GYS MULTICHARGE CT 48 Manual De Instrucciones página 11

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Translation of the original instructions
Avoid connecting batteries in series and parallel at the same time.
For batteries connected in series, monitor them during the charge in order to ensure that charging levels
are identical. If a battery has a different voltage level, charge it separately to prevent it from damaging the
others.
For this reason, when charging batteries in series using the Multicharge CT 48 (e.g. charging stationary bat-
teries, traction batteries, 24V heavy-goods vehicle batteries made of 2 x 12V batteries etc.), it is essential to
replace all batteries at the same time when they need replacing.
The no-load voltage of the charger can be important depending on the charging position.
Be careful not to touch the live extremity of the clamps when the machine is in use.
People wearing pacemakers should be careful.
Remove the battery caps (if applicable) and make sure that the liquid or gel level (electrolyte) is sufficient.
Otherwise add de-ionised water and clean the battery terminals and pods.
How to charge a battery
1. Put switch on «OFF» position.
2. Connect the clamps to the battery terminals and ensure good contact. Follow these steps :
- Connect red clamp to «+» battery terminal.
- Connect black clamp to vehicle frame as far as possible from the fuel system in order to avoid any risk of explo-
sion. Or connect it to the «-» battery terminal.
3. Connect the mains lead to a 230 V - 50/60 Hz mains supply.
4. Select the correct output voltage based on the size of the battery being charged.
5. Select charging speed and between
Output voltage
selection
1
12V
20 A
24V
20 A
36V
19 A
48V
15 A
*
When used in «boost» mode, the thermal protections might kick in and stop the charge. The «boost» position is therefore suited for a fast but
incomplete charge of the battery (for instance in order to start a vehicle).
User tips when charging a highly discharged battery (no-load voltage <10.5 V for a 12V battery)
1. Choose a fast charge position (5 or 6)
2. Regularly monitor and decrease the position when the current value gets near 0 A.
3. Repeat the operation until reaching position 1 for the final charge.
Control and end of charge
- Ammeter and voltmeter show the CT 48 current and voltage output. These are therefore charger indicators. The
charge can be interrupted when power get close to 0.
- Do not leave the machine connected to the battery over 24 hours.
- Once the charge is complete, in that order : change the position of the switch to «OFF», then disconnect the char-
ger from the mains and finally disconnect the clamps from the (-) and then (+) terminals of the battery.
PROTECTIONS
MULTICHARGE CT 48 is a 48V charger which has several protections :
Charging clamps are insulated.
Protection against polarity reversal is ensured by the front fuse. It will need replacing when blown. Follow the fuse
rating printed on the machine.
The machine is protected by 2 fuses to avoid any risk in case of failure.
Primary fuse
Secondary fuse
MULTICHARGE CT 48
normal or
boost
Charge speed selection
2
3
24 A
25 A
22 A
24 A
22 A
24 A
17 A
18 A
12 V - 24 V - 36 V - 48 V
Cylindrical type 6.35x31.75
Slow blow T8A
Littelfuse reference: 313008 MXP
BF1 type 40A
Littelfuse reference: 142.5631.5402
modes according to the table below:
*
4
28 A
26 A
26 A
20 A
EN
5
6
29 A
32 A
29 A
32 A
28 A
30 A
22 A
24 A
11

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