Amprobe DM7C Digital-Multimeter - Manual (Page 11)

Fuse replacement
Prior to fuse replacement, disconnect the instrument from any circuits.
Only use fuses of voltage and current values as described in the specifications.
Using auxiliary fuses, in particular short-circuiting fuse holders is prohibited and
can cause instrument destruction or serious bodily injury of operator.
1) Separate the Amprobe multimeter DM7C from any circuit, and remove the test leads.
2) Switch the instrument off and remove the holster.
3) Open the housing by removing the 4 screws on the rear face.
4) Remove the defective fuse
5) Insert a new fuse. Make sure that no wires are trapped between the 2 halves of the
housing, and close it again.
6) The instrument is now ready for further use.
Maintenance
Provided it is used in accordance with the users manual, the instrument needs no spe-
cial maintenance.
Cleaning
If the instrument is dirty after daily usage, it is advised to clean it by using a damp
cloth and a mild household detergent.
Prior to cleaning, ensure that instrument is switched off and disconnected from
external voltage supply and any other instruments connected (such as UUT, con-
trol instruments, etc.).
Never use acid detergents or dissolvants for cleaning.
Calibration Interval
We suggest a calibration interval of one year. If the instrument is used very often or if
it is used under rough conditions we recommend shorter intervals. If the instrument
is used only a few times a year, the calibration interval can be extended to 3 years.
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