Model 2231A Triple-channel DC Power Supply Reference Manual Section 3: General operation
077100401/September 2014
3-11
Checking the firmware version
1. Push
Menu
.
2. Use the arrow keys and navigate to
System Info
and then push
Enter
.
3. Use the arrow keys and navigate to
Main
. The numbers you see after
Main
and
Aux
are the
main firmware version and auxiliary firmware version, respectively.
4. Push
Esc
to exit the menu.
Checking the calibrate date
1. Push
Menu
.
2. Use the arrow keys and navigate to
System Info
and then push
Enter
.
3. Use the arrow keys and navigate to calibrate date (for example: 2014-04-28 16:06:58).
4. Push
Esc
to exit the menu.
Overtemperature protection (OTP)
If the internal temperature of the power supply exceeds 85 ºC, the instrument will turn the power off
automatically. You can also hear a beeper sound and the display will show
Over temperature
.