Ht-instruments HT9022 Uživatelský manuál stáhnout pdf (Strana 3)

HT9022

EN - 1

Table of contents:

1. PRECAUTIONS AND SAFETY MEASURES ........................................................................... 3

1.1. Preliminary instructions .................................................................................................................... 4

1.2. During use ........................................................................................................................................ 4

1.3. After use ........................................................................................................................................... 4

1.4. Definition of measurement (overvoltage) category .......................................................................... 5

2. GENERAL DESCRIPTION ....................................................................................................... 6

2.1. Measuring average values and TRMS values ................................................................................. 7

2.2. Definition of true root mean square value and crest factor .............................................................. 7

2.3. Harmonics ........................................................................................................................................ 7

3. PREPARATION FOR USE ....................................................................................................... 8

3.1. Initial checks ..................................................................................................................................... 8

3.2. Instrument power supply .................................................................................................................. 8

3.3. Calibration ........................................................................................................................................ 8

3.4. Storage ............................................................................................................................................. 8

4. OPERATING INSTRUCTIONS ................................................................................................. 9

4.1. Instrument description ...................................................................................................................... 9

4.1.1. Description of the controls ................................................................................................................... 9

4.1.2. Alignment marks.................................................................................................................................. 9

4.1.3. Hand protection ................................................................................................................................. 10

4.1.4. Indication of the conventional direction of Current ............................................................................ 10

4.2. Description of the keys ................................................................................................................... 10

4.2.1. Keys F1 – F2 – F3 – F4 .................................................................................................................... 10

4.2.2. Key H................................................................................................................................................. 10

4.2.3. Key .............................................................................................................................................. 10

4.3. Initial screen ................................................................................................................................... 11

5. INSTRUMENT FUNCTIONS ................................................................................................... 12

5.1. Phase detection .............................................................................................................................. 12

5.2. “Settings” position: Instrument settings .......................................................................................... 12

5.2.1. General.............................................................................................................................................. 12

5.2.2. Date/Time .......................................................................................................................................... 12

5.2.3. Log .................................................................................................................................................... 13

5.2.4. InRush ............................................................................................................................................... 13

5.2.5. Continuity .......................................................................................................................................... 13

5.3. Position “V ”: DC, AC+DC voltage measurement and phase sequence verification ................... 14

5.3.1. DC voltage measurement.................................................................................................................. 14

5.3.1.1. Key F4 “Fnz” .................................................................................................................................... 15

5.3.1.2. Hold ................................................................................................................................................. 15

5.3.1.3. Backlight .......................................................................................................................................... 15

5.3.2. AC+DC voltage and Voltage Harmonics measurement .................................................................... 16

5.3.2.1. Key F2 “Par” .................................................................................................................................... 16

5.3.2.2. AC+DC voltage ................................................................................................................................ 16

5.3.2.2.1. Key F4 “Fnz” in AC+DC voltage measurement ........................................................................... 17

5.3.2.3. Voltage harmonics ........................................................................................................................... 17

5.3.2.3.1. Key F4 “Fnz” in Voltage Harmonics measurement...................................................................... 17

5.3.2.4. Hold ................................................................................................................................................. 18

5.3.2.5. Backlight .......................................................................................................................................... 18

5.3.3. Checking phase sequence and phase concordance with a lead ...................................................... 19

5.3.3.1. Verification of Phase Sequence. ...................................................................................................... 19

5.3.3.2. Verification of Phase Concordance .................................................................................................. 21

5.4. Position “A ”: DC, AC+DC current measurement ........................................................................ 23

5.4.1. DC current measurement .................................................................................................................. 23

5.4.1.1. Key F4 “Fnz” .................................................................................................................................... 24

5.4.1.2. Hold ................................................................................................................................................. 24

5.4.1.3. Backlight .......................................................................................................................................... 24

5.4.2. AC+DC current and Current Harmonics measurement ..................................................................... 25

5.4.2.1. Key F2 “Par” .................................................................................................................................... 25

5.4.2.2. AC+DC current ................................................................................................................................ 25

5.4.2.2.1. Key F4 “Fnz” in AC+DC current measurement ........................................................................... 26

5.4.2.3. Current harmonics ........................................................................................................................... 26

5.4.2.3.1. Key F4 “Fnz” in Current Harmonics measurement ...................................................................... 26

5.4.2.4. Hold ................................................................................................................................................. 27

5.4.2.5. Backlight .......................................................................................................................................... 27

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