B5C Operation And Maintenance Manual
85950-301-000 RA
Aug. 05, 2016
5
2. Installation
2.1 Enclosures Physical Dimensions
The enclosure is a NEMA 4 rated enclosure and can be wall mounted with 4 screws. To
maintain the NEMA rating, it is important that the conduit opening is sealed upon
installation.
2.2 Location
The transmitter should be mounted where the gas to be measured is most likely to be
present. This location will be dependent on the source of the target gas and whether that
gas is lighter or heavier than air. Air circulation and mixture should also be taken into
account.
CO gas is lighter than regular air, it can be mounted on the walls at least a couple of feet
below the height of the ceiling. As the transmitter has a digital read-out, placing it at
about eye level is strong recommended.
The location should be accessible for the purposes of routine re-calibration and periodic
sensor replacement. Sufficient room should be left to allow the enclosure cover to be
removed and the connection of the calibration adapter to the sensor chamber. For sensor
element replacement there will need to be enough room to remove enclosure cover and
the sensor board assembly.
NOTE: The transmitter can also be installed in limited outdoor environment - An
ambient air environment that is not climate controlled and is not in direct contact
with the elements of nature, such as wind, rain, sleet or snow. Examples of limited
outdoor environments include parking garages, construction complexes, sports
venues, boats and recreational vehicles.
NOTE: Avoid mounting the transmitter near 600 VAC switchgear and other
sources of radio frequency and/or electromagnetic interference. While RFI/EMI
