Instruction Manual
HT326
EN - 1
Table of Contents:
1. SAFETY PRECAUTIONS AND PROCEDURES .......................................................... 2
1.1. Preliminary ........................................................................................................................ 2
1.2. During use ......................................................................................................................... 3
1.3. After use ............................................................................................................................ 3
1.4. Measuring (overvoltage) categories definitions ................................................................. 3
2. GENERAL DESCRIPTION ........................................................................................... 4
3. PREPARATION FOR USE ........................................................................................... 4
3.1. Initial .................................................................................................................................. 4
3.2. Supply voltage ................................................................................................................... 4
3.3. Calibration ......................................................................................................................... 4
3.4. Storage .............................................................................................................................. 4
4. OPERATING INSTRUCTIONS ..................................................................................... 5
4.1. Instrument - description ..................................................................................................... 5
4.1.1. Front panel .................................................................................................................................. 5
4.2. Description of function keys .............................................................................................. 6
4.2.1. HOLD key ................................................................................................................................... 6
4.2.2. R (RANGE) key .......................................................................................................................... 6
4.2.3. REL key ...................................................................................................................................... 6
4.2.4. SEL key ...................................................................................................................................... 6
4.2.5. Backlight key ( ) .................................................................................................................... 6
4.2.6. Auto Power OFF ......................................................................................................................... 6
4.3. Measurements................................................................................................................... 7
4.3.1. DC Voltage measurement .......................................................................................................... 7
4.3.2. AC Voltage measurement .......................................................................................................... 8
4.3.3. DC Current measurement .......................................................................................................... 9
4.3.4. AC Current measurement ......................................................................................................... 10
4.3.5. Resistance measurement ......................................................................................................... 11
4.3.6. Continuity test ........................................................................................................................... 12
4.3.7. Diode test .................................................................................................................................. 13
4.3.8. Frequency and Duty Cycle measurement ................................................................................ 14
4.3.9. Capacitance measurement ....................................................................................................... 15
5. MAINTENANCE ......................................................................................................... 16
5.1. Batteries and fuse replacement ....................................................................................... 16
5.2. Cleaning .......................................................................................................................... 16
5.3. End of life ........................................................................................................................ 16
6. TECHNICAL SPECIFICATIONS ................................................................................ 17
6.1. Technical features ........................................................................................................... 17
6.1.1. Reference standards ................................................................................................................ 19
6.1.2. General data ............................................................................................................................. 19
6.2. Environment .................................................................................................................... 19
6.2.1. Environmental conditions ......................................................................................................... 19
6.3. Accessories ..................................................................................................................... 19
6.3.1. Standard accessories ............................................................................................................... 19
6.3.2. Optional accessories ................................................................................................................ 19
7. SERVICE .................................................................................................................... 20
7.1. Warranty conditions ......................................................................................................... 20
7.2. After-sale service ............................................................................................................. 20