5.2 Voltage regulator
The solar panel must be regulated either with a Campbell Scientific regulator or a third-party
regulator. The regulator has two basic functions:
l
Blocking any current flow from the battery to the solar panel
l
Limiting the source current to the battery
The solar panel must be connected to the voltage regulator, not direct to the storage battery.
Campbell Scientific voltage regulators include the CH201, GRANITE 6, CR6, CH200, CR300, and
CH150. A separate battery is required for these regulators. The PS200 and PS150 regulators
include a 7 Ah battery. The CR3000 has an optional rechargeable base. Two Morningstar
SunSaver regulators are also available from Campbell Scientific.
Consult the product documentation to view the maximum charging current for each regulator.
The regulator and battery must be housed in an environmental enclosure. Mounting brackets are
included with the regulator for attachment to an enclosure backplate.
SP50-L, SP90-L, and SP305-L Solar Panels
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