Model 2231A Triple-channel DC Power Supply Reference Manual Section 3: General operation
077100401/September 2014 3-5
6. Push Enter.
The default settings for the menu selections are as shown below.
Item
Description
Enable Channels
Enable CH1
Enable CH2
Enable CH3
Max V CH1
Off
Max V CH2
Off
Max V CH3
Off
Timer CH1
Off
Timer CH2
Off
Timer CH3
Off
Track CH1/CH2
Track Off
Combine CH1+CH2
Combine Off
Off
Save Last
On
Button beep
Off
Knob Lock
Off
Enable Channels
You can enable or disable each output channel using the menu settings. If a channel is disabled, it will
remain off after the Output On/Off button is turned on. The default setting is to have all channels
enabled.
Protection Settings
The protection settings allow you to set the max voltage, the output timers and the front panel button
lock for all of the channels.
Set the maximum voltage
This control determines the maximum voltage that you can set using the V-set control. This can help
prevent accidental overvoltage from being applied to sensitive loads.
To set the maximum voltage, follow these steps:
1. Push Menu.
2. Push the down arrow button to select Protection Settings.
3. Push Enter. Max Volt Set should appear on the display.
4. Push Enter. A list of Max V settings for each channel will appear.
5. Use the up and down arrow keys to select the correct channel and push Enter to confirm.
6. Push the down arrow button to select On.
7. Use the numeric buttons or the up/down buttons or the rotary knob to adjust the voltage value.
The value must be less than the rated voltage of the power supply.
8. Push Enter.
9. Push the Esc button to exit the menu.
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