4
Disconnect the clamp meter from the measuring circuit before
you open it, and see section "18. Maintenance".
Automatic TURN-OFF
The meter turns off automatically, when the measured value remains
constant (variations of the measured value < + 2digits) for about 10
minutes and when neither a pushbutton nor the function selector switch is
operated during that time.
How to prevent automatic TURN-OFF
In order to prevent automatic "TURN OFF" select "CONTINUOUSLY
ON" mode. For this, press yellow multi-function pushbutton (5) and the
"ON/OFF" pushbutton (2)together. The function "CONTINUOUSLY ON"
is shown on the LCD(1) by the symbol
(8).
Turning the multimeter OFF
Press the "ON/OFF"pushbutton (2).
4. Function and range selection
ON
4.1 Autoranging
The multimeters feature autoranging for all measuring ranges with the
exception of the 30mV
,300mV
ranges. Autoranging is
automatically selected after switching the multimeter ON. According
to the measured quantity applied, the multimeter automatically selects
the measuring range which gives the best resolution. When switching to
The meter switches automatically to:
the next highe range
r
at + (3099 1digit)
the next lower range
at + (240/280 digits-1digit)
4.2 Manual range selection
You can switch OFF autoranging and select the ranges manually
according to the table on the following page.
Manual mode is switched OFF when push button AUTO/MAN is pressed (4)
for approximately 1s, when the function selector switch (6) is operated,
or when the meter is turned OFF and ON again.
When switching back to autoranging from 30mV
or 300mV
ranges,
3 V
range is automatically selected.
frequency measurement and ratio measurement the previously selected
voltage measuring range is maintained.
Switching the meter "ON"
Note:
Electric discharges and high-frequency influence may cause incorrect
information to be displayed and block the measuring process.
meter by switching it OFF and ON again otherwise, check the battery
connections.
Press the "ON/OFF" pushbutton (2).
Switch-"ON" is acknowledged by a sound signal. As long as you
keep the pushbutton pressed, all segments of the liquid crystal display
(LCD) will appear. The LCD is shown behind cover page
After the push button is released, the meter is ready for operation.
Reset the