CTEK ZAFIR 90 User Manual And Manual page 2

BATTERY TYPES AND SETTINGS
The following recommendations should only be seen as guidelines. Please
consult the battery manufacturer for further instructions.
Mode 14.4 V / 0.5 A
This mode is normally used for <14 Ah batteries.
Mode 14.4 V / 3.3 A Normal setting for wet batteries,
MF and for most GEL batteries.
Mode 14.7 V / 3.3 A This setting is recommended for many
AGM batteries such as Optima and Odysseys. This mode is
also useful for charging batteries in minus degrees.
CHARGING CYCLE
ZAFIR 90 operates in a three step fully automatic cycle IU o U p . It begins
charging with an almost constant current (0.5 A or 3.3 A) until maximum volt-
age (14.4 V or 14.7 V) is reached. The charger changes mode at this point. It
locks the voltage at maximum level and allows the current to drop. The
ZAFIR 90 switches automatically to pulse maintenance charging when the
current drops to 0.4 A. The charging cycle restarts if the battery voltage
drops to 12.9 V. ZAFIR 90 measures both voltage and current to determine
if the charge is complete or if a new charge cycle should start. Used method
depends on if it is before or during charge, see table:
When? Check Yes
Before start Voltage Green LED until
or after above 12,9V? voltage
Mode change. < 12.9V.
During charge. Current Orange LED,
< 0.5 A? charging.
Bulk - Charging where 80% of the energy is returned. The charger delivers an
almost constant current until the battery voltage reaches maximum level.
Absorption - Charging up to almost 100%. The charge current falls and the
voltage is kept constant at the maximum level.
Pulse - Maintenance phase, where the charger delivers a pulse if the battery
voltage drops. Charging varies between 95% and 100%. The battery receives
a pulse when the voltage reduces. Keep the battery in good condition when
not in use. The charger can be connected for months.
Battery size
(Ah)
2
No
10
Orange LED,
14
charging.
20
Green LED until 50
voltage
75
< 12.9V.
90
TEMPERATURE PROTECTION
The charger is internally protected from becoming overheated. The power
reduces when the ambient temperature increases.
The ZAFIR 90 does not need any specifi c maintenance. Please note that
dismantling the charger will cancel the warranty.
A defective power cord has to be replaced. Keep your charger clean. Wipe it
with a soft tissue and mild cleaning liquid. The charger must be disconnected
for cleaning.
Voltage
Current
Time
BULK CHARGING TIME
Mode Time
(h)
2.2
11
3.5
5
12.5
19
22.5
MAINTENANCE
SPECIFICATION
Voltage AC 220-240 VAC, 50-60 Hz. Output power is
reduced at lower input voltage. A perfect
charge will still be achieved.
Current 0.6 A rms
Starting Current < 25 A
Back Current Drain* 1.3 mA
Charging Voltage Nominal: 12 V 14.4 V or 14.7 V
Ripple** Max 50 mV rms, max 0.13 A
Charging Current 3.3 A max
Ambient Temperature -20°C - +50°C. Automatic reduction of power
at increased ambient temperature.
Cooling Natural convection.
Charger type Three step fully automatic IU o U p , with pulse
maintenance mode
Type of batteries All types of lead-acid batteries
(Wet, MF, VRLA, AGM and GEL).
Battery Capacity 1.0 - 90 Ah
Dimensions 165 x 61 x 38 mm (L x W x H)
Insulation IP 65
Weight 0.5 kg
*) Back Current Drain is what drains the battery if the charger is connected
without the power cord connected. ZAFIR 90 extremely low Back Current
Drain is equal to 1 Ah/month. A normal fi gure for other charger is 1 Ah/day,
which could ruin your battery.
**) Quality of the current and voltage is very important. A linear charger
produces a current with a high ripple. High current ripple heats up the battery
and makes the positive electrode age prematurely. High voltage ripple could
harm other equipment connected to the battery. ZAFIR 90 produces a high
quality current with very low ripple. There is no need to disconnect the battery
from the vehicle.
INDICATIONS
Polarity reversal.
Charging.
Pulse maintenance.
Power on, no charging selection done.