HT instruments HT8100 - Manual (Page 2)

HT8100
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. A-HOLD and REL
 keys .................................................................................................................... 7
4.2.2. ENTER and CANCEL keys ................................................................................................................ 7
4.2.3. HFR and Hz keys ............................................................................................................................... 7
4.2.4. RANGE and MODE keys ................................................................................................................... 7
4.3. Internal modes of the instrument ....................................................................................... 8
4.3.1. MIN/MAX/AVG measurement ............................................................................................................ 8
4.3.2. AutoTest and Manual Test mode ....................................................................................................... 8
4.3.3. AC+DC mode ..................................................................................................................................... 8
4.3.4. HFR mode ......................................................................................................................................... 8
4.3.5. STORE and RECALL modes ............................................................................................................. 9
4.3.6. Activation/deactivation of the internal functions ................................................................................. 9
4.3.7. Output DC current generation .......................................................................................................... 10
4.3.8. Loop Power and HART 250
 modes .............................................................................................. 10
4.4. Measuring operations ...................................................................................................... 11
4.4.1. DC Voltage measurement ............................................................................................................... 11
4.4.2. AC Voltage and Frequency measurement ....................................................................................... 12
4.4.3. DC Current measurement ................................................................................................................ 13
4.4.4. AC Current and Frequency measurement ....................................................................................... 14
4.4.5. Resistance measurement and Continuity test ................................................................................. 15
4.4.6. Diode test ......................................................................................................................................... 16
4.4.7. DC current generation ..................................................................................................................... 17
4.4.8. Simulation of a transducer ............................................................................................................... 18
4.4.9. Measuring output DC current from external transducers (Loop) ..................................................... 19
5. MAINTENANCE ......................................................................................................... 20
5.1. Replacing the batteries and the internal fuses ................................................................ 20
5.2. Cleaning the instrument .................................................................................................. 20
5.3. End of life ........................................................................................................................ 20
6. TECHNICAL SPECIFICATIONS ................................................................................ 21
6.1. Technical characteristics ................................................................................................. 21
6.1.1. Electrical characteristics .................................................................................................................. 23
6.1.2. Considered standards ...................................................................................................................... 23
6.1.3. General characteristics .................................................................................................................... 23
6.2. Environment .................................................................................................................... 24
6.2.1. Environmental conditions for use ..................................................................................................... 24
6.3. Accessories ..................................................................................................................... 24
6.3.1. Accessories provided ....................................................................................................................... 24
7. SERVICE .................................................................................................................... 25
7.1. Warranty conditions ......................................................................................................... 25
7.2. Service ............................................................................................................................ 25