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Operation
Operation
General operation – all models
Switching on
Turn the left hand rotary knob away from the off position.
The instrument will perform internal self tests then display the appropriate test screen, depending on the position
of the function knobs.
Switching off
Turn the primary function (left hand rotary) knob to the OFF position.
The instrument will automatically turn itself off after 20 minutes* of inactivity. Press any button or turn either of
the rotary knobs to turn back on.
* 2 minute option in Setup, refer to “Setup options” on page 26.
Backlight
Press the backlight button. The backlight will operate for 20 seconds.
Test buttons
The test buttons, or , are duplicated on the left and right of the unit. Both buttons perform the same
function except, when the is displayed, in this case the right hand buttons perform a scrolling function. The
left RED button also performs bluetooth, storage and lock functions.
Test button lock
To lock the test button, hold down either of the RED test lock buttons with the L symbol, whilst holding down
the test button. If is displayed, the right hand buttons perform a scrolling function.
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