Samlex Solar SCC-30AB Owner's Manual page 46

6
InstallatIon & operatIon
The Battery Temperature Sensor (BTS) corrects the Absorption, Equalization & Float
Voltage by the following values (reference temperature is 25ºC / 77ºF):
• 12V battery: –0.030V per °C (–0.017V per °F).
• 24V battery: –0.060V per °C (–0.033V per °F).
The temperature sensed by the BTS at the battery is displayed on the LCD screen
under the screen display "Heatsink BTS" (see Screen 7, Fig. 5.3).
capable of displaying negative values, battery temperature below 0ºC will not be displayed. If the
battery temperature falls below 0ºC, the display will read --- ºC and temperature compensation is
disabled.
Variations in battery electrolyte temperature can affect charging, battery capacity, and
battery life. The greater the range of battery temperatures, the greater the impact
on the battery. For example, if the battery temperature falls to 10°C (50°F), this 15°C
(27°F) change in temperature with respective to the reference of 25°C / 77°F will
change the Absorption, Equalization and Float Set Points by 0.90V in a 24V system and
0.45V in a 12V system.
Typical compensation is given in Table 6.2 below:
BATTERy ELECTROLyTE
TEMPERATURE
50ºC / 122ºF
45ºC / 113ºF
40ºC / 104ºF
35ºC / 95ºF
30ºC / 86ºF
25ºC / 77ºF (Reference)
20ºC / 68ºF
15ºC / 59ºF
10ºC / 50ºF
5ºC / 41ºF
0ºC / 32ºF
46
VOLTAGE COMPENSATION
12V BATTERy
– 0.75V
– 0.60V
– 0.45V
– 0.30V
– 0.15V
0V (Reference)
+ 0.15V
+ 0.30V
+ 0.45V
+ 0.60V
+ 0.75V
Table 6.2. Temperature Compensation
As the LCD display is not
24V BATTERy
–1.50V
– 1.20V
– 0.90V
– 0.60V
– 0.30V
0V (Reference)
+ 0.30V
+ 0.60V
+ 0.90V
+ 1.20V
+ 1.50V