Victron BMV 702 battery monitor
Precise monitoring:
The main task of battery monitoring is to monitor the battery's state of charging in order to display unexpected complete discharges. For this purpose, the current flow is measured continuously and the current battery charging status is recorded. An alarm can be triggered when a set threshold value is reached. The ampère hours are determined by integrating the current flow into or from the battery. With constant current, the integration of the multiplication of electricity and time corresponds. For example, a discharge current of 10a over 2 hours results. a value of 20Ah. Victron battery guards are equipped with powerful, programmed microprocessors.
Functions:
The remaining battery capacity depends on the used ampers' hours, the discharge current, the
Temperature and the age of the battery. Complex software algorithms are required to all of them
To take into account variables.
Apart from the basic display options such as voltage, electricity and used amperpers hours, the BMV-702 series also shows the charging status, the remaining term, the battery temperature and power consumption in watts. The centerpiece of a battery range is also monitored.
Additional input for measuring the voltage of a second battery.
Easy installation and programming:
All electrical connections are carried out with the circuit board connector on the Strom-Shunt. The shunt is connected to the guard via a standard RJ12 telephone cable.
A quick installation menu and a detailed setup menu with scrolling supports the user during the settings.
Standard functions
- Battery voltage, electricity, power, used ampers and charging, temperature of the battery
- Remaining term with current discharge rate
- Monitoring of the center voltage of a battery range
- Measuring the tension of a second battery
- Programmable visual and acoustic alarm
- Programmable relays to switch off insignificant loads or switch on a generator if necessary
- Shunt capacity of up to 10,000 amps can be selected.
- Ve.direct communication connection
- Save a wide range of course data, based on which usage patterns and battery status
can be evaluated.
- Wide input voltage area: 9.5 - 95 V
- High current measuring resolution 10 MA (0.01 a)
- Low power consumption 2.9 AH per month (4 mA) at 12 V and 2.2 AH per month (3 MA) at 24 V
Monitoring of the center voltage:
This function, which is often used in industry to monitor large and costly batterys, is now available for the first time at a cheaper price so that any batteryank can be monitored. A battery bank consists of a strand in series connected cells. The central voltage is the voltage according to half of the strand. Ideally, the center voltage is exactly half of the total voltage. In practice, however, there are deviations. These are dependent on numerous factors, such as B. from a different state of charge for new batteries or cells, different temperatures, internal leak streams, capacities and many more.
Large or increasing deviations in the center voltage indicate improper battery care or an incorrect battery or cell. Correcting measures as a result of a centerpoint tension alarm can prevent serious damage to an expensive battery.
Details:
Resolution and accuracy (with a 500 A shunt):
Electricity ± 0.01 a
Voltage ± 0.01 V
Ampers hours ± 0.1 Ah
Charging status (0-100 %) ± 0.1 %
Remaining term ± 1 min
Accuracy of the current measurement ± 0.4 %
Accuracy of the voltage measurement ± 0.3 %
Dimensions: 65 x 65 x30
Standards:
Safety EN 60335-1
Emissions / immunity EN 55014-1 / EN 55014- 2
Automotive industry ECE R10-4 / EN 50498
Scope of delivery:
-500 amps/50 mV quick connection shunt
And a connection set:
- RJ 12 cable (10 m)
- Battery cable with fuse (2 m)
- Separate front panel for a square or round display
- Safety ring for a back assembly, screws for a front-side assembly
The cable with an integrated temperature sensor must be purchased separately (part number: Ass000100000)!
