Chapter II
Portable digital multimeter
19
CONTENTS
1. GENERAL INSTRUCTIONS................................................................................................................. 20
1.1. Precautions and safety measures .................................................................................................. 20
1.2. Protection devices .......................................................................................................................... 21
1.3. Safety devices ................................................................................................................................ 22
1.4. Warranty ......................................................................................................................................... 22
1.5. Maintenance ................................................................................................................................... 24
1.6. Unpacking - Repacking .................................................................................................................. 22
2. DESCRIPTION...................................................................................................................................... 23
2.1. Selector switch ............................................................................................................................... 23
2.2. Keypad............................................................................................................................................ 23
2.3. Display ............................................................................................................................................ 23
2.4. Power supply .................................................................................................................................. 23
2.5. Input terminals ................................................................................................................................ 23
3. COMMISSIONING ................................................................................................................................ 24
3.1. Connecting the test leads............................................................................................................... 24
3.2. Switching on the instrument ........................................................................................................... 24
3.3. Switching off the instrument ........................................................................................................... 24
3.4. Special configurations .................................................................................................................... 24
3.5. Multimeter maintenance ................................................................................................................. 25
4. FUNCTIONAL DESCRIPTION ............................................................................................................. 26
4.1. SEL/ON key................................................................................................................................... 26
4.2. RANGE key .................................................................................................................................... 29
4.3. REL key .......................................................................................................................................... 29
4.4. Pk +/- key........................................................................................................................................ 29
4.5. HOLD key ....................................................................................................................................... 29
4.6. ZOOM key ...................................................................................................................................... 29
4.7. SURV key ....................................................................................................................................... 30
4.8. Hz key............................................................................................................................................. 30
4.9. PRINT key ...................................................................................................................................... 30
4.10. key .......................................................................................................................................... 30
5. TECHNICAL SPECIFICATIONS .......................................................................................................... 31
5.1. DC voltages .................................................................................................................................... 31
5.2. AC voltages (AC and AC+DC) ....................................................................................................... 31
5.3. DC current ...................................................................................................................................... 32
5.4. AC currents (AC and AC+DC)........................................................................................................ 32
5.5. Resistance / Continuity................................................................................................................... 33
5.6. Capacitance.................................................................................................................................... 33
5.7. Diode threshold voltage measurement .......................................................................................... 34
5.8. Frequencies.................................................................................................................................... 34
5.9. Duty cycle %+, %- .......................................................................................................................... 34
5.10. Temperature function ................................................................................................................... 35
5.11. dB function.................................................................................................................................... 35
6. GENERAL SPECIFICATIONS.............................................................................................................. 36
6.1. Accessories .................................................................................................................................... 37
