HT instruments HT9022 - Manual (Page 4)

HT9022
EN - 2
5.5. Position “W ”: DC, AC+DC power measurement ......................................................................... 28
5.5.1. DC power measurement ................................................................................................................... 29
5.5.1.1. Key F2 “Par” .................................................................................................................................... 29
5.5.1.2. DC power ......................................................................................................................................... 30
5.5.1.2.1. Key F4 “Fnz” in DC Power measurement ................................................................................... 30
5.5.1.3. DC voltage and current .................................................................................................................... 30
5.5.1.3.1. Key F4 “Fnz” in DC Voltage and Current measurement .............................................................. 31
5.5.1.4. DC Energy ....................................................................................................................................... 31
5.5.1.5. Hold ................................................................................................................................................. 31
5.5.1.6. Backlight .......................................................................................................................................... 31
5.5.2. Measurement of AC 1P or AC 3P Powers ........................................................................................ 32
5.5.2.1. Key F2 “Par” .................................................................................................................................... 32
5.5.2.2. AC+DC power .................................................................................................................................. 33
5.5.2.3. Pf and dPf ........................................................................................................................................ 33
5.5.2.3.1. Key F4 “Fnz” in Power or Pf-dPf measurement .......................................................................... 33
5.5.2.4. AC+DC Voltage and Current............................................................................................................ 34
5.5.2.4.1. Key F4 “Fnz” in AC Voltage and Current measurement .............................................................. 34
5.5.2.5. Voltage harmonics ........................................................................................................................... 35
5.5.2.6. Current harmonics ........................................................................................................................... 35
5.5.2.6.1. Key F4 “Fnz” in Voltage and Current Harmonics measurement .................................................. 35
5.5.2.7. AC Energy ....................................................................................................................................... 36
5.5.2.8. Hold ................................................................................................................................................. 36
5.5.2.9. Backlight .......................................................................................................................................... 36
5.6. Position “W ”: Log, On-Line Scope, SnapShot, MemorY, Download .......................................... 37
5.6.1. Key F3 “Sys”...................................................................................................................................... 37
5.6.1.1. “Start Log” recording ........................................................................................................................ 37
5.6.1.2. On-line ............................................................................................................................................. 38
5.6.1.3. Memory ............................................................................................................................................ 39
5.6.1.4. SnapShot ......................................................................................................................................... 39
5.6.1.5. Download ......................................................................................................................................... 40
5.7. Position “ Ω ”: Resistance and continuity measurement .............................................................. 41
5.7.1. Key F4 “Fnz”...................................................................................................................................... 42
5.7.1.1. Hold ................................................................................................................................................. 42
5.7.1.2. Backlight .......................................................................................................................................... 42
5.8. Position “InRush A ”: inrush current measurement ..................................................................... 43
5.8.1. Virtual key “Zero” ............................................................................................................................... 44
5.8.2. Key F3 “Run” ..................................................................................................................................... 44
5.8.3. Key F4 “Mem”.................................................................................................................................... 44
6. MAINTENANCE ...................................................................................................................... 46
6.1. General information ........................................................................................................................ 46
6.2. Battery replacement ....................................................................................................................... 46
6.3. Cleaning the instrument ................................................................................................................. 46
6.4. End of life ....................................................................................................................................... 46
7. TECHNICAL SPECIFICATIONS ............................................................................................. 47
7.1. Technical characteristics ................................................................................................................ 47
7.1.1. Safety standards ............................................................................................................................... 49
7.1.2. General characteristics...................................................................................................................... 49
7.2. ENVIRONMENT ............................................................................................................................. 49
7.2.1. Environmental conditions for use ...................................................................................................... 49
7.3. Accessories provided ..................................................................................................................... 49
8. SERVICE ................................................................................................................................ 50
8.1. Warranty conditions ........................................................................................................................ 50
8.2. Service ........................................................................................................................................... 50
9. APPENDIX – THEORETICAL OUTLINE ................................................................................ 51
9.1. Calculation of powers in “AC 1P” mode ......................................................................................... 51
9.2. Calculation of powers in “AC 3P” mode ......................................................................................... 51
9.3. Calculation of powers in “DC” mode .............................................................................................. 51
9.4. voltage and current harmonics ....................................................................................................... 52
9.5. Limit values for harmonics ............................................................................................................. 53
9.6. Causes of the presence of harmonics ............................................................................................ 53
9.7. Consequence of the presence of harmonics ................................................................................. 54