PSM-SERIES PROGRAMMABLE POWER SUPPLY 
USER MANUAL 
 
  
 
10
27. 
FL DIMMER 
Adjust the intensity of VFD. After pressing 
[SHIFT], can press [FL DIMMER] continually 
until the required brightness is reached. Then 
press again the [SHIFT] to end the setting. 
28. 
 
Set beeper by pressing [SHIFT][
] to turn 
ON/OFF the buzzer.
 
29. 
OUTPUT  Turn on or off output by pressing the knob. 
30. 
DISPLAY LIMIT 
Switch over the voltage and current mode by 
pressing [DISPLAY LIMIT]. 
The setting value will be displayed, press again 
[DISPLAY LIMIT] or wait a few seconds to 
return to the previous status. 
4-2. Rear Panel brief 
1.  AC Power Socket 
AC power input terminal. 
2. AC Select Switch 
Switch Voltage to 100V, 120V, 220V or 230V, 
50/60Hz. 
3. Cooling Fan 
A cooling fan. 
4. Interface 
GPIB or RS-232 communication interface. 
5. Output Terminal 
The output terminals of rear panel connected 
with case, including output sampling terminal
and ground terminal. 
 
PSM-SERIES PROGRAMMABLE POWER SUPPLY 
USER MANUAL 
 
  
 
11
4-3. Display brief 
1. Adrs 
Set the power sup
ly to the address of Listen or 
Talk by using the interface card. 
2.  Rmt  Set the power supply to Remote Control mode. 
3. ERROR 
The Error message appears when the command 
from the Remote Controlled Interface is in error. 
4.  SHIFT  Select the second level function. 
5.  AUTO  Set the power supply to Auto mode. 
6. 
8V, 15V, 20V, 
30V, 60V 
The output ranges of power supply. 
7. OVP 
When the indicator lights up without blinking, 
means the OVP function is on. When the Over 
Voltage Protection function is triggered, the 
indicator will be changed to blinking status, and 
the message “OVP TRIPPED” will be displayed. 
Now clear the OVP function. When the light of 
indicator is off, means the OVP function is off. 
8. OCP 
When the indicator lights up without blinking, 
means the OCP function is on. When the Over 
Current Protection function is triggered, the 
indicator will be changed to blinking status, and 
the message “OCP TRIPPED” will be displayed. 
ow clear the OCP function. When the light of 
indicator is off, means the OCP function is off.