Table of Contents
Advertisement
OPM 3000
INSTALLATION
CONSIDERATIONS
Choose an Installation
Site
Accessibility
Clearance
Environment
Sample Area
Stack Exit
2-2
The primary considerations for choosing a site for the OPM 3000 are
accessibility, ambient environmental conditions, and obtaining a
representative sample of the process. The following general guidelines should
be considered.
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. 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.
Installation clearances for the transceiver, retro reflector and optional weather
covers are shown in Figure 2-1.
Locate the stack-mounted units in an area with ambient temperatures
o
o
between -40
to +130
F (-40
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.
Choose a location that will minimize excessive vibration or shock.
Locate the control unit in an easily accessible area with temperatures
o
o
between +32
to 122
F (0
change controls, the unit should not be mounted higher than five feet from
floor level.
To achieve a representative sample, the accepted practice is to have the
measurement path of the instrument directly in the center of the stack. An
area should be chosen where the gases are not stratified in the stack or duct.
When installed near a bend, install the transceiver in the plane defined by the
bend; refer to "Regulatory/Process Considerations". Avoid locations where
large amounts of condensed water is present.
The transceiver should be located a minimum of two stack diameters from the
stack exit. Ideally the transceiver should be installed eight to ten stack
diameters from the stack exit.
o
o
to 54
C). (Consult the factory for other
o
o
to 50
C). To permit the operator to read and/or
Instruction Manual
IM-105-3000, Rev 2.0
November 2008
Advertisement
Table of Contents
