Maintenance And Battery Replacement; Electrical Specifications - Urrea UD12 Manual De Usuario

E N G L I S H
WARNING: TO AVOID THE RISK OF ELECTRIC
SHOCK, INSTRUMENT
EQUIPMENT DAMAGE, INPUT VOLTAGES MUST
NOT EXCEED 600 VOLTS DC OR PEAK AC. DO NOT
ATTEMPT TO TAKE ANY UNKNOWN VOLTAGE
MEASUREMENT THAT MAY BE IN EXCESS OF 600
VOLTS DC OR PEAK AC.
1. Connect the Black test lead to the COM
terminal and the Red test to the V terminal.
2. Set the function switch to your desired DC
V or AC V range and touch the probes to the
circuit under test, and read the display.
The Meter beeps when
displayed, then the function switch must be set
to a higher range.
In case of negative DC voltage, "
will appear on the left side of LCD.
NOTE: If you do not know the value of the
voltage to be measured, always start with
the highest range and reduce the setting as
required to obtain a satisfactory reading.
Resistance Measurement and Continuity
Test.
When measuring resistance, make certain 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.
1. Connect the Black test lead to the COM
terminal and Red test lead to the
2. Set the function switch to 200
leads open, the Meter should display a
the LCD.
3. Short the leads and see that the display reads
<0.2 Ω and the continuity beeper sounds. If not,
check the test eads insertion or position of the
8
DAMAGE AND/OR
(overload) is
" symbol
terminal.
. With the
on
function switch again.
4. Touch the test leads to the circuit under test
and read the resistance measurement in the
display. A reading of 50 Ω or less will cause the
continuity beeper to sound.
4. MAINTENANCE AND BATTERY
REPLACEMENT
General Maintenance.
WARNING: REPAIRS OR SERVICING NOT
COVERED IN THIS MANUAL SHOULD ONLY BE
PERFORMED BY QUALIFIED PERSONNEL. TO
AVOID ELECTRICAL SHOCK, DO NOT SERVICE
UNLESS YOU ARE QUALIFIED TO DO SO.
Periodically wipe the case with a damp cloth
and detergent; do not use abrasives or solvents.
Calibrate this Meter once a year to maintain its
performance specifications.
Battery Replacement.
The Meter uses a 9V battery (NEDA 1604 or IEC
6LR61). To replace the battery, remove the two
screws of the battery compartment from the
back of the Meter and lift off the cover of the
compartment. Replace the battery. Reattach
the compartment cover to the back of the
Meter, and reinstall the screws.
Using Test Leads.
Use only the test leads supplied (UD71TLAC)
designed to be used with the instrument.

5. ELECTRICAL SPECIFICATIONS

Accuracy is given as ± (% of reading) + (number
of least significant digits) at 18°C to 28°C with
relative humidity up to 80%, for a period of one
year after calibration. AC conversions of this