Operation Manual

Page 11 of 11
Backlight & 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.