The 38898 consists of a Morningstar 15 A charge regulator that has been re-configured by Campbell Scientific and includes the mounting hardware to mount it to a 2.54 cm (1 in.) grid back panel. This charge controller is well suited for large solar panels, such as the SP305-L 305 W Solar Panel. As an additional benefit, Campbell Scientific provides full support of the SunSaver MPPT.
The 38898 uses maximum power point tracking. While the 38898 is capable of RS-232, Modbus, and USB communications, only RS-232 communication is supported through the hardware. Note: When reading parameters off the 38898 using a data logger, you must use the CPI/RS-232 port. This functionality does not work when using the control ports.
The 38898 offers the ability to select the battery type: gel, sealed, AGM, or flooded. To set the battery type, use a jumper and switch #1.
The 38898 offers programmable low voltage disconnect (LVD). From the manufacturer, the 38898 comes with an 11 V LVD when switch #2 is on and an 11.5 V LVD when switch #2 is off. At Campbell Scientific, we prioritize data over battery health and reconfigure the LVD to 6 Vdc when switch #2 is on, and we ship the 38898 with switch #2 on. When switch #2 is off, an LVD of 11.5 Vdc is used. Caution: Draining a battery below 11.5 V will shorten the life of the battery.
|Operational Temperature||-40° to +60°C|
|Storage Temperature||-55° to +100°C|
|Battery Voltage Range||7 to 36 V (power out)|
|Maximum Input Voltage||60 V|
|Quiescent Current||35 mA|
|Weight||589.67 g (1.3 lb)|
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
|CR1000X||The CR1000X is compatible in terms of communication.|
|CR300||The CR300 is compatible in terms of communication.|
|CR310||The CR310 is compatible in terms of communication.|
|CR6||The CR6 is compatible in terms of communication.|
The 38898 can be used to power any 12 V device. Refer to the Compatibility information on the web page regarding communication compatibility with data loggers.