US Switch Mode BATTERY CHARGER For lead-acid batteries 14-150 Ah MULTI US 7000 User’s Manual and a guide to professional battery charging For Starter/Deep Cycle batteries
INTRODUCTION The MULTI US 7000 is a primary switch mode battery charger with pulse maintenance. The MULTI US 7000 is designed to offer maximum life for the battery. MULTI US 7000 is a member of a family of professional chargers from CTEK SWEDEN AB. It represents the state-of-the-art of today’s technology for battery charging. Please read these operating instructions carefully before operating the MULTI US 7000. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
11. WARNING - RISK OF EXPLOSIVE GASES a) BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR THIS REASON, IT IS OF THE UTMOST IMPORTANCE THAT EACH TIME BEFORE USING YOUR CHARGER, YOU READ THIS MANUAL AND FOLLOW THE INSTRUCTIONS CAREFULLY. b) Follow these instructions and those published by the battery manufacturer and the manufacturer of any equipment you intend to use in vicinity of battery. 12.
13. PREPARING TO CHARGE a) b) c) d) e) f) If necessary to remove battery from vehicle to charge, always remove grounded terminal from battery first. Make sure all accessories in the vehicle are off, so as not to cause an arc. Be sure area around battery is well ventilated while battery is being charged. Gas can be forcefully blown away by fanning the area with a piece of cardboard or other non-metallic material. Clean battery terminals. Be careful to keep corrosion from coming in contact with eyes.
b) c) d) e) f) g) h) Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons. Check polarity of battery terminals. POSITIVE (POS, P, +) battery post usually has larger diameter than NEGATIVE (NEG, N, -) post. Determine which post of battery is grounded (connected) to the chassis. If negative post is grounded to the chassis (as in most vehicles) see (e). If positive post is grounded to the chassis, see (f). Negative-grounded vehicle. Charger connection. 1.
e) f) Do not face the battery when making the final connection. When disconnecting charger, disconnect in reverse sequence from connecting procedure. See operating instructions for charge information. The battery charger must be connected to the battery according to the instructions above. IMPORTANT SAFETY INFORMATION! The MULTI US 7000 cannot be used to restore a fully worn out battery.
4. Charging a battery grounded to the positive terminal: Positive grounded vehicle Charger connection. 1. Connect negative charger clip (black) to negative battery terminal. 2. Connect positive charger clip (red) to a good metal engine ground away from the battery. Do not connect clip to fuel lines or sheet-metal body parts. 3. Connect the AC cord to the socket. The red alarm indication light will indicate a battery which is connected to reverse polarity.
6. If the indicator for charge and maintenance charge are flashing alternately, this may have the following causes: • Interruption of the charging process because a cable has become loose or because the battery is not conducting. • The battery is sulphated. If the indicator flashes for more than 30 minutes the battery may be defective and should be replaced. • If the flashing signal is flashing at intervals of more than 10 seconds, then there is a high self discharge of the battery, indicating a bad battery.
CHARGING The battery charger must be connected to the battery according to the instructions above. Start charging 1. Connect the power cord to the power outlet. The charger indicates STANDBY, or latest selected mode, yellow indication light (A). 2. Set the proper charging mode for the battery by pushing the Mode Selector Button (see Battery Types and Settings). 3. The lamp for Deep Discharged battery (1) will indicate if the battery has been discharged down to below 10.5 V.
CHARGING CYCLE Voltage/Current Voltage Start Is Bulk Io Absorption Uo Pulse Up Supply Uo Recond I Current Time Setting: 14.4 V or 14.7 V MULTI US 7000 performs a 5-step fully automatic charge cycle, IIUoIUp. Lamp B for 14.4 V or Lamp C for 14.7 V. Start: Starting phase for charging. The current is restricted to 3 A. It ends when the voltage is above 10.5 V. There is a time-out after 6 hours and the charger switches to Error indication, (lamp 0).
If the battery is charged and/or the battery's terminal voltage drops below 12.9 V the charger starts a charge pulse of 5A until the terminal voltage has reached the set level, 14.4 V or 14.7 V. The charge pulse is then interrupted and the cycle is repeated as long as the charger is in pulse maintenance phase. Pulse maintenance phase is indicated by lamp 4. If the terminal voltage drops below 12.1 V, the charger automatically reverts to the beginning of the charging curve. Setting : Supply 13.
INDICATORS 3 2 1 0 4 5 SUPPLY 6 RECOND MODE A B NORMAL C D E SUPPLY RECOND Indication Description 0 Error mode, the charger interrupts the charging/voltage supply. See description below. 1 Start mode, restricted charging current and battery voltage under 10.5 V. 2 Bulk charging, Maximum charging current. 3 Absorption charging, Voltage restrictions to selected voltage. 4 Charging completed. Pulse maintenance charging. 5 Supply mode, fixed output voltage, no counter voltage requirements.
BULK CHARGING TIME Battery size (Ah) 14 50 90 150 Voltage AC Current Back Current Drain* Charging Voltage Ripple** Charging Current Ambient Temperature Cooling Charge cycle Type of batteries Battery Capacity Dimensions Insulation Weight Time to ~80% charge (h) 2 6-7 11-13 20-22 TECHNICAL DATA 85-125 VAC, 50-60 Hz. Output power is reduced at lower input voltage. 2.0 A rms < 3 mA Nominal: 12 V, 13.6 V, 14.4 V, 14.7 V or 16 V Max 150 mV rms, max 0.3 A 7 A max - 20°C till + 50°C.
OVERHEATING PROTECTION The MULTI US 7000 is equipped with overheating protection. In high ambient temperatures the output power is reduced. Do not cover the charger. BATTERY CABLES Multi US 7000 is equipped with a set of battery cables with battery terminal clips and one set of battery cables with eyelet terminals. MAINTENANCE The MULTI US 7000 is maintenance-free. The charger must not be opened; doing so will invalidate the warranty.
