under "a) Inserting and changing the battery". Remove the defec-
tive fuse(s) and replace with identical type(s) and nominal current
ratings; 0.5 A quick-acting, 250 V; usual description: F 0.5A / 250V
or 500 mAF / 250V.
After replacing the battery, carefully close the measuring instrument
once more. Only put the measuring instrument into operation once
again when the case is securely closed and screwed up.
c) Connecting the measuring leads
Always use only the supplied test leads for measurements. Before
connecting, always check the condition of the connecting plugs
and test probes and check the insulation for damage
The measuring leads, are approved for voltages up to 600 V max.
Your measuring instrument, the VC
-160
, is designed for voltages up
to 600 V DC or V AC rms max. in Overvoltage Category 1, or 300 V
AC rms / DC max. in Overvoltage Category 2. Take particular care
when dealing with voltages greater than 25 V AC or 35 V DC.
Never exceed the maximum input levels, because
otherwise damage to the measuring instrument can
endanger life.
d) Putting into operation
Basic settings
The measuring instrument is switched on by turning the rotary
switch away from the "OFF" position. After approx. 15 minutes
without measurement (inactivity), the measuring instrument
automatically switches itself off. With the button "Select" you can
now turn-on the measuring instrument.
e) Socket configuration
The eight pin transistor connector is marked symmetrically. While
switched off, plug the transistor connections (B) base, (E) emitter
34
Problem
Possible solution
No display
Is the instrument switched on?
Are the batteries exhausted?
Auto power off? => press HOLD button
Is the rotary switch set to an "in-bet-
ween" position (not indented)?
no current measurem.
Check the 400 mA current
possible
measurement range fuse
Observe the safety information without fail!
Except where this can be performed manually, live
parts may be exposed when opening covers or re-
moving components. Connection points may also
be live. Before any adjustment, maintenance, repair
or replacement of components or assemblies, if it is
necessary to open the unit, it must be disconnected
from all voltage sources and circuits. If adjustment,
maintenance or repair is subsequently required on
the opened unit while it is live, these must only be
performed by a specialist familiar with the associa-
ted hazards and relevant regulations (VDE-0100,
VDE-0701, VDE. Capacitors in the unit may still be
charged even when it has been isolated from all vol-
tage sources and circuits.
Maintenance
Changing a fuse is described under "Safety information". To clean
the unit and the display window, use a clean, lint-free, anti-static,
dry cleaning cloth.
43
