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SECTION 2. INSTALLATION
2.1. Installation Considerations
2.1.1. Warnings and Cautions
WARNING: Explosion hazard! Do not mount the SZ monitor in an area that may contain
flammable liquids, vapors or aerosols. Operation of any electrical equipment in such an
environment constitutes a safety hazard.
WARNING: Shock hazard! Always disconnect AC power before working inside
the monitor.
CAUTION: Drilling holes in the SZ enclosure may damage the unit and will void the
warranty. Please use knockouts provided for electrical connections.
CAUTION: The SZ unit contains sensitive electronic components that can be easily
damaged. Be careful not to touch or disturb any of these components.
2.1.2. Inspection
The SZ monitor has been thoroughly inspected and tested prior to shipment from the factory.
Nevertheless, it is recommended that the monitor be re-checked prior to installation. Inspect the outside
of the enclosure to make sure there are no obvious signs of shipping damage. Open the enclosure and
inspect the interior of the monitor for loose components that may have become dislodged during
shipment. If damage is discovered, please contact the nearest Bacharach Service Center for assistance.
2.1.3. Location of the Monitor
Place the monitor in a location that will require no more than 500 ft (152.4 m) of tubing (total of sample
line + exhaust) to reach the sampling area. The ammonia monitor typically requires a purge air line
(maximum of 100 feet). The halogen monitor uses ambient air to zero its gas sensor, so the monitor
should be located in an area that normally does not contain gas. If an exhaust line is not used, locate the
monitor in a well ventilated area so that the exhaust gas does not accumulate around the monitor's
ventilation holes. An exhaust line can be up to 100 feet in length.
The SZ unit should be operated in an environment that is between 32 and 122°F (0 and 50°C); has a
relative humidity that is from 5 to 90% non-condensing; and is at an altitude of no more than 6,562 ft
(2,000 m). The area should also be relatively free of dirt, grease, and oils that could adversely affect the
operation of the monitor.
The location should allow the monitor to be easily accessible for visual monitoring and servicing.
2.2. Mounting Instructions
The SZ monitor should be installed plumb and level and securely fastened to a rigid mounting surface.
The enclosure utilizes keyhole mounting designed for ¼ inch fasteners. Install the four screws as
displayed in the diagram below or by using the provided mounting template. Allow the screw heads to
protrude approximately ¼ inch.
P/N: 3015-4256 Rev 13
Single Zone Gas Monitor
7
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