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Installation
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3.4.4 Vent Line Connection
The vent line connection for the bubble glass is placed right below the sample ports. It is
for the connection of an external vent line which allows venting the sampled inert gas
from the bubble glass to the outside air. The vent line must be dimensioned to allow a gas
flow of at least 10 l/min and arranged in such a way that it avoids backpressure and se-
cures a sufficient sample gas flow (i.e. bubbles in the water). The vent line must be unin-
terrupted and easily bring away the inert gas.
3.4.5 Analyzer and Electrical Connection
The instructions for electrical connections of the analyzer are described in section 3.4 in
the analyzer manual.
3.4.6 Digital Flow Switch (Optional)
If the sampling board is configured with a digital flow switch, please see the enclosed
leaflet for installation and operating instructions.
3.5 Double Sampling Board
The double sampling board is designed for an analyzing system with the configuration of
two sensors and two oxygen analyzers for inert gas.
The double sampling board consists of a single sampling board described in the previous
section and an extension board mounted on the right hand side of the single board. This
extension board consists of a mounting panel, an oxygen analyzer, and a selector box for
switching output signals between the two analyzers.