Maintenance - UNI-T UT123T Manual

SVENSKA ENGLISH
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If the measured resistor is open or the resistance exceeds the max-
imum range, the OL" symbol will appear on the display.
•
Do not input voltage higher than DC 60V or AC 30V.
•
Measured value = measured display value - short circuit value of the test leads
Continuity Measurement
1. Turn the range switch to the continuity measurement position;
2. Insert the red test lead into the "
the probes in contact with the two test points;
3. Measured resistance <30 : The indicator lights up green accompanied by
continuous beeps,indicating that the on-resistance is small, and the LCD displays
the corresponding resistance value. Measured resistance within 31 ~420 : The
indicator lights up red accompanied by no beep, indicating that the on-resistance
is large, and the LCD displays the corresponding resistance value. Measured
resistance >420 : The indicator and buzzer have no response, indicating that the
circuit is open. The LCD displays "OL".
Note:
Before measuring the continuity online, switch off the power supply of the circuit, and
fully discharge all capacitors to avoid damage to the meter and user.
Temperature Measurement
•
Turn the range switch to the tem-
perature measurement position;
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Insert the plug of the K-type ther-
mocouple into the meter, and fix the
temperature sensing probe on the object
to be tested; read the temperature
value on the display after it is steady.
Note:
"OL" symbol appears when the meter is turned
on. Only K-type thermocouple/ temperature
sensor is applicable (The measured temperature
should be less than 300 °C/572 °F).
°F=°C*1 8+32
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" jack, black into the COM" jack, and make
Non-contact AC Electric Field Sensing
•
To sense whether there is AC voltage
or . electromagnetic field, please turn
the range switch to the NCV position;
•
Bring the front end of the meter close
to the measured object to start sensing.
The intensity of the electric field sensing
is indicated by the LED indicator and
the segment "-" on the LCD. The more
the segments (up to four segments)
are displayed, the higher the electric
field intensity and the faster the beep.
Others
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During measurement, if there is no operation of the range switch or any button for
15 minutes, the meter will automatically shut down to save power. You can wake it
up by pressing any button or turning the range switch, and the buzzer should beep
once for indication. To disable auto shutdown, turn the range switch to the OFF
position, press and hold the SELECT button (>2 seconds) while power up the meter.
•
When you press any button or turn the range switch, the buzzer will beep once.
•
Buzzer warning: Input voltage >600V (AC/DC): The buzzer beeps
continuously warning that the range is at its limit.
•
About 1 minute before auto shutdown, the buzzer will make five consec-
utive beeps; before shutdown, the buzzer will make one long beep.

Maintenance

Warning: Before opening the rear cover of the meter, switch off the power supply
(remove the test leads from the input terminals and the circuit).
General Maintenance
Clean the meter casing with a damp cloth and mild detergent. Do not use abrasives or
solvents! lf there is any malfunction, stop using the meter and send it for maintenance.
The maintenance and service must be implemented by qualified professionals or
designated departments.
SVENSKA ENGLISH
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