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Frequency measuring
• Connect the measuring wire or the shielded
cable to the „COM" and „V / Ω" connectors.
• Set the function switch to „20 MHz" position
and touch the wires to the signal source.
Note:
• Do not measure frequency at a voltage exceeding 250
V(RMS).
• In noisy environment it is advised to use a shielded cable for
measuring small values.
• Avoid touching the circuit when measuring high voltage!
• Frequency measuring changes range automatically.
Inductance measuring
• Set the function swith to the desired measuring
range.
• Connect the measured inductor to the "mA"
and "COM" terminal.
Remark:
• If the measured inductance is not known, start measuring
at H range until overload signal turns off.
• Inductors with low inductance function as short circuits. If
possible, do not connect such inductors to the connectors.
Auto Power Off
• After stop working for 15 minutes, the meter
will be into sleep mode. Press "POWER" key can
back to work.
• Press "REL/MAX/MIN" key and at the same
time with the "POWER" key the "APO" symbol
will disappear, now you already closed the
function of auto power off.
W
arninG
• When measuring voltage make sure that the
wires are not connected to a current measuring
connector and that the function switch is not
in resistance or diode measuring measuring
mode. Always check if you have connected the
wires into the proper connectors.
• Be careful when measuring voltage above 50 V,
especially with high voltage equipment.
• Avoid connecting to „live" circuits.
• Turn off the power in the circuit before
connecting the multimeter to measure current
and do not measure above 20 A.
• Before measuring resistance and diode make
sure the circuit is not under power.
• Always set the function and measuring range
appropriate for the measuring. If in doubt,
set the maximum measuring range and go
backwards.
• Make sure that the wire and its isolation is not
damaged.
• Only replace fuses to the same type and value.
• When replacing the fuse or battery make sure
all external power sources are turned off and
that the multimeter is turned off as well.
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m
are and
Operation
• Keep the multimeter dry. If it gets wet, dry it up
immediately. The liquid corrodes the electric
circuit.
• The multimeter should be stored and used
only at normal temperature. High temperature
can shorten the lifetime of electronic devices,
damage to the batteries and distort, melt the
plastic parts.
• Handle the multimeter carefully. If it is dropped
that can cause damage to the electric circuit
and to the case which leads to the improper
operation of the multimeter.
• Keep away the multimeter from dust and
dirt which results in premature wear of the
components.
• The multimeter can be cleaned with wet
cloth. Do not use chemicals, solvents or strong
detergents for cleaning.
• Servicing
• Battery replacement (1 piece 9V)
• Turn off all external circuits. Switch off the
multimeter and pull out the test lead of the
socket.
• Unscrew the screws and remove the bottom
cover.
• Remove the low battery and replace a same
type of it.
Fuse replacement
• Turn off all external circuits. Set the switch to
OFF position and pull out the test lead of the
socket.
• Unscrew the screws and remove the bottom
cover.
• Replace the blown out fuse to a same type and
valued (5x20 mm, 200 mA / 250 V „F" signed.)
aintenance
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