Fig. 31 Battery charger
1
Voltmeter
2
Ammeter
3
Overload protection switch (main switch)
4
Safety cut-out
1. Switch on the «overload protection switch».
2. Switch on the «safety cut-out».
Result The meters indicate the charging voltage and current.
Checking battery charger function
The charger function should be checked weekly.
Instruments
Voltmeter
Charging voltage [V]
Ammeter
Charging current [A]
Standard value
26.6
0.5
Tab. 53 Standard battery charger readings
1.
Cutting the supply voltage of the battery charger.
Starter batteries discharge through a connected battery charger. This can result in a total dis‐
charge and destruction of the batteries.
➤ When switching off the power supply, you also must switch off the motor protection switch
and the circuit breaker.
2. Check the readings on the voltmeter and ammeter.
Result If deviations are found: Contact an authorised electrician.
7
Initial Start-up
7.5
Trickle-charging the battery
72
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
No.: 901765 05 USE
