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Replacing the battery:
• Disconnect the measuring device from live components and pull off the measuring cables.
• Unscrew both screws at the back of the housing.
• Remove the rear part of the housing.
• Now lift the 9 V battery from the holder and replace it with a new one.
• Avoid touching the printed circuit board or any parts attached to it, as this may cause damage.
• Close the cover and firmly tighten the screws of the housing.
Replacing the fuse:
The multimeter is protected by two fuses (F1 250mA/250V fast, Ø 5x20mm and F2 10A/250V, fast,
Ø 5x20mm). To replace it, proceed as follows:
• Disconnect the measuring device from live components and pull off the measuring cables.
• Unscrew both screws at the back of the housing.
• Remove the rear part of the housing.
• Lift the fuse from its socket with tweezers or a screwdriver.
• Insert a new fuse with the same specifications into the socket.
• Avoid touching the printed circuit board or any parts attached to it, as this may cause damage.
• Close the cover and firmly tighten the screws of the housing.
Cleaning
Before cleaning the device, it is essential that you observe the following safety instructions:
When opening covers or removing parts (unless these can be opened or removed by
hand), live parts may be exposed. Before carrying out any cleaning or repair work, the
connected cables must be disconnected from the measuring device and all objects to
be measured. Switch off the "EM393B". Do not use carbon-containing cleaning agents,
benzines, alcohols or the like for cleaning. These substances have a damaging effect
on the surface of the measuring device. Moreover, the vapours are hazardous to health
and explosive. Do not use any tools with sharp edges, screwdrivers, metal brushes or
the like for cleaning. To clean the device or the display and the measuring cables, use a
clean, lint-free, antistatic and slightly moist cleaning cloth.
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