If there is a wind (>10 m/s) then use the windshield to ensure that the measurement is
not invalidated by wind noise. The windshield does not interfere with measurements.
To facilitate reading of the display during twilight or in darkness, the display of Model SL-200
can be lit up. To do this, press the button with the light symbol (5). Press this button again to
switch off the meter.
When not in use, switch the display lighting and/or the meter off.
11. Maintenance and cleaning
The power units are maintenance-free apart from the need to replace the batteries and cleaning
it once in a while. Use a clean, lint-free, antistatic and slightly damp cloth to clean the device. Do
not use any abrasive or chemical agents or detergents containing solvents.
Replacing the battery
If the battery symbol „BAT“ appears in the display, the batteries have to be replaced as soon as
possible to prevent inaccurate measurements.
Proceed as follows to replace the batteries:
• Switch off the meter.
• Loosen the battery compartment screw on the back of the device, and slide the lid off in the
direction of the arrow.
• Replace the flat battery with a new one of the same type (e.g. 1604A).
• Carefully close the meter in reverse order to its opening
12. Troubleshooting
In purchasing this device you have acquired a product which has been designed with state-
of-the-art technology and is operationally reliable. Problems and malfunctions may, however,
still arise.
For this reason, the following is a description of how you can eliminate possible malfunctions
yourself.
Always adhere to the safety instructions!
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