How This Manual is Organized Cha
ter One: General Information
6
How This Manual is Organized
This manual provides instructions on how to set up and install a 640 Series unit.
Before installing your 640 Series unit in a system and/or operating it, familiarize yourself
with all precautionary notes in the Safety Messages and Procedures section at the front of
this manual. Observe and obey all
WARNING
and
CAUTION
notes provided in the manual.
Chapter One: General Information
, (this chapter) introduces the product and describes the
organization of the manual.
Chapter Two: Installation
, explains the environmental requirements and describes how to mount
the instrument in your system.
Chapter Three: Overview
, gives a brief description of the instrument and its functionality.
Chapter Four: Operation,
describes how to use the controller with all its functions and features.
Appendix A: Product Specifications
, lists the specifications of the instrument.
Appendix B: Valve Orifice Selection,
presents the information used to select the appropriate flow
range for nitrogen and other gases.
Appendix C: Gas Density Table,
lists the standard density of commonly used gases.
Appendix D: Model Code Explanation,
explains how the model number of your 640 controller
lists the features included in the unit.
Manual Conventions
The following conventions apply throughout this manual:
XXXXXX
For inputs:
Indicates that the line must be pulled low to activate the function.
XXXXXX
For outputs:
Indicates that the output is active low.
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