
COOLING AND FAN CONTROL / THERMAL SHUT DOWN (SEC-1225G/1235 AND 2412G)
SEC-1212G is cooled by convection.
PLACE THE UNIT IN A WELL VENTILATED OPEN AND COOL AREA
.
DO NOT BLOCK THE VENTILATION OPENINGS ON THE SIDE
S
SEC-1225G/1235 and 2412G are cooled by convection and forced air. A temperature controlled
fan has been provided to improve cooling at higher loads. The fan is controlled by a sensor
mounted on the power transformer. THE FAN WILL BE OFF AT LOWER LOADS.
It will come on only when the temperature of the power transformer is above 70¼C due to
mounted on the power transformer will activate over temperature shut down at 100¼C.
The output voltage will be automatically resumed once the unit cools down.
PLACE THE UNIT IN A WELL VENTILATED OPEN AND COOL AREA.
DO NOT BLOCK THE OPENINGS AT THE FAN SUCTION ON THE BOTTOM
AND THE DISCHARGE OPENINGS ON THE SIDES .
BATTERY CHARGING AND BATTERY BACK-UP
WARNING ! THESE UNITS ARE POWER SUPPLIES AND NOT BATTERY CHARGERS.
DO NOT CONNECT THESE UNITS DIRECTLY TO A BATTERY
These units should NOT BE DIRECTLY CONNECTED TO A BATTERY for charging or
for battery back-up. Battery charging and battery back-up may be undertaken only when the
battery is connected through suitable external isolating diodes and charge limiting resistor.
The isolating diode will ensure that the battery does not back power the power supply. When
a battery is deeply discharged, it will initially draw a very large charging current and thus,
will force the power supply into current limit mode for prolonged periods. This is harmful for
the power supply. The charge limiting resistor will limit the charging current, thereby,
ensuring that the maximum charging current is well below the current limit value of the
power supply.
WE OFFER OPTIONAL BATTERY BACK-UP AND CHARGING MODULE .
3
!
Содержание SEC-1212G
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