Trouble-Shooting
With the Manual R.P.M. Counter you have acquired a state-of-the-
art product. There may be troubles or problems, nevertheless. The-
refore, we would like to explain to you how you can clear possible
troubles:
Problem
Possible Cause
No display, although
Is the battery low?
instrument is switched on
Laser does not function
Is the mode selector in the position
"PHOTO”?
Measured value too low
Do the adapters have enough
contact during measuring?
Maintenance
The Manual R.P.M. Counter is maintenance-free except for the
need to replace the battery and to clean the housing and the lens (of
the display window) from time to time. Please use a clean, fluff-free
antistatic cloth for cleaning the instrument, for cleaning the lens, use
a cotton bud or a spectacle-cleaning tissue.
Warning!
Do not use carbon-containing cleansing agents
such as benzenes, alcohol etc. as they attack the
surface of the housing. Furthermore, fumes produ-
ced are detrimental to health and explosive. Do not
use any screw-drivers or metal brushes for clea-
ning.
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