Operation Manual

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stubborn marks. Do not use any detergents containing solvents, as they
could corrode the plastic housing and label.
13.2 Changing the fuse
Reversing the polarity of the lead battery or a short circuit/overload at the
switching outputs will blow the internal fuse located next to terminal KL3
underneath a protective cover.
Disconnect the mains voltage before removing the device
front panel.
• Rectify the cause of the error (e.g. a short circuit).
• Unscrew the four screws on the cover and remove the clear cover.
• Unscrew the four plastic screws on the front panel and remove it.
• Remove the fuse’s protective cover (its position is shown on page
7) and replace the fuse with one of the same type
(miniature fuse 5 x 20 mm, 1 A slow-blowing).
• Replace the fuse‘s protective cover, t the front panel and cover and
reconnect the mains voltage.
• Test the function of the device.
13.3 Replacing the battery
Disconnect the mains voltage before removing the device front
panel. Risk of electric shock!
1.
Unscrew the four screws on the cover and remove the clear cover.
2. Unscrew the four plastic screws on the front panel and remove it.
3. Carefully lift the battery out of the housing. Then carefully
disconnect the connecting cable from the terminals.
4. Still proceeding with caution, insert the new battery (of the same
type) into the housing and connect the connecting cable to the
corresponding terminals on the battery. Connect the red cable to
the battery’s positive terminal and the black cable to its negative
terminal. Take care not to damage the connecting cable and do not
make contact with the components on the PCBs inside the device.