NASA Marine BM-1 Compact Instructions Manual
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READ THIS FIRST!Before installing the BM-1 Compact,CAREFULLY READ THE FOLLOWING INSTRUCTIONS,ESPECIALLY THE SAFETY NOTES AND WARRANTY CONDITIONS.INTRODUCTIONThe NASA BM-1 Compact is supplied complete with display unit,current shunt (standard 50mV), and connecting cables. It isintended for operation on 12V Lead-Acid batteries with capacitiesbetween 5 and 600 Ampere-hours (Ah). Its own current consumptionis less than 1.5mA, which is about 1 Ah per month, less than the self-discharge rate of most Lead-Acid batteries.The NASA BM-1 Compact monitors the battery voltage, the currentinto and out of the battery, and predicts the time to achieve full charge(during charging) or the time to full discharge (during discharging).A visual indication of the state of the battery charge is always available,and an alarm is used as an alert when the battery voltage falls to apreset level.INSTALLING THE DISPLAYSafety notes - IMPORTANTLead-acid batteries can emit hydrogen when in operation. Hydrogenand air forms a potentially explosive mixture. Accordingly, ensure thatthe area around the batteries is well-ventilated, and douse all nakedflames and prevent sparks. Short-circuiting a battery with a metal toolor piece of jewellery can cause catastrophic currents to flow. Beforeinstalling any of the BM-1 Compact units, remove all jewellery (suchas rings or metal necklaces). Ensure that no metal tool can cause ashort circuit. If you are not sufficiently skilled to undertake any part ofthis installation safely, you must seek the assistance of a suitablyqualified person.2 |
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