11
Backlight and Hold
Backlight key. Press the backlight key to switch the backlight on. It
will switch off after one minute with no key press when activated,
or it may be switched off by pressing the key again
Hold key. When the rotary switch is set to cursor 1, cursor 2, or
Auto, pressing the hold key will place an image of the current trace
in grey on the display. This allows comparisons to be made between
two cables or intermittent faults to be seen
