HT instruments HT4011 - Manual (Page 2)

HT4011
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
4.1.1. Description of the controls .......................................................................................................... 6
4.2. Description of function keys .............................................................................................. 7
4.2.1. HOLD key ................................................................................................................................... 7
4.2.2. REL key ...................................................................................................................................... 7
4.2.3. Hz% key ...................................................................................................................................... 7
4.2.4. MODE key .................................................................................................................................. 7
4.3. Description of rotary switch functions ................................................................................ 8
4.3.1. DC voltage measurement ........................................................................................................... 8
4.3.2. AC voltage measurement ........................................................................................................... 9
4.3.3. Frequency and Duty Cycle measurement ................................................................................ 10
4.3.4. Resistance measurement ......................................................................................................... 11
4.3.5. Capacitance measurement ....................................................................................................... 12
4.3.6. Continuity test and diode test ................................................................................................... 13
4.3.7. Temperature measurement in °C and °F ................................................................................. 14
4.3.8. AC current measurement ......................................................................................................... 15
5. MAINTENANCE ......................................................................................................... 16
5.1. General information ......................................................................................................... 16
5.2. Replacing the battery ...................................................................................................... 16
5.3. Cleaning the instrument .................................................................................................. 16
5.4. End of life ........................................................................................................................ 16
6. TECHNICAL SPECIFICATIONS ................................................................................ 17
6.1. Technical characteristics ................................................................................................. 17
6.1.1. Reference standards ................................................................................................................ 18
6.1.2. General characteristics ............................................................................................................. 18
6.2. Environment .................................................................................................................... 18
6.2.1. Environmental conditions for use ............................................................................................. 18
6.3. Accessories provided ...................................................................................................... 19
6.4. Optional accessories ....................................................................................................... 19
7. SERVICE .................................................................................................................... 20
7.1. Warranty conditions ......................................................................................................... 20
7.2. Service ............................................................................................................................ 20