HT9020
EN - 1
Table of contents:
1. PRECAUTIONS AND SAFETY MEASURES ........................................................................... 2
1.1. Preliminary instructions .................................................................................................................... 2
1.2. During use ........................................................................................................................................ 3
1.3. After use ........................................................................................................................................... 3
1.4. Definition of measurement (overvoltage) category .......................................................................... 3
2. GENERAL DESCRIPTION ....................................................................................................... 4
2.1. Measuring average values and TRMS values ................................................................................. 4
2.2. Definition of true root mean square value and crest factor .............................................................. 4
3. PREPARATION FOR USE ....................................................................................................... 5
3.1. Initial checks ..................................................................................................................................... 5
3.2. Instrument power supply .................................................................................................................. 5
3.3. Calibration ........................................................................................................................................ 5
3.4. Storage ............................................................................................................................................. 5
4. OPERATING INSTRUCTIONS ................................................................................................. 6
4.1. Instrument description ...................................................................................................................... 6
4.1.1. Description of the controls ................................................................................................................. 6
4.1.2. Alignment marks ................................................................................................................................ 6
4.1.3. Hand protection ................................................................................................................................. 7
4.1.4. Indication of the conventional direction of Current ............................................................................. 7
4.2. Function keys description ................................................................................................................. 8
4.2.1. F1, F2, F3, F4/OK keys ..................................................................................................................... 8
4.2.2. H/ESC/ key .................................................................................................................................... 8
4.3. Initial screen ..................................................................................................................................... 8
5. OPERATING INSTRUCTIONS ................................................................................................. 9
5.1. Instrument settings ........................................................................................................................... 9
5.2. AC Voltage detection ........................................................................................................................ 9
5.3. DC Voltage measurement .............................................................................................................. 10
5.4. AC/AC + DC Voltage measurement ............................................................................................... 12
5.4.1. Voltage Harmonics measurement ................................................................................................... 14
5.4.2. Phase Sequence and Phase Conformity ......................................................................................... 15
5.5. DC Current measurement .............................................................................................................. 19
5.6. AC/AC + DC Current measurement ............................................................................................... 21
5.6.1. Current Harmonics measurement .................................................................................................... 23
5.6.2. Dynamic Inrush current measurement ............................................................................................. 24
5.7. DC Power and Energy measurement ............................................................................................ 26
5.8. AC/AC+DC Power and Energy measurement ............................................................................... 30
5.9. Resistance and Continuity test measurement ............................................................................... 36
6. MAINTENANCE ...................................................................................................................... 39
6.1. General information ........................................................................................................................ 39
6.2. Battery replacement ....................................................................................................................... 39
6.3. Cleaning the instrument ................................................................................................................. 39
6.4. End of life ....................................................................................................................................... 39
7. TECHNICAL SPECIFICATIONS ............................................................................................. 40
7.1. Technical characteristics ................................................................................................................ 40
7.1.1. Reference guidelines ....................................................................................................................... 42
7.1.2. General characteristics .................................................................................................................... 42
7.2. ENVIRONMENT ............................................................................................................................. 42
7.2.1. Environmental conditions for use ..................................................................................................... 42
7.3. Accessories provided ..................................................................................................................... 42
8. SERVICE ................................................................................................................................ 43
8.1. Warranty conditions ........................................................................................................................ 43
8.2. Service ........................................................................................................................................... 43
9. APPENDIX – THEORETICAL OUTLINE ................................................................................ 44
9.1. Calculation of powers in “AC 1P” mode ......................................................................................... 44
9.2. Calculation of powers in “AC 3P” mode ......................................................................................... 44
9.3. Calculation of powers in “DC” mode .............................................................................................. 44
9.4. voltage and current harmonics ....................................................................................................... 45
9.5. Limit values for harmonics ............................................................................................................. 46
9.6. Causes FOR the presence of harmonics ....................................................................................... 46