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Instruction Manual
IM-105-4000, Original Issue
August 2005
OPM 4000
2-2
INSTALLATION
CONSIDERATIONS
Choose an Installation
Site
The primary considerations for choosing a site for the OPM 4000 is
accessibility, ambient environmental conditions, and locating the unit to obtain
a representative sample of the process. The following general guidelines
should be considered.
Accessibility
Locate the instrument where it will provide safe access for periodic
maintenance and inspection. A platform or walkway is required for access to
the sensors and weather covers.
Environment
Locate the stack-mounted units in an area with ambient temperatures
between -4
o
to +130
o
F (-20
ο
to 54
o
C). (Consult the factory for other
temperature ranges.) Areas that are clean and dry are desirable. Avoid areas
with condensation.
Maintenance intervals are directly related to the installation environment.
Intervals can vary from 2 to 3 months in fairly clean environments, to twice a
month in dirty environments. Lens cleaning is a function of the ambient
conditions and cleanliness of the purge air.
Locate the instrument to avoid excessive vibration or shock.
Locate the control unit in an easily accessible area with temperatures
between 32
o
to 122
o
F (0
o
to 50
o
C). To permit the operator to read and/or
change controls, the unit should not be mounted higher than five feet from
floor level.
Stack Exit
It is recommended to locate the transceiver at least two stack diameters from
the stack exit.
MECHANICAL
INSTALLATION
Drawing Notes
A review of the drawings and procedures provided will help to produce an
error free installation. However, there are important additional points that must
be observed. The beam of the instrument must be kept in a horizontal plane;
the transceiver cannot be rotated more than ±10
o
from vertical. The weather
covers must be installed vertically level.
Installation and wiring diagrams are found at the end of this manual. Please
review all drawings prior to starting installation or wiring.
Platforms
A platform or walkway must be available for access to the weather covers.
The optimum condition is to have the mounting flanges and weather covers
approximately 5 feet (1,5 m) above the floor. A minimum of 12 in. (305 mm)
from the bottom of the weather cover to the floor is required in order to
remove the air filters. Railings and other obstructions should allow the
weather cover to swing clear as shown in the installation drawings.