HT Instruments HT8100 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 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
EN - 1
HT8100