3.2. Operating method
Press output-button (24.) to enable or disable the outputs. If is also possible to turn off the outputs
easily and the connected test circuits are quickly without tension.
3.2.1. Independence use of two adjustable output.
1.
Set (7.) and (9.) switch to spring out position.
2.
When the adjustable output is used as CV output, first should rotate clockwise the CC
adjustment (2.) and (17.) to maximum, then turn on power switch (13.), adjust CV
adjustment (4.) and (14.) till output voltage reach required voltage value, at this time, the
CC state indicator (1.) and (11.) go out the CV state indicator (3.) and (12.) light on.
3.
Used as CC output, after turning on power switch (13), first rotate clockwise the CV
adjustment (4.) and (14.) to maximum, while rotate counter clockwise the CC adjustment
(2.) and (17.) to minimum, connect the required load, again adjust clockwise adjustment
(2.) and (17.) till output current reach the required current value. At this time, the CV state
indicator (3.) and (12.) go out and the CC state indicator (1.) and (11.) light on.
4.
Used as the CV output, in general the CC adjustment (2.) and (17.) should be set to
maximum, but for this unit, the current-limiting protection point can also be set arbitrarily.
Setting procedure: turn on power, rotate counter clockwise the CC adjustment (2.) and
(17.) to minimum, then make the positive and negative output terminal in short connection
and rotate clockwise the CC adjustment (2.) and (17.) till output current equal to the
required current-limiting protection point, so the current-limiting protection point is well set.
3.2.2. Series using of the two adjustable outputs.
1.
Switch (9.) is set to spring out and press in switch (7.). At this time, turn the master voltage
adjustment (14.) and the slave out voltage tracks, strictly the master output voltage, and
the output voltage can be up to double of independent’s maximum voltage, 60 V (voltage
between terminal (18.) and (23.)).
2.
Before the series connecting, it must be examined if the negative terminal of both master
and slave output are connected to case grounded terminal, if they are, must be
disconnected, otherwise, short-circuit will be caused in the slave output when the two
outputs are connected in series.
3.
When the two outputs are in series, the voltage is controlled by master output, but current
adjustment to two outputs is still independent. Therefore, attention should be paid to the
position of the CC adjustment (2.) and (17.). For example, knob (2.) is at the position of
counter clockwise to end or current of slave output excesses current-limiting protection
point, at this time, the voltage of slave output will not track the voltage of master. So knob
(2.) should be rotated clockwise to maximum then the two output are in series.
4.
By series connection, it there is power output, proper leads corresponding to output power
should be used to short connect the negative terminal of master output with positive
terminal of slave output reliably. Since it is shorted by a switch inside the unit, current will
pass on the shorted switch when there is power output. This will affect the reliability of the
unit.
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