Instruction Manual

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MANUAL

CONGRATULATIONS

Congratulations on purchasing your new CTEK professional 24V DC/DC switch mode battery

charger, 12V converter and battery equalizer. This charger is part of a range of professional bat-

tery chargers from CTEK SWEDEN AB. It represents the latest technology in battery charging with

charging and analysis in 4 steps with temperature compensation.

Read this User Manual and follow the instructions carefully before using your new charger.

SAFETY

• The charger is designed for 24V lead-acid batteries mounted into vehicles.

Do not use the charger for any other purpose

• Use safety glasses when connecting or disconnecting a battery.

• Battery acid is corrosive. Rinse immediately with water if acid comes into contact with skin

or eyes. Seek medical advice.

• Make sure that the cables are not being pinched or in contact with warm surfaces

or sharp edges.

• While charging, a battery can emit explosive gases, avoid sparks in the immediate area.

• Always provide for proper ventilation during charging.

• Avoid covering the charger.

Starter Battery

24V+

Service Battery

24V+

Service ground

Service Battery Midpoint

D250TS

The D250TS has one 24V input and two alternating outputs. One output charge a 24V

battery and the other provides 50% of the input voltage to the midpoint of a 24V system. This

enables connection of 12V consumers to the battery string and also equalizing this battery

string, for longer battery life.

D250TS

FEATURES:

• Multi-step10A temperature compensated battery charging and battery maintenance.

• Battery separation of Starter and Service batteries.

• Equalization of Service batteries

• Makes connection of 12V consumers directly to 24V Service battery possible.

• When the charger is correctly connected the charger will output 24V on the status signal wire.

Connection of a 24V lamp (max 2W) to the status signal wire will indicate a correctly con-

nected charger.

• The charger will maintain the starter battery untill the supply is below 14V. To avoid draining the

service battery always connect a charger to the service battery when the vehicle is not used for

a longer period.

+IN +OUT

EQU

D250TS

Status signal wire

Temperature sensor

20015884C D250TS, Manual, Print file 002.indd 3 2011-12-20 13:27:12

Summary of content (6 pages)

PAGE 1
MANUAL Congratulations on purchasing your new CTEK professional 24 V DC/DC switch mode battery charger, 12 V converter and battery equalizer. This charger is part of a range of professional battery chargers from CTEK SWEDEN AB. It represents the latest technology in battery charging with charging and analysis in 4 steps with temperature compensation. D250TS The D250TS has one 24 V input and two alternating outputs.
PAGE 2
INSTALLATION of unit 168mm 90,6mm m 5m Figure 1 DRILL TEMPLATE Ø 1. Attach the temperature sensor holder on a flat surface on one Starter battery. Position it as close as possible to a positive post. 2. Use the included drill template. Wiring is simplified if the units are installed according to the drill template, but other setups are possible. 3. Install the unit(s) on a flat surface where it can be properly fixed and where the unit is not exposed to fuels, oils or splashes of dirt. 4.
PAGE 3
FUNCTIONALITY EN The D250TS has three operating modes: 1. 4-step charging of a Starter battery. 2. When Starter battery is fully charged: Equalization of a Service battery on the Input side. This function provides the possibility to connect 12 V consumers to the 1st battery in the Service battery string. 3. Monitoring. The D250TS now monitors if the Starter battery needs charging (priority) or the Service battery needs equalization.
PAGE 4
CHARGING PROGRAM D250TS The D250TS will charge the Starter battery in 4 steps. The last step, Pulse maintenance means that the D250TS monitors the Starter battery to see when a new charge pulse is needed. The D250TS use this monitoring time to equalize the Service battery by sending out a voltage of exactly 50 % of the input voltage. This prolongs the Service battery significantly and will also make it possible to connect 12 V consumers to the first battery in the Service battery string.
PAGE 5
TeCHNICAL SPECIFICATIONS Recommended minimum wire dimensions in mm² Min WIRE Dimensions WIRE 0.5 m 1m 2m 5m 10 m +IN 2.5 mm2 2.5 mm2 4 mm2 4 mm2 4 mm2 +OUT 2.5 mm2 2.5 mm2 4 mm2 6 mm2 6 mm2 +A 2.5 mm2 2.5 mm2 4 mm2 6 mm2 6 mm2 +SIGNAL 1.5 mm2 1.5 mm2 1.5 mm2 1.5 mm2 1.5 mm2 –GROUND 1.5 mm2 1.5 mm2 1.5 mm2 1.5 mm2 1.5 mm2 Charger model CTEK D250TS Model number 1048 Input voltage 14–30 V Charging voltage 28.8 V at 25°C, temperature compensated.
PAGE 6
TEMPERATURE PROTECTION D250TS has a temperature sensor that is used for adjusting the charge voltage according to Starter Battery temperature. This sensor should be attached to the Starter Battery, if possible, otherwise in it close surrounding. LIMITED WARRANTY CTEK SWEDEN AB, issues this limited warranty to the original purchaser of this product. This limited warranty is not transferable. The warranty applies to manufacturing faults and material defects for 2 years from the date of purchase.