HT Instruments HT63 Bedienungsanleitung Seite 30

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 andTRMS 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. Description of the instrument ............................................................................................. 6
4.1.1. Description of the controls .......................................................................................................... 6
4.2. Description of function keys .............................................................................................. 7
4.2.1. A HOLD key ................................................................................................................................ 7
4.2.2. RANGE key ................................................................................................................................ 7
4.2.3. MAX MIN/PEAK key ................................................................................................................... 7
4.2.4. Hz%/REL key ........................................................................................................................... 7
4.2.5. MODE key .................................................................................................................................. 8
4.2.6. HIRES key .................................................................................................................................. 8
4.2.7. Disabling the Auto Power Off function ........................................................................................ 8
4.3. Description of rotary switch functions ................................................................................ 9
4.3.1. DC Voltage measurement .......................................................................................................... 9
4.3.2. AC Voltage measurement ........................................................................................................ 10
4.3.3. Frequency and Duty Cycle measurement ................................................................................ 11
4.3.4. Resistance measurement and Continuity test .......................................................................... 12
4.3.5. Diode test .................................................................................................................................. 13
4.3.6. Capacitance measurement ....................................................................................................... 14
4.3.7. Temperature measurement with K-type probe ......................................................................... 15
4.3.8. DC Current measurement and e 4-20mA% reading ................................................................ 16
4.3.9. AC Current measurement ......................................................................................................... 17
5. MAINTENANCE ......................................................................................................... 18
5.1. Replacing the batteries and the internal fuses ................................................................ 18
5.2. Cleaning the instrument .................................................................................................. 18
5.3. End of life ........................................................................................................................ 18
6. TECHNICAL SPECIFICATIONS ................................................................................ 19
6.1. Technical characteristics ................................................................................................. 19
6.1.1. Reference standards ................................................................................................................ 21
6.1.2. General characteristics ............................................................................................................. 21
6.2. Environment .................................................................................................................... 21
6.2.1. Environmental conditions for use ............................................................................................. 21
6.3. Accessories ..................................................................................................................... 21
6.3.1. Accessories provided ............................................................................................................... 21
6.3.2. Optional accessories ................................................................................................................ 21
7. ASSISTANCE ............................................................................................................. 22
7.1. Warranty conditions ......................................................................................................... 22
7.2. Assistance ....................................................................................................................... 22
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HT63