Veto DT-16, Руководство пользователя

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User's Guide of Digital Mini Multimeters DT-16/DT-18
⑸
Press the Hz and Duty button again and start the DUTY
measurement.
Cautions:
The tested resolution has a little difference according to the input
frequency and waveform. The resolution of the instrument is
according to the sine wave to develop.
7.5 Diode and Buzzer on-off measurement
⑴
Put rotary switch to Ω file. (DT16 has no file)
⑵
Press SELECT button to start diode measurement (press this
button again to start Buzzer on-off measurement)
⑶
If connect red probe to the positive terminal of the tested diode
and black probe to the negative terminal, and approximated
positive PN pressure drop value can be obtained directly from
the display. (Set the function switch to the measuring stalls, and
put probe parallel connected to the two terminals of the tested
circuit. the circuit is working and the buzzer ringing continuous
and the red indicator lights if the resistance of those is ≤70Ω,
and the LCD display the resistance value of the terminals of the
tested circuit).
Cautions:
The display will show “OL” if the tested diode of the circuit is
open or the polarity of the diode is opposite.
Approximated positive PN pressure drop value can be obtained
directly from the display, the unit is mV. The normal value for
silicone PN is 500-800mV.
Please cut off all the power in the circuit and all capacitors
exhausted residDTl charge before measuring the online diode.
For safety reasons, please don’t input voltage DCV>60V or