Chapter II
Benchtop multimeter
25
USER'S MANUAL
CONTENTS
1. GENERAL INSTRUCTIONS ........................................................................................................................26
1.1. Precautions and safety measures .........................................................................................................26
1.2. Protection devices .................................................................................................................................27
1.3. Safety devices .......................................................................................................................................27
1.4. Warranty ................................................................................................................................................28
1.5. Maintenance and metrological verification.............................................................................................28
1.6. Unpacking - Repacking..........................................................................................................................28
1.7. Cleaning.................................................................................................................................................28
2. DESCRIPTION .............................................................................................................................................29
2.1. Selector switch.......................................................................................................................................29
2.2. Keypad...................................................................................................................................................29
2.3. Display ...................................................................................................................................................29
2.4. Power supply .........................................................................................................................................30
2.5. Measurement input terminals.................................................................................................................30
2.6. RS 232 connector ..................................................................................................................................30
2.7. Tilt stand ................................................................................................................................................30
3. COMMISSIONING ........................................................................................................................................31
3.1. Connecting the test leads ......................................................................................................................31
3.2. Switching on, switching off the instrument .............................................................................................31
3.3. Special configurations............................................................................................................................31
3.4. Multimeter maintenance.........................................................................................................................31
4. FUNCTIONAL DESCRIPTION.....................................................................................................................32
4.1. SEL key.................................................................................................................................................32
4.2. RANGE key ...........................................................................................................................................34
4.3. REL key .................................................................................................................................................34
4.4. Pk +/- key...............................................................................................................................................34
4.5. MEM key ................................................................................................................................................34
4.6. ZOOM key .............................................................................................................................................35
4.7. SURV key ..............................................................................................................................................35
4.8. Hz key ....................................................................................................................................................35
4.9. PRINT key .............................................................................................................................................35
5. RS232 SERIAL LINK ...................................................................................................................................36
5.1. General description................................................................................................................................36
5.2. Link caracteristics ..................................................................................................................................36
5.3. Starting up the serial link........................................................................................................................36
5.4. Remote programming of the multimeter by a computer ........................................................................37
6. TECHNICAL SPECIFICATIONS..................................................................................................................44
6.1. DC voltages ...........................................................................................................................................44
6.2. AC voltages (AC and AC+DC)...............................................................................................................44
6.3. DC current .............................................................................................................................................45
6.4. AC currents (AC and AC+DC) ...............................................................................................................45
6.5. Resistance / Continuity ..........................................................................................................................46
6.6. Capacitance ...........................................................................................................................................46
6.7. Diode threshold voltage measurement ..................................................................................................47
6.8. dB function .............................................................................................................................................47
6.9. Resistive power function ........................................................................................................................47
6.10. Frequencies .........................................................................................................................................47
6.11. Duty cycle: %+, %-...............................................................................................................................48
6.12. Positive (
) or negative (
) pulse count ...........................................................................................48
6.13. Positive (
) or negative (
) pulse width...........................................................................................48
7. GENERAL SPECIFICATIONS .....................................................................................................................49
7.1. Accessories ...........................................................................................................................................50
