Symbols and terms used in this manual:
This indicates a warning. It provides safety precauon informaon needed to avoid
injury while operang the refractometer system.
This indicates that something is important for the operaon of the refractometer sys-
tem.
Note. Notes contain addional informaon and hints.
Warning! The process medium may be hot or otherwise hazardous.
Precauons when removing the sensor from the process line:
Make posively sure that the process line is not under pressure. Open a vent valve to the
atmosphere.
For a prism wash system, close a hand valve for the wash medium and disable the wash valve.
Loosen the clamp cauously, be prepared to ghten again.
Be out of the way of any possible splash and ensure the possibility of escape.
Use shields and protecve clothing adequate for the process medium, do not rely on avoidance
of contact with the process medium.
Aer removal of the sensor, it may be necessary to mount a blind cover for security reasons.
THE PASSWORD FOR PR-23 IS 7 8 4 5 1 2
This product manual is delivered to the end user with a K-Patents product. Informaon in this
manual is subject to change without noce. When the manual is changed, a revised copy is
published at hp://www.kpatents.com/.
Document/Revision No. IM-EN-PR23/Rev. 1.88 Effecve: February 15, 2016