Global Specialties PB-507 - Manual - Manual (Page 26)

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While the jumper is applied, the device is unsecured. Enter a new security
code as described in section Secure the PB-507 Trainer, and record the
security code in a safe location.
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Turn off the trainer, remove the jumper, and remove power cord.
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Reassemble instrument.
Secure the PB-507 Trainer
Select the Security option from the Configuration menu. Press the “Yes” soft key
when you are asked “You want to enter the security code to secure the trainer?”.
The steps required to secure PB-507 are identical to those described at section
Unsecure the PB-507 Trainer.
Change the security code
To change the security code, you must unsecure the device. Then you can enter
a new security code.
7.1.4 Lock or Unlock front-panel keys
You can lock or unlock the front panel keys by Service  Front keys option.
Locking the front-panel keys will disable all buttons and encoders on the PB-507
front-panel, excepting the soft keys. When the front-panel is locked, the modules
of the PB-507 Trainer can be controlled only through remote interface.
7.1.5 Page scrolling
This feature allows you to navigate between the panels (Function generator,
Pulse generator, Frequency counter, DC power supply) in three ways:
Manual: with this setting you can change the active panel using the soft keys
Auto: if a button or an encoder from a module other than the one displayed is
pressed, the panel of that module will be displayed for 3 seconds, and then PB-
507 will return to the initial panel
Jump: if a button or an encoder from a module other than the one displayed is
pressed, the panel of that module will be displayed for 3 seconds, and PB-507
will not return to the initial panel
Note: If power-on option is set to Last saved state, the active panel is saved in
the non-volatile memory. The saved panel will be loaded at next power-on.
If power-on option is set to Default config, the Function generator panel is
loaded at next power on.
7.1.6 Factory default configuration
You can reset the PB-507 Trainer to its factory default state by selecting the
Load default config option. Press the “Yes” soft key when you are asked “You
want to load the factory default configuration?”. The info message “Default
configuration loaded” will appear on the display when the factory default
configuration has been restored.