UNI DM-1170A, Руководство по эксплуатации

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Continuity mode ( )
1) Press function key OHM .
2) Press SELECT key to select “ ” mode.
3) Touch the probes to the test points and read the display.
4) If the measurement points resistance falls below 50
Ω . The beeper will sound.
5) Analog bar, REL, MAX/MIN/AVG, A-H functions are disable in continuity mode.
High resistance mode (Hi Ω )
1) This function is used to measure the resistance above 80M Ω .
2) Press function key OHM .
3) Press SELECT key to select “ Hi Ω ” mode. The primary display will display “ Hi ”
4) Touch the probes to the test points and read the display.
5) Hi resistance mode is with single range 8000.0M
Ω . If the measurement points resistance falls below 10M Ω
and above 8000.0M Ω , “ OL ” will appears on the display.
6) Analog bar, REL, MAX/MIN/AVG, HOLD functions are disabled in high resistance mode.
5.4 Capacitance Measurement
WARNING: To avoid damage to the meter or the measurement equipments disconnect circuit
power and discharge all high voltage capacitors before measuring capacitance. Use the DC function
to confirm that the capacitor is discharged.
NOTE:
 Some capacitors have polarities. In measuring polaritive capacitors, touch the red test lead to the positive
polarity and the black test lead to the negative polarity.
 In measuring low capacitance, the resistance of the test leads may cause an error in the test results. To
avoid this error, first short the test leads, next press REL key. The primary display will be null and the
secondary display displays the resistance of test lead. Measure the to-be tested resistance and the result
will be displayed on the primary display.
Capacitor is capable of storing electric charge. When measuring capacitance, only the value on a stable display
is the correct result.
1) Press function key
.
2) According to practical demands, press REL , MAX/MIN and 2nd VIEW keys to have relative measuring or
record.
3) The meter is default in auto range mode and will automatically select a most suitable range. To select a
range manually for the measurement, press RANGE key to select a proper range. There are six ranges
to choose from: 1.0000nF/10.000nF/100.00nF/1.0000 μ F/10.000 μ F/100.00 μ F
4) Connect the black test lead to “ COM ” terminal and the red test lead to “ V Ω Hz ” terminal.
5) Touch the probes to the test points and read the display.
6) Analog bar and HOLD functions are disabled in capacitance measurement.
Measurement Primary display Secondary display MAX/MIN/AVG, REL functions
CAP nF/ μ F MAX/MIN/AVG, REL values Available
5.5 Frequency and Rotation Speed Measurement
The measurement of frequency and rotation speed measurement have three modes: normal, high frequency
and RPM.
NOTE: