TESTO 540 Mode D'emploi page 11

Short manual testo 540
Basic settings
Instrument off > press and hold
confirm with
Auto off function: OFF, ON
Switching the instrument on
Press .
Switching the display light on (for 10s)
Instrument on > press
Select display size
Instrument on > select with
lux, ftc
Select display mode
Instrument on > select with
Current reading > Hold: Readings are held > Max: Maximum values > Min: Minimum
values
Switching the instrument off:
Instrument on >press and hold
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Short manual testo 540 11

Protection cap: Park position

Light sensor

Display

Control keys

Battery compartment (on rear)
2s > select with
2s.
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