GMC-I Messtechnik GmbH
27
Melting Fuse for the mA Range (up to 1 A)
The built-in FF 1.6A/600V AC melting fuse for the measuring circuit up
to 1 A/
can be checked for continuity on the resistance measuring
ranges, preferrably on the
x 1 range. With the measuring sockets
„A|
“ and „
“ shorted, the resistance of the fuse must be indicated to
be approximately 0.5
. If the fuse is defective,
is indicated.
The melting fuse blows when
one of the current measuring
ranges (except for the range
10 A ) or one of the resis-
tance measuring ranges
x 1 ... k
x 10 and higher
is overloaded unpermissibly
high. The fuse is located
immediately behind the „A|
“
connection terminal. Replace
the fuse as follows:
➭
Disconnect the instrument
from the measuring circuit!
➭
Open the bottom part with the housing in closed condition, if possi-
ble. To this end, remove the rubber bases
and pull out the srews.
➭
Remove the defective fuse and replace it with a new one.
➭
Close the housing again by pressing it shut at the bottom first.
➭
After retightening the srews, fix the rubber bases again with a little
bit of adhesive.
Melting Fuse for the 10 A Range
The built-in FF 16A/600V AC fuse for the 10 A measuring circuit can
only be checked for continuity when removed from the device.
Access to the fuse is described above.
➭
Remove the fuse from the fuse holder.
➭
It can be checked for continuity in the
x 1 range.
is indicated if
the fuse is defective.
1,6 A
16 A
Housing bottom, to close press here first
Screws covered by rubber bases
