Cofko LLC. BC-9000 User manual

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BC
BCBC
BC-
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-9
99
9000
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000
BATTERY CHARGER
OPERATIONS MANUAL
COFKO LLC.
COPYRIGHT © 2011

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UNPACKING
As you unpack your new BC-9000 battery charger, inspect the tester for signs of shipping damage. f shipping damage is
present, stop and contact the shipping company for damage claims information. The box should contain the BC-9000 ,
operators instruction manual, DC charge cord , and battery connector assembly.
IMPORTANT: Save the shipping box and packaging material. They should be used to repack the tester if it needs to be
shipped back for warranty or service.
INTRODUCTION
Congratulations on acquiring your new BC-9000 battery charger. The BC-9000 has been designed to provide the operator
with accurate battery charging and ease of operation.
The features of the BC-9000 are:
BC-9000 Cha ge :
- Adjustable output voltage from 3.0 to 36.0 V dc in 0.1 volt steps.
- Adjustable output amperes from 0.05 to 25 Adc.
- Constant voltage or constant current charge.
- Adjustable charge time from 1 to 999 minutes.
- Single or two step charge routine.
- Universal AC power input 90~264Vac (47 to 63Hz)
- LCD display.
- 10mv voltage resolution.
- Over temperature protection.
- Audio warning when charge is complete.
- 1 year warranty.

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Before operating your new BC-9000 , familiarize yourself with this operators manual and the unit.
Questions?
Call: [phone] Mon.-Fri.8:00 A.M. to 5:00 P.M. PST or suppo [email protected]m
Thank you,
COFKO
Manual: BC-9000
Revision: A Date: 12/20/2011

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CONTENTS PAGE
BC-8000 History of Revisions
……………………………….............................................................................................................. 5
BC-9000 SAFETY NOTES
………………………………………………………………….……..................................................................… 6,7
BC-9000 OPERAT ON
…………………………………………........................................................................................…..……. 8,9,10
BC-9000 CARE
…………………………………………..............…………………..................................................…..…....….. 11
BC-9000 TECHN CAL DATA
………………………………………………………………………..........................................................…....….. 12
BC-9000 L M TED WARRANTY
……………………………….............................................................................................................. 13
BC-9000 NOTES
……………………………….............................................................................................................. 14
BC-9000 CERT FCAT ON OF FACTORY CAL BRAT ON
............................................................................................................................................... 15

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Histo y of Revisions
Revision # Effective Date Description of Change Approval By
A 12/20/2011 Initial issue M.C.
B 10/23/2012 Increase Maximum Operation Altitude from 6000’ to 6500’ M.C
B 10/23/2012 Change Description of Box Contents M.C.
C 04/05/2013 Minimum and Maximum Charger Operation Temperature M.C.

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SAFETY NOTES
Your new BC-9000 battery charger has been designed with operator safety as a function of its design, construction, and
operation. Understanding how to safely operate the BC-9000 is important. Failure to follow the operation and safety
guidelines when using the BC-9000 can result in pe sonal inju y to the ope ato and damage to the BC-9000. Always
review the battery manufacturer’s battery charging guidelines before recharging batteries.
Look for this symbol to identify Safety and Danger precautions. Be Alert- Your safety is
involved! ersonal injury or equipment damage can occur if guidelines are not followed.
RECAUTIONS:
recautions:
1 CAUTION: Aircraft batteries are certified to have a certain minimum capacity for emergency operations in
the event of an electrical generator system failure. Never “jump start” an aircraft that has a discharged or
“dead” battery.
2 WARNING: ELECTRIC SHOCK HAZARD. Do not touch un-insulated portions of the connector or the battery
terminals. A possibility of serious electrical shock exists. Do not lay tools or other metal objects on the
battery as arcing or explosion could occur. Remove conductive jewelry before working around battery,
charger, or test equipment.
3 CAUTION: ELECTRIC BURN HAZARD. Do not wear conductive rings, belt buckles, or other jewelry when
working with batteries, chargers, or test equipment. Do not lay tools or other metal objects on the battery
as arcing and severe burns could occur.
4 WARNING: Batteries on charge or discharge produce hydrogen gas, which can explode if ignited. Do not
smoke, use an open flame, or cause sparking near a battery. Charge, service or test a battery only in a well
ventilated area. The use of exhaust fans may reduce the risk of explosion.
5 WARNING: Batteries contain sulfuric acid which will cause burns. DO NOT TOUCH EYES AFTER TOUCHING
BATTERY. Do not get acid in your eyes, or on your skin, or clothing. n the event of acid in the eyes, flush
thoroughly with clean cool water for several minutes. Get professional medical attention. Refer to battery
MSDS for additional information.

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6 WARNING: Wear proper eye, face and hand protection at all times when working with batteries. Know the
location and use of emergency eyewash and shower nearest the battery charging area.
7 CAUTION: To prevent damage to the connector, arc burns, or explosion, batteries should never be
connected or disconnected while being charged or discharged. Batteries must be connected or disconnected
only when the circuit is open. nsure the aircraft battery switch, external power source, or the charger is in
the “OFF” position before connecting or disconnecting the battery. Battery terminal protectors should be
installed whenever the battery is not connected in the aircraft or to the test equipment.
8 CAUTION: Batteries contain hazardous materials. Know the location and proper use of emergency response
materials. Refer to battery Material Safety Data Sheet (MSDS) for additional information.
9 Caution / Warning: Only constant potential charging may be done on the aircraft. DO NOT constant current
charge a battery on the aircraft. There could be a serious risk of injury to personnel and or damage to the
aircraft or aircraft systems due to high voltage and generation of explosive gases when charging constant
current.
10 DANGER: Never disconnect the AC power cord with recharge current applied to the battery. f you wish to
terminate a recharge cycle, press the NEXT button first to stop the battery recharge cycle. Now place the
POWER switch to the off position. The AC power cord can now be safely removed from the power source.
11 DANGER: Never recharge batteries without first inspecting all battery wires and connections for condition
and tightness. Replace all defective wires and bad connections before charging batteries. Defective wiring
and bad connections can cause overheating during charging .
12 DANGER: Never connect the BC-9000 to batteries with voltage or recharge charge currents outside the
ratings of the charger. Any questions that arise about the battery or charger ratings, call [phone].
13 DANGER: Never obstruct the BC-9000 air intake or hot air exhaust openings. Obstructing either opening can
cause the BC-9000 to overheat.

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BC-9000 OPERATION
NOTE: Before recharging a battery, eview all echa ging p ocedu es as equi ed by the batte y
manufactu e . Failure to do so can result in permanent damage to the battery or the BC-9000.
DANGER: Never attempt to connect the BC-9000 charger to a battery using anything but the proper
connector. Doing so can damage the BC-9000, batte y, o cause inju y to the ope ato .
DANGER: Neve attempt to echa ge Lithium type batte ies with the BC-9000.
BATTERY CHARGING
DANGER: The BC-9000 battery charger is a fully adjustable battery charger. The BC-9000 will follow
the operator settings during the battery recharge cycle. Always consult the battery manufacturer’s recharge
guidelines before starting a recharge cycle. If the batte y is subjected to imp ope echa ge settings, se ious
damage o inju y can occu to the ope ato and the BC-9000. Critical settings, such as maximum recharge voltage,
recharge amperes, and recharge time must follow the battery manufacturer’s guidelines. Always remove the battery
from the aircraft before starting a recharge cycle. SAFETY F RST
1. Set the BC-9000 on a stable suitable surface. Plug the AC cord located at the rear of the BC-9000 into an AC
power outlet. ( Note: The BC-9000 comes with a NE A 5 -15 connector ) Using the UP or DOWN button, select
charge steps. The BC-9000 will charge the battery using a single step or two step charge mode. Single step
charging is typically used to charge lead-acid batteries using constant potential charging. Two step charging is
used in constant current charging of nickel cadmium batteries. Press the NEXT button to advance the display
menu.
a. f single step was selected above, enter the battery recharge time using the UP or Down buttons to

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increase or decrease charge time. Charge time is in minutes with 60 minutes equaling 1 hour charge time. Tip:
Holding down the UP or DOWN buttons will rapid advance the number selection. Press the NEXT button to
advance the display menu.
b. The BC-9000 display will now ask for a CHARGE VOLTS? selection. Single step charging requires only one charge
volts selection. Recharge voltage can be adjusted from 3.0 to 36.0 volts. Use the UP or DOWN button to set
the charge voltage. This voltage is the maximum voltage the BC-9000 will output to the battery. Consult with
the battery manufacturer’s for proper recharge voltage settings. Note: The charge voltage selection must
always be greater than the batteries rated voltage. Press the NEXT button to advance the display menu.
c. The BC-9000 will now ask for CHARGE AMPS? selection. The BC-9000 recharge current can be adjusted from
0.05 to 25 amperes. Consult the battery manufacturer’s recharge guidelines for proper settings. Never set the
recharge amperes to a value outside the battery recharge specifications. Press the NEXT button to advance the
display menu.
d. The BC-9000 will display the message START CHARG NG? Press NEXT. Pressing the next button will start the
battery charging cycle. With the charger running, the BC-9000 display will show all the entered settings under
the CHARG NG heading on the left side of the display. The arrow displayed will point to the setting that is active
at that moment of the charge cycle. On the right side of the display all the charging readings are
displayed under the ACTUAL heading. Upon completion of the charge cycle the audio buzzer will beep, signaling
the charge is done. Note: The charge cycle can be stopped at any time by pressing the NEXT button.
2. f two step charge was entered above the BC-9000 will display CHARGE Step 1 Time?
a. Enter the first step charge time using the UP or DOWN button. The time can be adjusted from 1 minute to 999
minutes. Press the NEXT button to advance the display menu.
b. The BC-9000 will display CHARGE Step 1 Volts? Use the UP or DOWN button to adjust the value from 3.0 to
36.0 volts. Press the NEXT button to advance the display menu.
c. Now enter the first step charge current setting using the UP or DOWN button. The charge current can
adjusted from 0.05 to 25 amperes. Press the NEXT button to advance the display menu.
d. The BC-9000 will display CHARGE Step 2 Time? Use the UP or DOWN button to adjust the charge time value
from 1 minute to 999 minutes. Press the NEXT button to advance the display menu.
e. The BC-9000 will display CHARGE Step 2 Voltage? Using the UP or Down button the step 2 voltage can be
adjusted from 12.5 to 36.0 volts. Press the NEXT button to advance the display menu.
f. Now enter the second step charge current setting using the UP or DOWN button. The charge current can
adjusted from 0.05 to 25 amperes. Press the NEXT button to advance the display menu.

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g. The BC-9000 will display the message START CHARG NG? Press NEXT. Pressing the next button will start the
battery charging cycle. With the charger running the BC-9000 display will show all the entered settings under
the flashing CHARG NG/Step 1 heading on the left side of the display. The arrow on the far left points to the
limiting item at the moment. T ME, VOLTS, or AMPS. f a charge time limit was met the arrow will point to
T ME. f the unit is limiting the current to the user’s current limit setting, the arrow will point to AMPS (this is
constant current mode). f the unit is limiting the voltage to the user’s voltage limit setting, the arrow will point
to VOLTS (this is constant potential mode). The arrows will point to only 1 items at a time. f a charge time limit
has not been reached the arrow will point to VOLTS or AMPS to indicate constant voltage or constant current
charge mode respectively. The operating modes constant potential or constant current are automatically
invoked by your VOLTS and AMPS limit settings. The arrow displayed will point to the setting that is active
at that moment of the charge cycle. On the right side of the display all the current charging readings are
displayed under the ACTUAL heading. Upon completion of the charge cycle the BC-9000 will turn off the charge
and turn on the audio beeper to signal the charge cycle is done. Note: The charge cycle can be stopped at any
time by pressing the NEXT button.
REMEMBER SAFETY FIRST!

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BC-9000 CARE
Your BC-9000 battery charger should be treated as precision equipment, misuse will shorten its ability to perform
accurate battery charging. Some simple guidelines of care will insure trouble free operation.
1. Do not drop the BC-9000 or expose it to rough handling.
2. Do not expose the BC-9000 to water or fluids of any kind.
3. Do not operate the BC-9000 in a closed up area.
4. Do not connect the BC-9000 to batteries of improper voltage ratings.
5. Do not operate the BC-9000 with the air intake or exhaust outlet blocked or restricted.
6. Do not carry the BC-9000 by the main power cable.
7. Do not operate the BC-9000 near flammable materials.
8. Do not expose the BC-9000 to direct sunlight during operation.
9. Do not expose the BC- 9000 to any other heat sources.
10. Always contact the technical support for questions on BC-9000 safety and operation.
E-mail suppo[email protected]
REMEMBER SAFETY FIRST!

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BC-9000 TECHNICAL DATA
AC nput Voltage………………………………............................................. 90~264VAC 1PH
AC nput Current………………………………............................................. 15 Amps @ 115VAC / 7.5 Amps @ 230VAC
AC nput Frequency………………………………......................................... 47-63 Hz
DC Output Voltage Maximum……………………………….......................... 36VDC
DC Output Voltage Minimum………………………………........................... 3.0VDC
DC Output Current Maximum………………………………........................... 25ADC
DC Output Current Minimum………………………………............................ 0.050ADC
Case Length……………………………………………….………………................…... 12 in(30.5cm)
Case Width…………..……………………………………………………….......….......… 9 in(22.9cm)
Case Height ……………..…………………………………………………..................… 16 in(40.6cm)
Weight……….……………………………………………………...........……................ 14 lbs(8.1kg)
Operation Temperature Range………………………………........................... -20 to 50 Deg. C
Maximum Operating Altitude1………………………………....…..…………......... 6500ft(1981.2m)
1. Consult factory for operation above maximum altitude rating.

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BC-9000 LIMITED WARRANTY
STATEMENT OF WARRANTY
COFKO LLC warrants to the original purchaser (end user) of the BC-9000 that it will be free of defects in workmanship
and materials. This warranty is void if COFKO LLC finds that the BC-9000 has been subjected to improper care, abnormal
operation, or modification.
WARRANTY PERIOD:
The warranty period covers the original purchaser (end user) from the date of shipping.
1 Year: Covers each BC-9000 for workmanship, material, and labor.
TO OBTAIN WARRANTY COVERAGE:
You are required to notify COFKO LLC, of any defects within the warranty period. Written notification is recommended.
WARRANTY REPAIRS:
f upon inspection COFKO LLC confirms the existence of a defect covered by this warranty, the defect will be corrected by
repair or replacement at COFKO LLC option.
WARRANTY COST:
The purchaser must bear the cost of shipping the BC-9000 to COFKO LLC as well as the return shipping cost.
IMPORTANT WARRANTY LIMITATIONS:
1. COFKO LLC will not accept responsibility for repairs made without authorization.
2. COFKO LLC shall not be liable for consequential damages (such as lost business, etc.) caused by a defect or
reasonable delay in correcting a defect to the BC-9000.
3. COFKO LLC liability under this warranty shall not exceed the cost of correcting the defective BC-9000.
This written warranty is the only expressed warranty covering the BC-9000. All warranties implied by law such
as Warranty of Merchantability are limited to the duration of this limited warranty of the BC-9000. Check your
local legal rights for further rights you may have.

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BC-9000 NOTES
1. ___________________________________________________________________________
2. ___________________________________________________________________________
3. ___________________________________________________________________________
4. ___________________________________________________________________________
5. ___________________________________________________________________________
6. ___________________________________________________________________________
7. ___________________________________________________________________________
8. ___________________________________________________________________________
9. ___________________________________________________________________________
10. ___________________________________________________________________________

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COFKO LLC.
5517 RIVERVIEW DR.
RIVERSIDE, CA. 92509
[phone]
[e-mail]
CERTIFICATION OF FACTORY CALIBRATION
EQUIPMENT: BATTERY CHARGER
MODEL#: BC-9000
Application : Battery charger for Lead-Acid/ Nickel Cadmium batteries.
Specification:
Universal AC Powered: 90~264vac (47 to 63Hz)
Charger Output Voltage: 3.0 to 36VDC (+/- 0.05Vdc)
Charger Output Current: 0.05 to 2.50ADC (+/- 0.005Adc)
Charger Output Current: 2.6 to 25ADC (+/- 0.05Adc)
Maximum Charge Time: 999 minutes
Single or Two Step Charging
Notes: Calibrated with NIST traceable equipment.
Test Equipment Manufacturer: Model: Serial# Control#
Volt Meter #1 HP 3456A 2015A01818 12617
Volt Meter #2 HP 3455A 1622A11888 12618
Frequency Counter HP 5316A 2632A10545 12693
Shunt Deltec WB 100 100 NA. 137317MLQA5
Product: Battery Charger
Model: BC-9000
Calibration Due: Once A Year
Shipped Condition: Calibrated within Specified Tolerance _____- Passed
Procedure: CF2_FINALCAL
COFKO LLC. CERTIFIES THAT THE ABOVE LISTED TEST EQUIPMENT MEETS OR EXCEEDS ALL SPECIFIED TOLERANCES. THE TESTER
STATED ABOVE HAS BEEN CALIBRATED WITH NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY(NIST) TRACEABLE EQUIPMENT
LISTED ABOVE.
DATE MANUFACTURED:____/____/_______ S/N: ________________________1
SIGNATURE:__________________________
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
Date of First Use: ____/____/______ Signature:________________________
1. BC-9000 serial number location- REAR of CASE..