User's Manual Part 1

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menu item Settings Interlock. When it is enabled, the status bar shows the lock symbol (see Figure 3),
which is close if the interlock chain is closed (no alarm) or open if it is open (alarm).
- Firmware Release
The menu entry Settings Firmware Release allows to display the firmware version number and the
hardware release of the amplifier.
- Serial Number
The menu entry Settings Serial Number allows to display the serial number of the apparatus.