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Instructions for GWL models including: GWL M-BC21, Battery Capacity Tester, GWL M-BC21 Battery Capacity Tester, Capacity Tester
Parameter. Min. Type. Max. Unit. Working voltage. 8.0. 80.0. V. Working dissipation. 10.0. 12.0. mA. Standby dissipation.
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DocumentDocumentEGJWBLC/M21-BBCa2t1teBrayttCearypaCcaiptyacTiteysTterster Weight g Attention: Please connect as shown strictly. The sampler Size ø59*20 mm must be connected to the negative circuit it is forbidden to Sketch --Instruction-- Working interface description connect to the positive circuit. If you want to extend the shielded wire you must use 4 lines of same specification. Install Firstopen a round holes of 54.5mm on the panel of the equipment. Then install the coulometer from the front of the panel. Finallytighten the bracket on the back. As shown below: Product overviews BC21 is a kind of high precision current type battery capacity tester(also known as coulometer)which can test the voltagecurrent and capacity of battery to help users know the state of battery in time. BC21 have memory function. It is suitable for mobile and portable equipmentse-bikebalance carscleaning machinesinstrumentsups and so on. Application BC21 is suitable for lithium batteries lithium iron phosphate batteries lead-acid batteries and nickel-metal hydride batteries which working voltage is from 8V to 80V. Basic parameters Parameter Min Type Max Unit Working voltage 8.0 80.0 V Working dissipation 10.0 12.0 mA Standby dissipation 0.5 0.6 mA Sleep dissipation 50 60 uA Voltage accuracy ±1.0 Current accuracy ±1.0 % Capacity accuracy ±1.0 % Backlight on current(50A) 30.0 60.0 mA Backlight on current(>50A) 80.0 120.0 mA Preset capacity value 0.1 999 Ah Current of 50A sampler 0.0 50.0 75.0 A Current of 100A sampler 0.0 100.0 150.0 A Current of 350A sampler 0.0 350.0 400.0 A Temperature range 0 20 35 7 Connect We need a shielded wire and a ordinary wire (0.3-0.75 mm²).One end of the ordinary wire connects to positive of battery another end connects to B+ of sampler (any one is ok). The B- of sampler connects to B- of battery. P- of sampler connect to P- of output. Finally connect sampler to coulometer by the shielded wire.(Notice: The diagram is not equal proportion) Connection diagram of 50A sampler Connection diagram of 100A/350A sampler 8 Bracket Panel Using steps 1. Connect and check the currentPower on after complete the connection as shownthe screen should display capacity percentage. If the screen has no responseplease check the connection. Then charge or discharge the battery, and check whether the display current is equal to the actual current. If the deviation is large please check the connection. 2.Capacity resetOn first usethe percentage and capacity are not the actual valueyou should reset the capacitydischarge the battery totally and hold the" "key for 3 seconds to set the capacity zero or charge the battery fully and hold the" "key for 3 seconds to set the capacity full. And it doesn't need to do this again later, except replace the battery. 3.Check and reset the actual capacityIf you find the display capacity don't match the actual capacityplease check and reset the actual capacitydischarge the battery totally and hold the " "key for 3s to set the capacity zerothen set the capacity value as large as possible. Then charge the battery fullyand the display capacity is the actual capacity. Finally set the display capacity as preset capacity (Please refer to use and setting). Other description 1. When charging or dischargingthe coulometer must be at work. Otherwise the capacity will not be accurate. 2. Connect the loadwhen the discharge current is higher 9 than backlight on current, the backlight on (if backlight blinking the RS+ and RS- are inversely), and display discharge indicator ,indicate battery is discharging. 3. Break the loadand connect the charger. When the charge current is higher than backlight on currentbacklight blinking (if backlight onthe RS+ and RS- are inversely), and display charge indicator ,indicate battery is charging. 4. When the charge or discharge current is less than backlight off current, coulometer enter a low power state and backlight off. And TR16 can memory the capacity. 5. Because of high sensitivitywhen the coulometer is in standby mode (battery has no input or output current)if it is interfered by electromagnetic radiation (open or close inductive loadssuch as the motor) nearlythe backlight will shortly open. 6. When the current changes frequently the date acquisition may produce errorand it will affect the accuracy. Use and setting Change display interface After power on, display capacity percentage. Click" "key, display voltage; click" "key, display capacity, click" "key again, display current; click" "key, display percentage. zero capacity voltage setting. The set bit flicker, click the" "or " "key to plus and minus the value, then press the" "key to complete setting. When the voltage is lower than the value the percentage will be 0%and backlight off. 2. Under capacity display, press the" "key for 3s to enter capacity setting. The set bit flicker, click the" "or" "key to plus and minus the value, then press the" "key to complete setting. NoteGenerally the zero capacity voltage do not need to set. The default is 0V mean invalid. If you want set please understand the actual charge and discharge voltage of battery firstly. Set capacity zero or full When on first use or change the battery the memory capacity should be set zero or full: In the main interfacehold the " "key for 3 seconds to set the capacity zerothe percentage is 0hold the" "key for 3 seconds to set the capacity fullthe percentage is 100. Attention that the operations can not be restored. Attention and warranty The tester cannot be exposed in the sun for a long time or in the environment with large amounts of ultraviolet radiation when using or storingparticular in winter (-20) and summer (>60)otherwise it will shorten the life of LCD. Within one yearany fault caused by non-artificial reason we should maintain it freely. Our products will keep upgradingif the product you bought is different with this instructionplease take the material object or website as the standard. E&J TECHNOLOGY GROUP CO.,LTD www.appbattery.com info@appbattery.com Preset capacity and voltage setting 1. Under voltage display, press the" "key for 3s to enter 10 11 12