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1. Precautions for Use
Introduction
Thank you for purchasing the "In-line refractometer PRM-
100α". Before using your PRM-100α, read this
instruction manual carefully, and understand how to use it. After reading this manual, keep it on hand for future
reference.
In this manual "For safe use" describes the important items necessary for safety. Read it carefully.
For safe use --- Be sure to observe the following.
This operation manual describes the items which you are required to observe in order to use the
PRM-
100αsafely, to prevent injury to you and other people and damage to your property. The explanation of the
indications and symbols of those items are as follows. Understand them first and then read the following pages
to use your PRM-
100α correctly.
Explanation of indications
WARNING
If this indication is neglected and the instrument is handled incorrectly, serious
injury or death may result.
CAUTION
If this indication is neglected and the instrument is handled incorrectly, injury
and/or property damage may result.
Explanation of symbols
This symbol denotes an item of which to be warned or cautioned.
The contents of warning are described in detail in or near the △.
This symbol denotes an action that must not be performed (a prohibited item).
The contents of prohibition are described in detail in or near the ○.
This symbol denotes an action that must be performed.
The contents of instruction are described in detail in or near the ●.
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