HT instruments HT701 - Manual (Page 2)

HT701
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
4.2. Description of function keys .............................................................................................. 7
4.2.1. HOLD/LOCK key ........................................................................................................................ 7
4.2.2. MAX/MIN/  key .......................................................................................................................... 7
4.2.3. Hz/
0/ key ........................................................................................................................... 7
4.2.4. MODE key .................................................................................................................................. 7
4.2.5. STORE/RECALL key .................................................................................................................. 8
4.2.6. RANGE/50V-1kV key ................................................................................................................. 8
4.2.7. TEST key .................................................................................................................................... 8
4.3. Internal modes of the instrument ....................................................................................... 9
4.3.1. Deactivation of the Autobacklight function ................................................................................. 9
4.3.2. Deactivation of the Auto power off function ................................................................................ 9
4.3.3. AutoTest and Manual Test mode ............................................................................................... 9
4.3.4. HFR mode .................................................................................................................................. 9
4.3.5. SMOOTH mode .......................................................................................................................... 9
4.3.6. Integrity test on internal fuse ...................................................................................................... 9
4.4. Measuring operations ...................................................................................................... 10
4.4.1. DC Voltage measurement ........................................................................................................ 10
4.4.2. AC Voltage and Frequency measurement ............................................................................... 11
4.4.3. DC Current measurement ........................................................................................................ 12
4.4.4. AC current and frequency measurement ................................................................................. 13
4.4.5. Resistance measurement and continuity test ........................................................................... 14
4.4.6. Diode test .................................................................................................................................. 15
4.4.7. Capacitance measurement ....................................................................................................... 16
4.4.8. Temperature measurement ...................................................................................................... 17
4.4.9. Insulation resistance measurement .......................................................................................... 18
5. MAINTENANCE ......................................................................................................... 19
5.1. Replacing the batteries and the internal fuse .................................................................. 19
5.2. Cleaning the instrument .................................................................................................. 19
5.3. End of life ........................................................................................................................ 19
6. TECHNICAL SPECIFICATIONS ................................................................................ 20
6.1. Technical characteristics ................................................................................................. 20
6.1.1. Electrical characteristics ........................................................................................................... 23
6.1.2. Considered standards .............................................................................................................. 23
6.1.3. General characteristics ............................................................................................................. 23
6.2. Environment .................................................................................................................... 23
6.2.1. Environmental conditions for use ............................................................................................. 23
6.3. Accessories ..................................................................................................................... 24
6.3.1. Standard accessories ............................................................................................................... 24
6.3.2. Optional accessories ................................................................................................................ 24
7. SERVICE .................................................................................................................... 25
7.1. Warranty conditions ......................................................................................................... 25
7.2. Service ............................................................................................................................ 25