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 power supplies, which includes an AGM battery (BP84 84 Ah 12 V Sealed Rechargeable Battery) and a large solar panel (SP370-L 370 W Solar Panel). As an additional benefit, Campbell Scientific provides full support of the SunSaver MPPT.Read More
An installation, operation and maintenance manual is available from the manufacturer of the 38898.
The 38898 regulator is re-programmed at Campbell Scientific to have an 8.5 Vdc low voltage disconnect (LVD) to protect the data instead of the battery. It can be programmed using pn 34540 and MorningStar MSView software.
Note that units shipped prior to January 2022 had the LVD set to 6 Vdc.
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 8.5 V and the LVR to 10.0 V. 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)|
Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
|CR1000 (retired)||The CR1000 is not compatible in terms of communication.|
|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.|
|CR350||The CR350 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.