2–5
Section 2 — INSTALLATION
2.
7
PRE-INSTALLATION NOTES
2.7a
.
General
The MODLINE 4 is a fixed focus instrument. The
optical components are factory aligned to provide
a fixed optical pattern which determines the size of
measuring area, or what is called the "spot size" at
any given distance from the front flange of the unit.
This is the area the detector in the MODLINE 4 will
"see" on the target surface.
Every step has been taken to ensure accurate
measurements with excellent repeatability. the
optical and electronic systems are factory calibrat-
ed against precision laboratory standards to ini-
tially set their accuracy specification.
If the MODLINE 4 is installed with reasonable
care, it will provide accurate temperature measure-
ments and a long, trouble-free operating life.
Modline 4 instruments are available in standard of
water-cooled castings as shown in Fig. 2.5. The
optical and electrical systems are essentially the
same in both versions. Any differences that affect
installation or operation will be pointed out in the
following instructions.
WATER
FITTINGS
MOUNTING
FLANGE
MOUNTING
FLANGE
CONDUIT
HUB
CONDUIT
HUB
AIR FITTING
LENS
LENS
FIG. 2.5 – MODLINE 4 STANDARD AND WATER-COOLED CASTINGS
Risk of Personal Injury
When this instrument is being used in a critical
process that could cause property damage and
personal injury,
The user should provide a
redundant device or system that will initiate a
safe process shutdown in the event that this
instrument should fail.
The user should follow
NEMA safety guidelines in the appendix.
!
!
CAUTION
Summary of Contents for Modline 4
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