Campbell CH201, Product Manual

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Table 7-1: CH201 measurements
Measurement Units
Battery voltage V
Battery current A
Load current A
DC In 1 voltage V
DC In 2 voltage V
Temperature °C
Charge state
SDI-12 Response
RS-232 Response/
DI-12 Meaning
–1 “REGULATOR FAULT”
0 “NO CHARGE”
1 “CURRENT LIMITED”
2 “CYCLE CHARGING”
3 “FLOAT CHARGING”
Charge source
SDI-12 Response
RS-232 Response/
SDI-12 Meaning
0 “NONE”
1 "DC In 1"
2 “DC In 2”
Check battery
0 = normal
1 = check battery (battery voltage less
than 10.5 V or battery is open circuit)
Target battery voltage V
Input voltage at maximum power V
Battery capacity Ah
Qloss Ah
The information from the regulator can also be used to calculate power usage by the battery and
the system. Measuring and storing power usage is useful to determine system power
requirements (power budget) and to help identify devices using too much power. A
CH201 12V Charging Regulator 22