User Manual

16 GMC-I Messtechnik GmbH
13 Maintenance
Attention!
!
Disconnect the instrument from the measuring circuit
before opening to replace batteries or fuses!
13.1 Battery
Make sure that no battery leakage has occurred before initial
start-up, and after long periods of storage. Continue to
inspect the batteries for leakage at short, regular intervals.
If battery leakage has occurred, carefully and completely
clean the electrolyte from the instrument with a damp cloth,
and replace the batteries before using the instrument.
If the symbol appears at the display , the batteries should
be replaced as soon as possible. You can continue working
with the instrument, but reduced measuring accuracy may
result.
The instrument requires 2 x 1.5 V AA size batteries or two
equivalent NiCd rechargeable batteries.
Replacing the Battery
➭ Set the instrument face down onto a flat working surface,
loosen the two screws at the back and lift off the housing
base, starting at the bottom. The housing top and
housing base are held together with the help of snap
hooks at the top front.
➭ Remove the batteries from the battery compartment.
➭ Insert two new 1.5 V AA size batteries into the battery
compartment, making sure that the plus and minus poles
match up with the provided polarity symbols.
➭ Important for reassembly: First set the housing base onto
the housing top and align accurately (see photo below).
Then press the two housing halves together, first at the
bottom front (a), and then at the top front (b).
➭ Secure the housing base with the two screws.
➭ Please dispose of depleted batteries in accordance with
environmental protection regulations!
13.2 Fuses
If one of the fuses blows, this condition is displayed at the
LCD as soon as a measured quantity with a voltage of greater
than 4 V is applied to the corresponding connector jacks. The
following symbol appears at the digital display in this case:
.
The 16 A fuse interrupts the 6 A and 10 A ranges, and the
1.6 A fuse interrupts all other current measuring ranges. All
other measuring ranges remain functional.
If a fuse should blow, eliminate the cause of overload before
placing the instrument back into service!
Replacing the Fuse
➭ Open the instrument as described under “Replacing the
Battery”.
➭ Remove the blown fuse with the help of an object such
as a test probe, and replace it with a new fuse.
The following fuses are approved for use:
– For current measuring ranges up to 600 mA:
Type FF 1.6 A / 1000 V AC (10 kA),
6.3 mm x 32 mm
– For 6 A and 10 A current measuring ranges:
FF 10 A/1000 V AC (30 kA),
10 mm x 38 mm
Attention!
!
Use specified fuses only! If fuses with other blowing
characteristics, other current ratings or other
breaking capacities are used, the operator is placed
in danger, and protective diodes, resistors and other
components may be damaged.
The use of repaired fuses or short-circuiting the fuse holder is
prohibited.
13.3 Housing
No special maintenance is required for the housing. Keep
outside surfaces clean. Use a slightly dampened cloth for
cleaning. Avoid the use of cleansers, abrasives and solvents.
Device Return and Environmentally Compatible Disposal
The instrument is a category 9 product (monitoring and
control instrument) in accordance with ElektroG (German
Electrical and Electronic Device Law). This device is not
subject to the RoHS directive.
We identify our electrical and electronic devices (as
of August 2005) in accordance with WEEE 2002/96/
EG and ElektroG with the symbol shown to the right
per DIN EN 50419.
These devices may not be disposed of with the trash. Please
contact our service department regarding the return of old
devices (see chapter 14).
(b) (a)