Maintenance And Battery Replacement - Urrea UD333 Manual De Usuario

• RESISTANCE MEASURING
AND CONTINUITY TESTING
When measuring resistance, make
sure that the contact between the
test leads and the circuit under test
is good. Dirt, oil, solder, flux or other
foreign matter seriously affect the
reading value.
Follow these steps to measure
resistance and test continuity.
1. Insert the red test lead into the
VΩHz input terminal and the black
test lead into COM terminal.
2. Set the function switch to 200 Ω
/ . With the leads open, the Meter
should display a
sign) on the LCD.
3. Short the leads and see that display
reads ≤ 0,2 Ω and the continuity
beeper sound, If not, check the test
leads insertion or positions of the
function switch again.
4. Touch the test leads to the circuit
under test and read the resistance
measurement in the display. A
reading of 15 Ω or less will cause the
continuity beeper to sound.
• FREQUENCY MEASURING
(the overrange
E N G L I S H
Follow these steps to measure
frequency.
1. Insert the red test lead into the
VΩHz input terminal and the black
test lead into the COM terminal.
2. Set the function switch to kHz.
3. Touch the test probes to the test
points and read the display, if the
measured frequency is greater than
2 kHz, (the over range sign is
displayed).
5. MAINTENANCE AND
BATTERY REPLACEMENT
MAINTENANCE
Periodically wipe the case with a
damp cloth and detergent; do not use
abrasive or solvents.
WARNING: REMOVE THE TEST
LEADS AND ANY
BEFORE OPENING THE CASE. TO AVOID
ELECTRICAL SHOCK OR DAMAGE TO THE
METER, DO NOT GET WATER INSIDE THE
CASE.
SERVICE AND REPLACEABLE
PARTS
INPUT SIGNALS
13