Chapter 1 Quick Start
Output Checkout
19
1
Current Output Checkout
The following steps check basic current functions with a short across the
power supply’s output.
1 Turn on the power supply.
Make sure that the output is disabled. The
OFF annunciator is on
2 Connect a short across (+) and (-) output terminals with an insulated
test lead.
Use a wire size sufficient to handle the maximum current (See "
Table 2-1 Wire
Rating
" on page 34 in chapter 2).
3 Enable the output.
The
CV or CC annunciator turns on depending on the resistance of the test
lead. Notice that the display is in the meter mode.
4 Adjust the voltage limit value to 1.0 volt.
Set the display to the limit mode (the
Limit annunciator will be flashing).
Adjust the voltage limit to 1.0 volt to assure CC operation. The
CC annunciator
will turn on. To go back to normal mode, press the key again or let the
display time out after several seconds.
5 Set the knob to the current control to check that the front-panel
ammeter properly responds to knob control.
Turn the knob clockwise or counter clockwise when the display is in the meter
mode (the
Limit annunciator is off). Check that the ammeter responds to knob
control and the voltmeter indicates nearly zero (the voltmeter will show the
voltage drop caused by the test lead). The flashing digit can be adjusted by
turning the knob.
6 Ensure that the current can be adjusted from zero to the full rated
value.
7 Turn off the power supply and remove the short from the output
terminals.
1
You can use the resolution selection keys to move the flashing digit to the
right or left when setting the current.
Power
On/Off
Output
Display
Limit
Display
Limit
Current
Voltage
1
