Instruction Manual

8
1. Power switch
Turns the power supply ON-OFF. The switch will be
lighted up when the unit is ON.
2. DC Voltmeter
Indicates the present output voltage. (Analog for
162A, 1622A, 1626A and 3-digit LEDS for 1621A,
1623A, and 1627A series)
3. DC Ammeter
Indicates the present output current. (Analog for
162A, 1622A, 1626A and 3-digit LEDS for 1621A,
1623A, and 1627A series)
4. Constant current mode (C.C.) indicator
Indicates the power supply is operating in constant
current mode.
5. Constant voltage mode (C.V.) indicator
Indicates the power supply is operating in constant
voltage mode.
6. Voltage coarse adjust
Coarse adjust knob for the output voltage in voltage
mode.
7. Voltage fine adjust
Fine adjust knob for the output voltage in voltage mode.
8. Current coarse adjust
Coarse adjust knob for current limiting point and current
value in constant current mode.
9. Current fine adjust
Fine adjust knob for current limiting point and current
value in constant current mode.
10. Output terminal positive (+)
Terminal for tapping of positive (+) output.
11. Output terminal negative (–)
Terminal for tapping of negative (–) output.
12. Ground terminal (GND)
Chassis ground terminal. Normally, this is connected to
either (+) or (–) terminal depend on application.