PureAire Monitoring Systems, Inc.
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3: Installation
3.1 Site Requirements
The Air Check Methyl Bromide monitoring system should be mounted in an area free of vibration and
electrical noise or interference. If possible, avoid areas with continuous high temperatures or relative
humidity.
The unit should be installed in a location where gas leaks are likely to occur or where released gases
may accumulate. Airflow within the monitored area, the characteristics of the target gas (lighter or
heavier than air), and the position of workstations and personnel should all be considered in
determining the most suitable installation location.
Allow sufficient space around the instrument to permit access for maintenance and calibration.
NOTE: The Air Check Methyl Bromide Monitor is NOT designed for installation in hazardous
areas.
3.2 Mounting
The Air Check is designed primarily for wall mounting and should be installed no closer than 36 inches
(915 mm) above floor level. If mounted outdoors, keep direct sunlight off of the enclosure.
3.3 Sensor Installation
IMPORTANT: Be careful not to turn the sensor or touch the membrane on the bottom of the sensor
during installation.
CAUTION: The target gas is factory programmed and cannot be adjusted in the field. Failure to
install the correct sensor in the instrument will adversely affect detection reliability and/or
measurement accuracy.
1.
Remove the front cover by turning the cover counter clockwise.
2.
Remove the sensor shorting plug.
3.
Plug the Methyl Bromide sensor into the flow chamber inside the instrument housing.
NOTE:
Do not twist the gas sensor inside the flow chamber. This may loosen the sensor cell box
nut on H type renewable sensor cells.
IMPORTANT:
Remove the shorting plug from the sensor cell connector before connecting the
sensor cell to the transmitter.
Insert the sensor cell
into the flow
chamber by pushing
the sensor cell down
until it seats inside
the O-ring.
Never twist the
sensor cell inside
the flow chamber.
