BATTERY METER SMART BATTERY GUAGE P/No.
IMPORTANT SAFETY INFORMATION Please read this instruction thoroughly before installing the product. WARNINGS • Risk of explosive gas. Working in the vicinity of a lead-acid battery can be dangerous • Batteries might release explosive gases during normal operation and charging • Before using the product, read and follow the instructions carefully.
OVERVIEW Projecta BM320 – A sophisticated, full colour LCD monitor that accurately displays a battery’s total capacity, overall health and general status. It is Ideal for camper trailer and caravan interiors as it is housed in a modern and simple to install enclosure. The BM320 comes with all the necessary components to connect to your battery system. It has the following features: • 2.
Plug in the supplied four pin connector to the recipicale at the back of the battery monitor. Feed the cable through the pre drilled hole and slide the left hand side of the battery monitor into the bracket tab. Close the battery monitor onto the clip until you hear the “click” sound. Make sure that the cable assembly has been fed into the hole correctly.
SHUNT AND WIRING INSTALLATION IMPORTANT: to maintain accurate record of the battery capacity, all current must be passed through the shunt. Disconnect the battery and turn off all devices before beginning the installation. Mount the shunt in a secure location with adequate protection from damage. The BM320 is designed for 12V applications only. NOTE: There should only be one cable connected to the battery negative terminal.
BATTERY CABLE SELECTION CHART Nearest B&S Nominal Area (mm²) AMP Rating (40°C) Nominal O.D. (mm) 8 7.71 66 5.5 6 13.5 92 7.2 4 20.26 120 8.3 3 26.45 150 10.2 2 32.07 167 11.3 1 39.55 187 12.1 0 49 219 12.7 00 64.15 260 14.5 83.19 298 16.4 000 ALTERNATIVE CONNECTION METHOD NOTE: USE ONLY ONE CONNECTTION METHOD. To connect using your own wiring harness use the supplied terminal block.
QUICK START 1. Press ENTER button to acknowledge the Welcome message on the LCD screen 2. Select the type of battery (AGM,WET,GEL,CAL) 3. Enter the battery capacity and press ENTER button to confirm 4. Enter value for the low battery capacity alarm and press ENTER button to confirm 5. Enter the value for battery health warning alarm and press ENTER button to confirm 6. For most accurate results – Charge the battery to full with any multi-stage battery charger 7.
BATTERY GUAGE USER INTERFACE Main Menu To enter into the main menu press the menu button on the display screen. To move through the menu press the up and down buttons. Press the Enter button to change the settings.
ADVANCED SCREEN Battery Current “+” for Charging and “–“ for Discharging Battery Voltage Battery Health has 4 levels: Ideal, Good, Fair and Poor Battery Capacity 5:30pm Battery Charging 12.5 V + 6.5 A BatteryHealth Battery Health GOOD GOOD BatteryRemaining Power Capacity 100.0 Ah TimeTo Time Remaining Full 120.5 5.
Use Up and Down buttons to change the value of battery capacity which is marked on the battery case. Press ENTER button to apply the changes. The default value is 100Ah. ALARM SETTINGS LOW BATTERY CAPACITY Use Up and Down buttons to change the value of low battery capacity alarm. Reduce the value to 0 to disable the alarm. Press ENTER button to apply the changes. The default value is 10Ah. When the battery depletes its capacity to the set level, an audio alarm is activated.
BATTERY STATE OF HEALTH Use Up and Down buttons to change the value of battery state of health alarm. Reduce the value to 0 to disable the alarm. Press ENTER button to apply the changes. The default value is 30%. The battery state of health diminishes to the set level, an audio alarm is activated. The audio alarm can be muted by pressing any buttons. DISPLAY ON TIME SETTING Use Up and Down buttons to change the LCD display on time. Press ENTER button to apply the changes. The default value is 10 mins.
BRIGHTNESS Use Up and Down buttons to change the brightness of LCD display. Press ENTER button to apply the changes. The default value is 50%. BATTERY HEALTH It is an indicator to show if the battery requires rejuvenation or replacement. 12 Indication Description Ideal or Good No action is needed Fair Try to rejuvenate the battery Poor Try to rejuvenate the battery as soon as possible.
FREQUENTLY ASKED QUESTIONS Q. What is state of charge (SOC)? A. It is the remaining battery capacity expressed as a percentage of full charge capacity. Q. What is State of Health (SOH) or Battery Health? A. It is expressed as a percentage of the ratio of predicted full charge capacity over the design capacity. The BM320 uses 4 levels to represent the battery health: Ideal, Good, Fair and Poor. Please look at the battery health section for more detail. Q. What is the low battery capacity alarm for? A.
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WARRANTY STATEMENT APPLICABLE ONLY TO PRODUCT SOLD IN AUSTRALIA Brown & Watson International Pty Ltd of 1500 Ferntree Gully Road, Knoxfield, Vic.
