Velleman Toolland AC30 User Manual page 6

6. Operation
1. When all preparations are done (see §5), switch on the charger [6].
2. Set the MIN/BOOST switch [5] to BOOST for fast charging (high current, 20 A). MIN for
slow charging. When MIN is selected the output current can be set to low (1, charging
current = 12 A) or normal (2, charging current = 16 A) using the 1/2 switch [4].
3. The current meter [1] indicates the charging current. The more the battery is charged, the
less current it will draw. When the current reaches 0 (zero) the charging process must be
stopped to prevent the increasing battery voltage level from destroying the battery.
Note: another way to determine the charge level of the battery is by measuring the density
of the acid using a density meter (see table below).
density = 1.285 g/ml
density = 1.21 g/ml
density = 1.16 g/ml
4. When the battery is fully charged, immediately switch off the charger [6]. Overcharging will
destroy the battery.
5. Disconnect the battery from the charger, starting with the clamp on the negative pole
(black) and then proceed with the clamp on the positive pole (red).
7. Fuses
The AC30 has 3 safety fuses installed.
1. Thermal fuse: this fuse cuts of the output power when the temperature of the charger is
too high. Power automatically restores when the temperature drops below an acceptable
level.
2. Input fuse [3]: protects the charger from power anomalies on the mains input power. To
replace, disconnect the charger from the mains and disconnect the connected battery.
Unscrew the holder [3] (counter clockwise) and replace the broken fuse by a fuse with the
same specifications (F5 A/250 V). Tightly screw the holder back in place.
3. Output fuse [2]: protects the connected battery from over-current. To replace, disconnect
the charger from the mains and disconnect the connected battery. Simply unplug the fuse
from the socket and install a new one. Only use a fuse with the same specifications (30 A).
8. Care and Maintenance
• Always remove the plug from the mains socket and disconnect batteries when servicing or
cleaning the charger.
• Never use water or any other liquids to clean the charger.
• Keep the cables clean, but avoid using cleaners based on benzene, trichloroethylene,
chloride, ammonia... as they affect or even dissolve plastic parts.
• Check liquid level of batteries once per month and fill up when necessary.
• Dispose of batteries in accordance with local regulations.
V. 05 – 01/04/2020
AC30
battery fully charged
battery half charged
battery depleted
6 ©Velleman nv