UNI-T UT8805E

UT8805E Benchtop Digital Multimeter
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2.8.3 The dBm Operation .......................................................................................................... 38
2.8.4 dB Operation ..................................................................................................................... 38
2.8.5 The Relative Operation ..................................................................................................... 39
2.9 Display Format ........................................................................................................................... 40
2.9.1 Number ............................................................................................................................. 40
2.9.2 Bar Chart .......................................................................................................................... 40
2.9.3 Trend Chart ....................................................................................................................... 41
2.9.4 Histogram ......................................................................................................................... 41
2.9.5 Enabled trigger ................................................................................................................. 43
2.9.6 Auto Trigger ...................................................................................................................... 43
2.9.7 Single Trigger .................................................................................................................... 43
2.9.8 Hold Measurement ........................................................................................................... 43
2.9.9 Storage Management ....................................................................................................... 43
Chapter 3 Practical Cases------------------------------------------------------------------------------------------------------------------44
3.1 Readings Statistics ..................................................................................................................... 44
3.2 Elimination of Test Leads Impedance Error ................................................................................ 45
3.3 DBm Measurement ..................................................................................................................... 45
3.4 dB Measurement ......................................................................................................................... 46
3.5 Limit Test ..................................................................................................................................... 46
3.6 Hold Measurement ...................................................................................................................... 47
3.7 Thermocouple Setting and Measurement .................................................................................. 47
Chapter 4 Measurement Guide--------------------------------------------------------------------------------------------------- 49
4.1 True RMS AC Measurement ....................................................................................................... 49
4.2 Crest Factor Error (Non-sinusoidal Input) ................................................................................... 49
4.3 Load Error (AC Voltage) ............................................................................................................. 50
Chapter 5 Trouble Shooting-----------------------------------------------------------------------------------------------------------51
Chapter 6 Appendix----------------------------------------------------------------------------------------------------------------------52
Appendix A: Accessories of UT8805E .............................................................................................. 52
Appendix B: Warranty ....................................................................................................................... 52
Appendix C: Maintenance and Cleaning .......................................................................................... 52
Appendix D: Contacts ....................................................................................................................... 52