SamplexPower BBM-1225 Owner'S Manual Download | Manualshive

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Owner's

Manual

Please read this

manual before

operating your

VOJU

Battery
Back-up

Model:

BBM-1225

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Summary of Contents for BBM-1225

Page 1: ...Owner s Manual Please read this manual before operating your VOJU Battery Back up Model BBM 1225 ...

Page 2: ...Safety instructions 2 Description 2 Principle of operation 3 4 5 6 Installation 7 8 Specifications 9 Warranty information 10 INDEX ...

Page 3: ...ontain very corrosive diluted sulphuric acid as electrolyte Precautions should be taken to prevent contact with skin eyes or clothing Batteries generate hydrogen and oxygen during charging resulting in evolution of explosive gas mixture Care should be taken to ventilate the battery area and follow the battery manufacturer s recommendations Never smoke or allow a spark or flame near the batteries U...

Page 4: ...from feeding back into the power supply circuit D1 has a forward voltage drop of 0 4 at 1 A to 0 5 V at 10 A Hence the voltage available to the load and to the battery for float charging will be 0 4 to 0 5 V lower than the output voltage of the power supply In a battery backup application the battery will normally remain in a fully charged standby condition most of the time It will discharge to th...

Page 5: ... V minus drop of 0 4 V to 0 5 V across diode D1 i e 27 2 V to 27 1 V As long as the power supply is operating normally it will supply the load as well as charge the battery through resistors R1 and R2 each 1 2 Ohm 25W R1 and R2 are connected in parallel and will provide a net series resistance of 0 6 Ohm NOTE Please note that as the power supply is required to feed the load as well as charge the b...

Page 6: ... to approximately 4A Battery backup application using 24 V 100 AH battery When using this unit in the preset condition for 24 V 100 AH battery backup application the charging current will increase approx two times to 8 A which is equivalent to approximately C 10 0 1C Please check with the battery manufac turer if this maximum charging current of C 10 or 0 1C is acceptable for the 100 AH 24 V batte...

Page 7: ...he factory preset condition resistors R1 and R2 each 1 2 Ohm 25 W are connected in parallel The charging currents will be as follows For 12 V battery backup 14 V 0 4 V 11 4 V divided by 0 6 Ohm 3 66 A say 4A For 24 V battery backup 27 6 V 0 4 V 22 8 V divided by 0 5 Ohm 7 33 A say 8 A Adjustment to reduce the values of the maximum charging current to half The charging currents can be reduced to ha...

Page 8: ...ted device s and consequent risk of melted insulation and possibility of fire Hence for safety a very fast acting fuse of appropriate current capacity should be connected in series with the positive cable and should be placed as close as possible to the positive terminal of the battery Type ANN series fuses and Fuse Block No 4164 made by Bussmann or similar are recommended The following Table give...

Page 9: ...ration Switch off the power supply Connect the positive and negative output of the power supply to the input terminals of the unit marked INPUT POSITIVE and INPUT NEGATIVE respectively Connect the DC load to the terminals marked LOAD POSITIVE and LOAD NEGATIVE Connect the battery to the terminals marked BATTERY POSITIVE and BATTERY NEGATIVE CAUTION ENSURE CORRECT POLARITY OF ALL CONNECTIONS Page 8...

Page 10: ...r 12 V battery Up to 17 A for 24 V battery Charging current to battery Up to 4 A for 12 V battery Up to 8 A for 24 V battery NOTE The unit is pre set for charging current of up to 4 A for 12 V battery and up to 8 A for 24 V battery The charging current can be reduced to half the above values by disconnecting one of the two resistors R1 R2 Please see under Principle of Operation Adjustment to reduc...

Page 11: ...t to remedy the defect by anyone other than the Warrantor shall render this warranty void There shall be no warranty for defects or damages caused by faulty installation or hook up abuse or misuse of the equipment including exposure to excessive heat salt or fresh water spray or water immersion No other express warranty is hereby given and there are no warranties which extend beyond those describe...

Page 12: ...110 17 Fawcett Rd Coquitlam B C Canada V3K 6V2 T 604 525 3836 F 604 525 5221 e mail samlex samlexamerica com website www samlexamerica com IVersion BBM 1225 June 2005 ...

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