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- If there is room to believe that safe operation has become impos-
sible, put the system out of operation and secure it against any
unintended operation. Safe operation must be presumed to be no
longer possible, if
- the product exhibits visible damage
- the does not work any more
- after it was stored under unfavourable conditions for a longer
period of time or
- the product was exposed to extraordinary stress caused by
transport.
- Never use the product immediately after it has been brought from
a cold into a warm room. Condensation water that forms might
destroy your measuring instrument. Leave the device switched
off and wait until it has reached room temperature.
Function Description
With the Manual R.P.M. Counter DT2L with integrated laser you can
determine the number of revolutions of revolving machines such as
fans, drives etc. quickly, accurately and contactless. Thanks to the
integrated laser (relatively) accurate point measurements can be
made. The measured r.p.m. is displayed on an energy-saving 5-digit
LCD (liquid crystal display). There are three adapters for contact
measurements:
• an external cone for concave shaft ends,
• an internal cone for shaft journals and
• a friction wheel for measuring belt speeds (ribbon saws, belt grin-
ders, V-belt drives, conveyor belts etc.)
Contactless measuring functions with a photo sensor. The measu-
ring distance is up to 1 m. Power supply is with four 1.5 V mignon
batteries. The Manual R.P.M. Counter can be used universally, e.g.
for professional (not industrial) private, or educational purposes etc.
All manuals and user guides at all-guides.com
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