Switching off the device
The device has an "auto power off" function.
3 If the device is not used for some time, it auto-
matically switches off:
— The device enters "Stand-by mode". "SCAN"
appears in the display.
— The seconds until switching off are counted
down in the display.
Self-test
Note
If one or more functions fail in the self-
test, do not use the device any more.
Arrange for the device to be checked
by specialist technicians.
3 When you switch the device on for the first time
(if the device was fully switched off, e.g. after
a battery change), all indicators in the LCD
display come on briefly.
3 The device switches to SCAN mode. A number count-
ing down indicates the seconds until switching off.
To ensure the operability of the device, hold the test
■
probes against each other before and after use:
— If the LCD does not light up or the display is
very faint, replace the batteries.
— If the LCD display does not illuminate in spite
of new batteries, protect the device against
incorrect use.
Operation
Note
Never use the ELV LED for measure-
ment purposes.
Testing DC voltage (fig. I)
Place the test probes [1] and [5] against a DC
■
voltage that is within the nominal voltage range.
3 The voltage is indicated in volts.
3 "DC" appears in the display.
3 If a negative voltage is present at test probe L2,
then a "-" is displayed in front of the value (minus).
3 For voltages greater than approximately 110 V/
DC, the life-threatening voltage is indicated by
the ELV LED lighting up in red. Additionally the
device vibrates.
3 If the batteries are fully discharged and a
voltage is present, a warning triangle is output
in the display.
14
Testing AC voltage (TRMS) (fig. I)
Place the test probes [1] and [5] across a DC
■
voltage that is within the nominal voltage range.
3 The voltage is indicated in volts.
3 "AC" appears in the display and the mains
frequency is displayed.
3 For voltages greater than approximately 45 V/
AC, the life-threatening voltage is indicated by the
red ELV LED. Additionally the device vibrates.
3 If the batteries are fully discharged and a
voltage is present, a warning triangle is output
in the display.
DATA HOLD function (fig. I)
To save a test value on the display, briefly press
■
the "L.H" button [7] (data storage).
3 The symbol "D.H." on the display indicates that
the DATA HOLD function is switched on.
To switch off the DATA HOLD function, briefly
■
press the "L.H." button again.
Line conductor test (fig. I)
Note
Protective clothing and insulating loca-
tions can influence the function.
Touch a conductor with test probe L2 [5].
■
3 If a phase voltage of at least 100 V~ exists
(pole > 100 V/AC), "<L" appears in the display
as well as a warning triangle and a red flashing
LED. Additionally the device vibrates.
When determining the phase conductor, the percep-
tibility of the display may be impaired, e.g. by:
• Insulating devices for protection against
accidental direct contact
• In unfavourable positions, e.g. on wooden
ladders
• Insulating floor coverings
• A non-earthed voltage
• Unfavourable light conditions
For your safety check both terminals for an
■
absence of voltage.