![Uni-T UT219M [15/20] 页 15](/img/pdf.png)
Uni-T UT219M [15/20] 页 15
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Содержание
- Content 1
- Limited warranty liability 1
- Preface 1
- I overview 2
- Ii unpacking inspection 2
- Iii safe operation rules 2
- Iv features 4
- V electrical symbols 4
- Vi comprehensive specifications 5
- Vii overall configuration 5
- Viii lcd display ix knobs 6
- X buttons 7
- Measuring 8
- Xi operating instruction for 8
- 页 10 10
- 页 11 11
- 页 12 12
- 页 13 13
- 页 14 14
- 页 15 15
- Xii technical specifications 16
- 页 16 16
- 页 17 17
- Frequency 18
- In case of capacitance to be measured 1 pf it is suggested that the accuracy of measurement can be guaranteed only by using the rel measurement mode 18
- Mhz 1 vrms a 30 vrms 18
- Resistance measurement 8 capacitance measurement 18
- 页 18 18
- Xiii maintenance and repair 19
- 页 19 19
- 页 20 20
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UNI UT219E Operating Manual 8 Frequency duty ratio measurement UT219E Operating Manual 1 Insert the red probe into Hz socket insert the black probe into COM socket 2 Set the functional range switch to Hz measurement position paralleily connect the probes to the signal source to be measured 3 Press Hz button once to enter Duty Ratio measurement mode press Hz button again to enter frequency measurement mode Note The requirement for input amplitude a should be met in frequency measurement 100 kHz 200 mVrms a 20 Vrms 100 kHz 1 MHz 600 mVrms a 20 Vrms 1 MHz 10 MHZ 1 Vrms a 20 Vrms 10 Mhz 1 8 Vrms a 20 Vrms Following requirements should be satisfied in duty ratio measurement The waveform is square wave and frequency 10kHz the amplitudes Vpp Input amplitude 20 Vpp Do not input 30 Vrms and more voltage for the frequency to be measured to prevent from personal injury After completion of all measuring disconnect the probes from the tested circuit 27 28 operation