TESTO 6681 Instruction Manual page 4

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Steps are numbered if a certain sequence of actions must
be followed, e.g.:
1
Loosen and remove housing screws.
2
Remove the upper part of housing.
A step is not numbered if there are no further steps or if the
step is optional, e.g.:
▪
Insert probe connector into socket of testo 6681 until
it engages.
Example entries are in inverted commas, e.g.:
The value "0" results in ....
Elements of the program interface or instrument display,
e.g.:
The instrument designation appears in the
instrument/parameter file list.
Select Main Menu Channel 1 and confirm with SET.
Functions/paths within a menu, e.g.:
Start > All Programmes > Testo > Transmitter Software.
Buttons which start an action, e.g.:
Confirm the software key with [OK].
Keys on the instrument or keypad, e.g.:
Press ESC.