32
16. Cleaning the Prism
WARNING
◇ Before running hazardous substance(s) through any system, necessary
precautions should be taken to ensure the safe handling of the
hazardous substance(s). If using a sample inlet unit, use caution when
disconnecting the instrument unit.
CAUTION
◇ Cleaning liquids up to 160℃ can be used for CIP or SIP.
The momentary difference between the sample liquid temperature and
the cleaning liquid temperature must be no more than 80℃.
When using cleaning liquids at temperatures over 160℃, the power
source (DC24V) must be turned off. If the AD-32 (AD-33 or AD-34) is
used, unplug from the outlet before cleaning.
① Detach the clamp band that
connects the main unit to the sample
inlet unit, piping or tank.
② Clean the prism surface carefully
with a soft tissue soaked with warm
water or ethyl alcohol. If the sample
solution contains oil or grease, use
ethyl alcohol to ensure the prism
surface does not develop a film.
Development of a film on the prism
could cause erroneous
measurements.
③ NEVER clean the prism with an
abrasive material.
Cleaning the prism with an abrasive
material could cause scratches on
the prism which could lead to
erroneous measurements.
④ After cleaning is complete, re-attach
the instrument unit to the sample
inlet unit, piping or tank.
The procedure is described on page
14 of this instruction manual.
Fig. 16-1
Lukewarm
water
Ethyl
alcohol
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