Instruments DCP42 User Manual

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.
6.5.1 REMOTE CONTROL – METHOD 1: Using two external DC voltage sources
Remote Socket Pin Assignment for external variable voltage source
PIN
1
2
3
4
5
6
7
8
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.
6.5.2 REMOTE CONTROL – METHOD 2: Using two 0 to 5K Ohm variable resistors
Remote Socket Pin Assignment for external variable resistor
PIN
1
2
3
4
5
6
7
8
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.
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FUNCTIONS
Internal DC +5V
Voltage adjust
Current adjust
Ground
Output OFF
N.A.
N.A.
N.A.
FUNCTIONS
Internal DC +5V
Voltage adjust
Current adjust
Ground
Output OFF
N.A.
N.A.
N.A.
13
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REMARKS
Lower than 50mA
0 to 5V
0 to 5V
Short to ground
REMARKS
One end of resistor
Variable leg of resistor
Variable leg of resistor
Other end of resistor
Short to ground
DCP42-EU-EN V1.2 9/13