Urrea UD18, Руководство пользователя и гарантия

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E N G L I S H
it is ON but inactive for more than 30
minutes. Press any pushbutton or change
the measurement function to resume
operation. Standby is not allowed if the
Meter in the MAX/MIN Recording mode.
To disable Standby mode, press and hold
down the HOLD pushbutton for 2 seconds
while pressing the ON/OFF pushbutton.
5. INPUT RANGES
The input range determines the highest
value that the Meter can measure. Most
functions have more than one range (see
Specifications). If the range is too low, the
display shows OFL (overflow or overload). If
the range is too high, the display will show
fewer digits of resolution.
Autoranging.
The Meter defaults to autoranging
mode when you turn the Meter on. In
autoranging mode, the Meter selects the
best range automatically.
Manually Selecting a Range.
The Meter also has a manual range mode.
In manual range mode, you select and lock
the Meter in a range.
To manually select range:
1. Press the meter is locked in the range it
is in, and is displayed.
2. Press to step through the ranges.
The Meter beeps whenever the range
changes.
3. To return to autorange, press for 2
seconds or change the measurement
function. is no longer displayed.
6. GENERAL TESTING AND
MEASURING
6.1 Measuring Volts
WARNING: O AVOID THE RISK OF
ELECTRICAL SHOCK, INSTRUMENT
DAMAGE AND/OR EQUIPMENT
DAMAGE, INPUT VOLTAGES MUST
NOT EXCEED 750 VOLTS DC OR PEAK
AD. DO NOT ATTEMPT TO TAKE ANY
UNKNOWN VOLTAGE MEASUREMENT
THAT MAY BE IN EXCESS OF 750
VOLTS DC OR PEAK AC.
1. Insert the leads in the jacks.
2. Set the rotary switch to the voltage
function.
3. To toggle between DC and AC, press .
4. Touch the probes to the test points, and
read the display. The Meter beeps when
OFL (overload) is displayed.
6.2 Measuring Resistance.
CAUTION: TURN OFF POWER AND
DISCHARGE ALL CAPACITORS ON
CIRCUIT TO BE TESTED BEFORE
ATTEMPTING IN-CIRCUIT RESISTANCE
MEASUREMENTS. FAILURE TO DO SO
MAY END UP IN EQUIPMENT AND/OR
INSTRUMENT DAMAGE.
1. Insert the test leads in the jacks, and
turn off power to the circuit under test.
External voltage across the components
causes erroneous readings.
2. Set the rotary switch to the Ω function.
3. Touch the probes to the test points, and
read the display. The Meter beeps when
OFL (overload) is displayed.
6.3 Testing Continuity and Diodes.
1. Insert the test leads in the jacks.