Ht-instruments HT77N Manual de usuario descargar pdf (Pagina 2)

HT77N

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

3. PREPARATION FOR USE ........................................................................................... 4

3.1. Initial checks ............................................................................................................................. 4

3.2. Instrument power supply.......................................................................................................... 4

3.3. Calibration ................................................................................................................................. 4

3.4. Storage ...................................................................................................................................... 4

4. OPERATING INSTRUCTIONS ..................................................................................... 5

4.1. Instrument description.............................................................................................................. 5

4.1.1. Description of the controls...................................................................................................... 5

4.1.2. Alignment marks and hand protection .................................................................................... 5

4.2. Description of functions keys................................................................................................... 6

4.2.1. /Data/Auto/Peak Hold key .................................................................................................. 6

4.2.2. Wide/50-60Hz/Compare key .................................................................................................. 7

4.2.3. Range key ............................................................................................................................. 7

4.2.4. Auto Backlight sensor ............................................................................................................ 7

4.3. Operating instruction ................................................................................................................ 8

4.3.1. AC Current measurement ...................................................................................................... 8

4.3.2. Leakage current measurement .............................................................................................. 9

5. MAINTENANCE.......................................................................................................... 10

5.1. General information ................................................................................................................ 10

5.2. Battery replacement ............................................................................................................... 10

5.3. Cleaning the instrument ......................................................................................................... 10

5.4. End of life ................................................................................................................................ 10

6. TECHNICAL SPECIFICATIONS................................................................................. 11

6.1. Technical characteristics ....................................................................................................... 11

6.1.1. Electrical specifications .........................................................................................................12

6.1.2. Reference guideline ..............................................................................................................12

6.1.3. General characteristics .........................................................................................................12

6.2. ENVIRONMENT ..................................................................................................................... 12

6.2.1. Environmental conditions for use ..........................................................................................12

6.3. Accessories............................................................................................................................. 12

6.3.1. Standard accessories ...........................................................................................................12

7. SERVICE .................................................................................................................... 13

7.1. Warranty conditions ............................................................................................................... 13

7.2. Service..................................................................................................................................... 13

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Ht-instruments HT77N Manual de usuario Pagina 2

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