Neptune 13458-000, Installation And Maintenance Manual

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The small pole/stand version is for a 2-inch to 4-inch
diameter schedule 40 galvanized steel pole or stand.
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The large pole version is for a 5-inch to 16-inch diameter
pole.
When a site location is near a zone transition line, choose the
larger size solar power system. For example, if the site
location falls on transition line D and E, choose the zone E
solar power system recommendation.
4. For accessories, contact your Neptune sales representative for
the most current information.
Solar Power System Operation Summary
When the installation of the system is complete, you can expect
the following typical performance.
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When sunlight is available, the system begins to charge. The
amount of charging current available depends on the time of
year and the position of the sun in the sky. There is low
charging power in the morning, which gradually increases and
reaches full potential during the middle of the day, then
gradually decreases until the end of daylight. Usually, you can
see both an increase in charging current and in battery voltage
throughout the day.
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The charge controller, located inside the battery enclosure,
regulates the charge.
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In the evening, the Gateway runs strictly from battery.
Throughout the evening the battery discharges but remains at a
safe operating level.
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The system battery is designed to carry the Gateway through
five continuous days of no sunlight availability. This allows
the Gateway to maintain operation without interruption
through extended days without availability of sunlight.
R900 Gateway Installation and Maintenance Guide 81
Appendix A Solar Power Information