De Nora 200 Series, Инструкция по эксплуатации

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2 OPERATION
2.1 General
The remote meter panel is designed to complement the Capital Controls’ Series 200 vacuum regulators.
When multiple chlorine gas feed points from the same vacuum regulator are required, a remote meter
panel is utilized. Each remote meter panel is manually set, via the rate valve, to meter the proper amount of
chlorine gas to the feed point. The combined gas feed rate from the remote meters must not exceed the total
feed rate capacity of the vacuum regulator.
NOTE
: When remote meter panels are desired to be used for gas flow indication only , the rate valve at the
vacuum regulator is used to adjust gas flow. Therefore, if the vacuum regulator has a rate valve, the remote
meter's rate valve should be removed and replaced with a plug.
2.2 Installation - See Figures 1, 2, and 3
The remote meter panel must be installed in an upright and level position in order to function properly.
The remote meter panel is installed in the vacuum line between the ejector and the vacuum regulator. Locate
the meter panel on a vertical surface convenient for observation and operation, usually in the operator’s area,
with the point of chlorine injection at the desired remote location. Mount the meter panel using two (2) 1/4"
mounting screws for a 3" meter panel, or four (4) 3/8" mounting screws for a 6" meter panel. If the surface is
not suitable for wood screws, choose an appropriate anchor bolt to that surface.
Black polyethylene tubing is normally used for the vacuum line. Do not kink this tubing. It may be desirable
to use tubing connectors, tees or 90° elbows to provide as direct run as possible and minimize kinking
conditions. Use enough tubing length to allow movement of the vacuum regulator for servicing or cylinder
change. Connect the tubing as follows:
2.2.1 Remove the bottom vacuum inlet connector nut from the remote meter panel and slip the connector
nut onto the vacuum tubing coming from the vacuum regulator.
2.2.2 Push the tubing onto the tubing connector and tighten the connector nut HAND TIGHT.
2.2.3 Remove the connector nut from the vacuum outlet (top) of the remote meter and slip onto vacuum
tubing going to the ejector.
2.2.4 Push the tubing onto the tubing connector and tighten the connector nut HAND TIGHT.
NOTE : There may be installations where multiple meter panels may be used from one vacuum
regulator. If this occurs, additional tees may be required to complete the installation.
2.2.5 Some meter panels may be provided as a complete block with a common vacuum manifold, Each
meter would have an individual outlet.
General Design Note : Routing vacuum tubing through unventilated conduit is discouraged. A minute
portion of gas flowing through tubing under vacuum conditions, will slowly diffuse at a molecular
level through its walls and collect in the closed conduit over an extended period of time.