Changing The Fuses; Technical Data And Measurement Tolerances - Conrad VC630 Notice D'emploi

Used batteries are to be treated as waste requiring special handling and
must therefore be disposed of without harming the environment. Speci-
al collection bins are provided for this purpose at specialist retailers and
in waste-recovery yards..

6.3 Changing the fuses

Observe the safety instructions without fail when changing fuses!
Make sure that only fuses of the given types and nominal current ratings
are used as replacements. The use of repaired fuses or the bridging of
fuse holders is not permitted. To change the fuses, disconnect the
measuring instrument from the circuit being measured and switch it off.
Remove all connected leads, adapters and test probes. Take a suitable
cross-head screwdriver and carefully open the case (refer also to 6.2
Changing the battery).
In this connection, note the following illustration:
Opening the unit and location of fuses F1 and F2
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F2 = 20 A
F2
F1 =500 mA
F1
Remove the defective fuse(s) and replace these with identical types and
nominal current ratings.
For fuse F1 (for the mA-range): 0.5 A, quick-blow, 250 V; usual
description: F0.5A/250 V or F500mA/250V (size: 5 x 20 mm).
For fuse F2: 20 A, quick-blow, 250 V; usual description: F20A/250 V (size:
6.3 x 32 mm). To fit/replace the 20A fuse, the printed circuit board must
be removed. The fuse holder can be found on the component side of the
PCB.
Having successfully changed the fuse(s), carefully close and screw the
case once more, in reverse order.
Only put the measuring instrument into operation once again when the
case is securely closed and screwed.
6.4 Positioning (inclining) the measuring instrument
On the rear of the measuring instrument case is a fold-out stand. Using
this, the measuring instrument can be placed into an inclined position,
facilitating readings.

7. Technical data and measurement tolerances

7.1 Technical data
Display.......................................: 3 3/4-digit (3999) LCD (liquid crystal
display) and two (simultaneous) sub-
displays with VC 630 and VC 650, or 3
(simultaneous) sub-displays with VC
670.
Frequency of measurements ...: Digital indicator; 4 measurements per
second
Bar graph indicator; 7 measurements
per second
Input resistance ........................: Greater than 10 MOhm
Back-lighting.............................: (VC 670 only) 60 s max. (current
consumption approx. 30 mA)
Auto power off.........................: after approx. 30 minutes
Incorrect button pressed..........: "E.r.r" possible, with continuous
acoustic tone (switch off and on again)
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