The charging characteristic is initially a constant current which automatically tapers off to a very low level of trickle current as the battery voltage rises towards the charger float voltage output. The float voltage and maximum current output levels are easily preset by controls on the unit.
A boost condition can be introduced which causes the full constant current to flow (irrespective of battery voltage). A boost timer is incorporated which resets the charger to normal automatic float charging irrespective of the position of the boost switch, after four hours.
Battery undervoltage and overvoltage are monitored and individual relays are energized and LED lamps are illuminated when the battery voltage exceeds the preset limit. Isolated change over relay contacts are provided for both alarms. A low voltage delay timer can be set to 150 seconds to prevent nuisance low voltage alarms during engine cranking. The Power Fail relay is energised with power applied.
NOTE: Charger output must be turned off when batteries are disconnected.
mains 240V 50Hz (other voltages and frequency available)
12 or 24VDC (specify on order)
30A maximum continuous
Operational temperature range:
0 - 60 C ambient
10A resistive, High volts, Low Volts, Power Fail
Control potentiometer 1:
Set float voltage (factory preset)
Control potentiometer 2:
Set maximum current (factory preset)
Control potentiometer 3:
Set low output voltage - battery charger fail (factory preset)
Control potentiometer 4:
Set high output voltage (factory preset)
Gammatron | Power & Instrumentation Equipment
Gammatron manufactures and supplies commercial and industrial grade power & instrumentation products worldwide.