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Circuit-test DLM-260 Operating Instructions page 2

Digital lcr meter

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Frequency Measurements
1. Set the Function/Range switch to the Hz position.
2. Connect the red test lead to the DCV-DIODE-Hz "+"
jack and the black test lead to the DCV-DIODE-Hz "−"
jack.
3. Connect the test leads to the point of measurement and
read the frequency from the display.
Capacitance
1. Discharge capacitors before trying to measure it.
2. Set the Range to the desired F range.
3. Insert the leads directly in to socket or test leads sockets.
4. Never apply an external voltage to sockets or damage to
the meter may result.
5. Read the capacitance directly from the display.
Note: In lower range 200pF, 2nF subtract residual offset
reading from result with test leads opening
Resistance
1. Set the Range to the desired "Ω" resistance range.
2. Never apply an external voltage to the sockets or dam-
age to the meter may result.
3. Insert the leads directly in to socket or test leads sockets.
4. Read the Resistance directly from the display.
WARNING
The accuracy of the functions might be slightly affected,
when exposed to a radiated electromagnetic field
environment, e.g., radio, telephone or similar.
Inductance
1. Set the Ranges to the desired H range.
2. Never apply an external voltage to the sockets damage
to the meter may result.
3. Insert the inductor leads directly into sockets or test
leads sockets.
4. Read the inductance directly from the display.
Note: In lower range 200µH, 2mH subtract residual
offset reading from result with test leads being
shorted.
MAINTENANCE
WARNING
Remove test leads before changing battery or fuse or
performing any servicing.
Battery Replacement
Power is supplied by a 9 volt "transistor" battery.
(NEDA 1604 IEC 6F22). The "
" appears on the LCD
display when replacement is needed. To replace the battery,
remove the two screws from the back of the meter and lift
off the battery case. Remove the battery from battery con-
tacts.
Fuse Replacement
If no capacitance and inductance measurements are pos-
sible, check for a blown overload protection fuse. For
access to fuses, remove the two screws from the back of
the meter and lift off the battery case. Replace F1 only
with the original type 0.1A/250V, fast acting fuse.
Cleaning
Periodically wipe the case with a damp cloth and deter-
gent, do not use abrasives or solvents.
V1. 043008

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