Chapter II
Portable digital multimeter 19
CO
NTENTS
1. GENERA
L INSTRUCTIONS.................................................................................................................
20
1.1. Precauti
ons 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. D
ESCRIPTION......................................................................................................................................
23
2.1. S
elector switch ...............................................................................................................................23
2.2. Keypad............................................................................................................................................23
2.3. Display............................................................................................................................................23
2.4. Power supply..................................................................................................................................23
2.5. Input terminals................................................................................................................................23
3. C
OMMISSIONING ................................................................................................................................
24
3.1. C
onnecting 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. FUNCT
IONAL DESCRIPTION .............................................................................................................
26
4.1. S
EL/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. T
ECHNICAL SPECIFICATIONS ..........................................................................................................
31
5.1. D
C 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. GENERA
L SPECIFICATIONS..............................................................................................................
36
6.1. A
ccessories ....................................................................................................................................37