Dillon FI-521 User Manual
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FI-521 Indicator Operation & Service Manual
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1. General information and warnings
 
 
1.1 About this manual 
 This manual is divided into chapters1,2.3.... Subsections are labeled as shown by the 1.1 and 
1.1.1 headings. The manual name appear at the top of the pages and page numbers appear at 
the bottom of the pages. 
 
 
1.1.1 Text conventions 
Key names are shown in bold and reflect the case of the key being described. This applies to 
hard keys and onscreen or soft keys. 
 
 
1.1.2 Special messages 
Examples of special messages you will see in this manual are defined below. The heading 
words have specific meanings to alert you to additional information or the relative level of 
hazard. 
DANGER! 
THIS IS A DANGER SYMBOL. 
DANGER MEANS THAT FAILURE TO FOLLOW SPECIFIC PRACTICES OR PROCEDURES 
WILL CAUSE INJURY OR DEATH. 
 
 
ELECTRICAL WARNING!
THIS IS AN ELECTRICAL WARNING SYMBOL.
ELECTRICAL WARNINGS MEAN THAT FAILURE TO FOLLOW SPECIFIC PRACTICES OR 
PROCEDURES MAY REAULT IN ELECTROCUTION, ARC BURNS, EXPLOSIONS OR 
OTHER HAZARDS THAT MAY CAUSE INJURY OR DEATH. 
 
 
WARNING! 
This is a Warning symbol. 
Warnings mean that failure to follow specific practices and procedures may have major 
consequences such as injury or death. 
 
 
CAUTION! 
This is a Caution symbol. 
Cautions give information about procedures that, if not observed, could result in 
damage to equipment or corruption to and loss of data. 
NOTE: This is a Note symbol. Notes give additional and important information, hints and tips 
that help you to use your product. 
 
 
 
1.2 Installation 
 
 
DANGER: RISK OF ELECTRICAL SHOCK. NO USER SERVICEABLE PARTS. REFER TO 
QUALIFIED SERVICE PERSONNEL FOR SERVICE. 
 
 
 
 
 
