Maintenance And Calibration; Technical Data And Measuring Tolerances - Conrad VC 350E Mode D'emploi

7. Maintenance and calibration

To guarantee the accuracy of the multimeter over an extended
period of time, it should be calibrated every twelve months
(calibration service available at Service 2000).
Changing a fuse is described under 3. 3. (Safety requirements).
Battery changing can be found under 5.1.1.
To clean the instrument or the display window, use a clean, lint-
free, anti-static, dry cleaning cloth.
Attention!
Use no carbonaceous cleaners, petrols, alcohols or similar for
cleaning. Otherwise the surfaces of the clip adapters / test leads
can be attacked. In addition, the vapours are explosive and
damaging to health. Do not use any sharp-edged tools, screw
drivers, metal brushes or similar for cleaning.

8. Technical data and measuring tolerances

8.1 Technical data
Display .................................: 3
Maximum measuring rate ...: 2.5 measurements per second
Max. input current AC/DC ...: 20 A
40
/ -position LCD display up to
3
4
4000 (3999), with automatic pola-
rity indication
4 / -position for frequency measure-
1
2
ments
4 / -position "small" display
1
2
with analogue bar graph display
(bar segment display)
Input impedance ..................: 10 MΩ in parallel with 100pF (VDC
Overload indicator ...............: "OL" is displayed for overload
Operating temperature........: 0°C to +40°C, with relative humidi-
Storage temperature............: -10°C to +50°C, with relative humi-
Temperature for guaranteed
accuracy.................................: +23°C ±5K
Battery change indicator .....: "
Battery type ..........................: NEDA 1604 9V or 6F22 9V, alkaline
Weight...................................: approx. 364 g (with 9-V battery)
Dimensions (L X W X H).......: 189 x 90 x 38 mm
8.2 Measurement tolerances
Statement of accuracy in ± (% of the reading + number of digits).
Accuracy 1 year at a temperature of +23°C ± 5°C, with a relative
humidity of less than 75 %, non-condensing. The warm-up time
is 1 minute.
and VAC)
ty < 75%, non-condensing
dity < 75%, non-condensing, bat-
tery not installed
+ -
" is displayed
type
41