the current limit to the maximum value allowed by the power supply.
1) With no load connected, turn all 4 knobs to minimum position. Turn the power supply on.
Caution:
For models with air switch, the green On/Off button enables/disables the output. Turn on the air
switch first before turning this button on; conversely, turn this button off before switching off the air switch in the back.
For the models without air switch, this button turns the power on and off.
2) Connect a resistive load b and – terminals, or temporarily short the
+
and – terminals of the power supply
with a test lead.
3) Adjust the COARSE voltage knob (knob 13) slightly up for the CC indicator to turn red.
4)
Adjust the CURRENT control (knobs 3 & 4) to reach the desired current level, repeat 3) if needed.
5) The current limit has now been preset. Do not change the CURRENT knobs (3&4) if you want to keep the same
current limit, or mark the positions of knobs 3&4 so you can return to the same level.
6) Turn the voltage knobs down so the current meter reads less than 1A, then remove the load between the
( + )
and
( - )
terminals and go to section 3.3(1) for CV operation procedures.
3-5 Setting Over-voltage Protection Limit
The power supply has over-voltage protection with adjustable protection limit.
Note:
For most applications, we recommend leaving the OV limit at maximum (factory default setting), which
is typically 2V above the maximum rated voltage output. To return to factory default, turn the OV adjustment screw to
the maximum position clockwise (11). You must do so before turning the power supply on.
