2.2.2.3 When the two outputs are in series, the output voltage is controlled by master output, but
current adjustment of two outputs is still independent. Therefore, attention should be paid to the
position of the C.C. adjustment (6). For example, knob (6) is at the position of counterclockwise 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 (6) should be rotated clockwise to Max. when the
two output are in series.
2.2.2.4 By series connection, if 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.
2.2.3 Parallel using of the two adjustable outputs
2.2.3.1 Press in switch (13) (
position) as well as switch (14) (
position), at this time, the two
outputs are in parallel, adjust voltage adjustment (23) of master output the voltage of two ways keep
same, and slave output C.C. indicator (8) lights on.
2.2.3.2 When the two outputs are in parallel, the C.C. adjustment (6) of slave output does not work.
When used as C.C. Supply, simply adjust the C.C. adjustment (22) of master output, at this time
output current of both master and slave output are controlled by it and are same, output current is up
to 6A or 10A.
2.2.3.3 While the two outputs in parallel, proper leads corresponding to output power be used to short
reliably the two positive terminals and the two negative terminals of master & slave output separately,
so as to make load connected reliably with the two parallel outputs. If the load is only connected to one
of the output terminal, unbalance may be caused to current of the two outputs, this may also damage
the series/parallel switch.
2.3 The digital display is in 3-digit. If you need more accurate indication, please use more precise
measuring instrument to calibrate it in outer circuit.
2.4 Cautions
2.4.1 The unit has perfect protection function, 5V output has reliable protection for current-limiting and
short circuit. The two adjustable outputs have current-limiting protection. As there is controlling circuit
for regulating transistor's power loss in the circuit, when short circuit occurs, power loss on large
power transistor is not very high, it can not cause any damage to the unit. But there is still power loss
when short circuit, in order to reduce aging and energy consumption, so this situation should be find
as soon as possible and turn off power, then exclude the faults.
2.4.2 After operating, put the unit in a dry place of good ventilation, and keep it clean. If it is not in use
for a long period, pull off the power supply plug for storage.
2.4.3 For maintenance, input voltage must be cut off.
2.4.4 The faults may be caused by the improper operation or abnormal operating ambient and
component failure inside the unit. When the faults occur, the output voltage maybe exceed max. Rated
output voltage. TAKE CARE WHEN OPERATION AND AVOID UNNECESSARY DAMAGE OF LOAD.
2.4.5 For safety operation, the 3-pin ground terminal of power cord must be grounded securely.
3. Accessories
3.1 Instruction manual 1 copy
