Clipper® BM-1 - 4.33" x 4.33" Beige Dial/Black Bezel Surface Mount Battery Gauge with 100A Shunt

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$188.91
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Product Details

4.33" x 4.33" Beige Dial/Black Bezel Surface Mount Battery Gauge with 100A Shunt (BM-1) by Clipper®. The BM-1 is designed to monitor performance of 12 volt lead acid battery systems with capacities of up to 600 Amp hours. It is supplied complete with a precision 100 AMP shunt and a prefabricated cable assembly to enable simple DIY installation. The unit continuously monitors voltage, current (charge or discharge), number of amp/hours (charge or discharge), the batteries state of charge and the time to charge or discharge. It also monitors the voltage of the engine strat battery. This information leads to more efficient use of the battery, which can enhance battery life and reduce the risk of failure. Fully monitors domestic battery/bank. Monitors voltage of engine start battery.

Notes

  • This is a Special Order product and, therefore, Non-Returnable.

Specifications

Supply voltage: 8 - 16 Volts DC
Supply current: 1.5 milliamps
Battery capacities: 5 - 600 AMP Hour
Load current: 100 AMPS Maximum
Charge current: 100 AMPS Maximum
Shunt Standard: 50 millivolt @ 100 AMP
Supplied: 100 AMP shunt link to M8 Ring terminal. 5 Metre from display unit to battery - fused and fitted with ring terminals for shunt, fuse holder and M8 ring terminal to battery, Display Unit, Standard 110mm square Clipper case

Features

  • High contrast LCD, backlit for night viewing
  • Minimum voltage visual alarm
  • Simple operation - 4 keys to select backlight
  • Volt/Amp/State of Charge screen
  • AMP hours or Time to run

The minimum information required to monitor the state of charge of a battery is the terminal voltage and the charge/discharge current **. The BM1+ measures both these parameters and computes the state of charge using a complex, well proven, algorithm.

A simple and intuitive display shows the service battery voltage, charge/discharge current, state of charge, and time to charge/discharge. The instrument also warns the user when the charge level is too low so that load can be shed or charging commenced to protect the battery. A resettable Amp Hour counter is provided for checking the efficiency of the charging system or keeping a track of power consumption and a second input lets the user monitor the voltage of the starter battery. The simple display format does not mean the internal software is unsophisticated. In fact two separate algorithms are used. One based on integrating amp hours over the charge and discharge cycle, the second based on an adaptive internal mathematical battery model.

A unique feature of the BM1+ is its ability to use information from both algorithms, during the charge/discharge cycles, to continually update its performance. This means that, unlike many other systems that rely solely on amp hour integration, the NASA BM1+ never needs to be re-synchronised with the battery. The algorithm includes Peukert's equation to ensure accuracy over a wide range of load currents.

The BM1+ does all this whist consuming a meagre one and a half milliamps. It is a true battery monitor, easy to install and excellent value for money.

** Some say that they can calculate the state of charge from the terminal voltage only but, as we all know, the terminal voltage falls when the battery is under load and rises when under charge. This fall and rise can be quite substantial, especially when a heavy current is flowing, so how can the terminal voltage be used to calculate anything without knowledge of the magnitude of the current involved?

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Brand:
Part Number:
BM-1
UPC:
609722871198
Alternate MPN:
BM1

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Clipper® BM-1 - 4.33" x 4.33" Beige Dial/Black Bezel Surface Mount Battery Gauge with 100A Shunt
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