EMS 1304, Инструкция по установке и эксплуатации

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Section 2
INSTALLATION CONSIDERATIONS
Choose an installation site
The primary considerations for choosing a site for the Model 1304 are accessibility, ambient environmental
conditions, and locating the unit to obtain a representative sample of the process. Review the excerpt from the
Federal Register in appendix for suggestions before selecting an installation site. The following general guidelines
should also be considered.
Accessibility
Locate the instrument that provides 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 +130o F. (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 b32o to 122o F. 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
Locate the transceiver more than two stack diameters down from the stack exit is recommended.
INSTALLATION – MECHANICAL
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 the
horizontal plane; the transceiver cannot be rotated more than +/- 10 o from vertical. The weather covers must be
installed vertically plumb.
Installation and wiring diagrams are found at the end of this manual. Please review all drawings prior to starting
installation or wiring. If you have any questions please contact our service department for assistance at 203-935-
0102 ext. 14
Sensors height from Platforms, walk way/ decks, etc,
A platform or walkway must be available for access to the weather covers. The optimum condition would have
the mounting flanges and weather covers approximately 5 feet up from the floor, but in all cases, a minimum of
12 inches from the bottom of the weather cover to the floor is required to remove the air filters. Railings and
other obstructions should allow the weather cover to swing clear as shown in the installation drawings.