Metrix MX 57 EX Notice De Fonctionnement page 31

Chapter II
3.5. Multimeter maintenance
Any internal intervention can only be performed outside the danger zone.
3.5.1. Fuse self-test
When the intrinsically safe F1 fuse (0.500 A ; 125 V) is blown, the display shows "FUSE"
accordingly.
Replace the fuse.
"
Fuse F1 cannot be tested unless the switch is set to the µ µ µ µ A mA position.
Note
3.5.2. Battery self-test
When the "BAT" indication is displayed continuously on the display, the instrument still
has approximately 10 hours of operation (in V
be guaranteed.
Replace the battery.
3.5.3. Replacing the battery or fuse
When changing parts (performed outside the danger zone only), check that a fuse of the
correct calibre and specified type is used.
Use of a non-compliant fuse and short-circuiting of the fuse holder are strictly prohibited.
Use only a 9 V battery (6LF22, 6LR61) verified as being on the certified list. It is
prohibited to use batteries other than those specified.
Certified batteries : ENERGIZER
Certified fuse :
Open the multimeter casing as follows (refer to last page of the manual) :
1. Remove the stand from the back of the instrument.
2. Remove the SECUR'X cover using the stand.
3. Remove the front cover using the stand as a lever.
4. Remove the flexible seal.
5. Unscrew the screw maintaining the sealed casing located under the movable
panel.
6. Replace the battery or fuse.
Before using the unit, check that the flexible seal and the upper case cover are carefully
repositioned.
3.5.4. Cleaning
Clean the multimeter using a damp cloth and soap. Let it dry before using. Do not use
abrasives or solvents.
Intrincally safe portable digital multimeter
ENERGIZER
DURACELL
DURACELL ULTRA 6LR61,
intrinsically safe fuse 0,5 A, 125 V
LITTLEFUSE : part-number 259.500
mode), but specifications can no longer
DC
6LR61, 6AM6
6LF22, 6AM6
6LR61, MN1604
MN1604
X02137A00 - Ed. 1 - 12/01
Figures 2 and 3
Figure 4
Figure 5
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