INVUE GV148 LIQUID CHEMICAL CONCENTRATION MONITOR
3
User Guide | Entegris, Inc.
INTRODUCTION
—
Entegris, Inc. provides the enclosed product manual
for the user’s information.
Prior to using this manual, the user should verify with
the product manufacturer that the user has the most
recent copy of the product manual.
This manual is owned by Entegris, Inc., an affiliated
company, or its suppliers and title shall not pass to
the user with use of the manual.
LIABILITY OWNERSHIP
—
Read the following carefully before continuing:
In no event shall Entegris or its suppliers be liable for
any damages whatsoever (including, without limitation,
damages for loss of business profits, business interrup-
tion, loss of business information or any pecuniary loss)
arising out of the use or inability to use this manual,
even if Entegris has been advised of the possibility of
such damages.
GENERAL MANUAL NOTES
—
CHANGES TO THE MANUAL
The manufacturer reserves the right to make changes
to the product covered in this manual to improve
performance, reliability, or manufacturability.
Although every effort has been made to ensure accu-
racy of the information contained in this manual, the
manufacturer assumes no responsibility for inadvertent
errors. Contents of the manual are subject to change
without notice.
INTENDED AUDIENCE
This manual is intended for technicians familiar with
the proper handling of chemical and other potentially
hazardous materials. Users must also be familiar with
installing and using software on a computer running
the Windows
®
operating system.
INTENDED USE/SCOPE
This manual is intended to be used by experienced
technicians for the planning, installation, and operation
of the described InVue
®
GV148 liquid concentration
monitor.
This manual contains basic safety information for
the installation and use of the InVue GV148 liquid
concentration monitor.
WARNING: Mishandling products exposed to a
hazardous substance may result in death or serious
injury. Always follow the recommendations and
guidelines provided by the chemical suppliers and
manufacturers. Always wear appropriate personal
protection equipment as required for the chemicals
in use. Refer to the Material Safety Data Sheet
(MSDS) for each chemical.
PRINCIPLE OF OPERATION
—
Light from an LED is directed toward the optical window
in contact with the liquid chemical. The light is reflected
off the liquid based on its refractive index and directed
towards the light detector. The intensity of the light
detection determines the refractive index of the fluid.
LED light
source
PDA light
detector
LOW
Light
inten
sity
H
IGH
Optical
window
Liquid
chemical
