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HT9012
EN - 1
Contents:
1
SAFETY PRECAUTIONS AND PROCEDURES .......................................................... 2
1.1
Preliminary ...................................................................................................................... 2
1.2
Before use ....................................................................................................................... 3
1.3
After use .......................................................................................................................... 3
1.4
Measuring (overvoltage) categories definitions ................................................................ 3
2
GENERAL DESCRIPTION ........................................................................................... 4
2.1
TRMS and Mean Value measuring instruments ............................................................... 4
2.2
True Root Mean Square value and crest factor definitions ............................................... 4
3
PREPARATION FOR USE ........................................................................................... 5
3.1
Initial ................................................................................................................................ 5
3.2
Power supply ................................................................................................................... 5
3.3
Calibration ....................................................................................................................... 5
3.4
Storage ............................................................................................................................ 5
4
OPERATING INSTRUCTIONS ..................................................................................... 6
4.1
Instrument description ..................................................................................................... 6
4.1.1
Commands description ............................................................................................................... 6
4.1.2
Alignment marks ......................................................................................................................... 6
4.2
Function key description .................................................................................................. 7
4.2.1
HOLD key ................................................................................................................................... 7
4.2.2
key ........................................................................................................................................ 7
4.2.3
RANGE key ................................................................................................................................ 7
4.2.4
MAX key ..................................................................................................................................... 7
4.2.5
MODE key .................................................................................................................................. 7
4.3
Functions of rotary switch description .............................................................................. 8
4.3.1
DC Voltage measurement .......................................................................................................... 8
4.3.2
AC Voltage measurement .......................................................................................................... 9
4.3.3
AC Current measurement ......................................................................................................... 10
4.3.4
Resistance measurement ......................................................................................................... 11
4.3.5
Continuity test and Diode test ................................................................................................... 12
5
MAINTENANCE.......................................................................................................... 13
5.1
General informations ..................................................................................................... 13
5.2
Battery replacement ...................................................................................................... 13
5.3
Cleaning ........................................................................................................................ 13
5.4
End of life ...................................................................................................................... 13
6
TECHNICAL SPECIFICATIONS ................................................................................ 14
6.1
Characteristics ............................................................................................................... 14
6.1.1
Safety ........................................................................................................................................ 15
6.1.2
General data ............................................................................................................................. 15
6.2
Environmental conditions ............................................................................................... 15
6.2.1
Climatic conditions .................................................................................................................... 15
6.3
Accessories ................................................................................................................... 15
6.3.1
Standard accessories ............................................................................................................... 15
7
SERVICE .................................................................................................................... 16
7.1
Warranty conditions ....................................................................................................... 16
7.2
Service .......................................................................................................................... 16