Votronic LCD battery computer 400 S Complete set with earth strap 75 mm²

Microprocessor-controlled, the following values are measured, calculated and displayed:

• Minimum battery capacity 50 Ah
• On-board battery voltage 7 to 32 V (volts). Internal measurement resolution 0.1 V
  Allows conclusions to be drawn about the battery behaviour under different loads and is used for function checks, e.g. of the charger, solar system, dynamo, etc. Flashing warning display in the event of overvoltage.
• Battery current (charge/discharge) +/- 0 to max. +/- 1800 A, internal measurement resolution 0.1 A
  Checking the discharge currents (load) by consumers, indicated by a "-" sign, control of charging currents, indicated by a "Charge" sign.
• Battery capacity (Ah and %)
  Remaining charge from 0 Ah / 0% (empty) to nominal capacity max. 2000 Ah / 100% (full)
• Remaining runtime (h)
• Battery voltage 2nd battery (e.g. starter battery), 7 to 32 V (volts), internal measurement resolution 0.1 V
• Switching output freely programmable and tactile (PNP, plus potential 12V / 24V, max. 0.5A)

How much charge does my on-board battery actually have left? Is the battery really full? Why is energy being drawn from the battery despite consumers being switched off? The VOTRONIC LCD battery computer S answers these questions to the exact percentage (%) and ampere hour (Ah). At the touch of a button, it provides comprehensive information on the current charge status of the battery, the battery currents flowing and the voltage level of the battery. The LCD battery computer S is based on the tried and tested VOTRONIC LCD battery computer. The versatile, easy-to-use display functions have been enhanced by a clearly laid-out, white illuminated LCD display, which is very easy to read even from a great distance and in unfavourable lighting conditions.

The device is constantly in contact with "its battery" and thus registers and evaluates all battery actions. All charging and discharging currents are meticulously counted, battery size, self-discharge, battery load etc. are taken into account using programmed characteristic curve fields. The remaining battery capacity is then calculated from the measured values and the battery size. The result is the correct display of the state of charge (remaining capacity, residual charge) of the on-board battery as a numerical value in ampere hours ("Ah") and in per cent ("%") as well as a clear fill level bar, like a fuel gauge. The LCD battery computer S is suitable for all battery types (acid, gel, AGM, lithium adjustable) with 12V and 24V battery voltage.

Of course, the current battery voltage ("V") and the current battery current ("A") are also available in the display. Discharge currents (consumers) are indicated by a minus sign. Charging currents are also indicated by a clearly legible "Charge" symbol. Independently of this, there is a further display option for the voltage of a second battery, e.g. for monitoring the vehicle's starter battery.

The LCD battery computer S has a freely programmable switching output for control, monitoring and warning purposes, e.g. to automatically switch loads or issue a warning depending on the state of charge of the on-board battery (0-100%). On and off switching points can be set freely and independently of each other in %, enabling any number of switching functions. They can also be overridden manually at any time at the touch of a button.

Application example: Automatic protection of the battery against harmful deep discharge, the loads are switched off exactly according to the state of charge, e.g. at less than 25% state of charge. An EMERGENCY ON function is possible at the touch of a button to continue supplying the loads. The device can therefore also be used as a remote-controlled battery main switch (on/off) with deep discharge protection.

A plug-in connection cable connects the display completely to a robust precision measuring resistor (smart shunt), which is connected directly to the negative terminal of the on-board battery and at which the battery voltages and currents are recorded. The switching output for connecting signalling devices or powerful switching relays is also located here.

Matching the VOTRONIC module system, the device fits in with the other display modules both visually and mechanically (standardised height 85 mm) and the low installation depth of just 22 mm allows installation in almost any location.

Note:The selection of the appropriate Smart Shunt (100 S, 200 S or 400 S) is based solely on the maximum continuous load from the loads (A) and not on the total battery capacity (Ah).

Optional accessories:

• Surface-mounted housing for LCD display units (article no. 2024)
• Ready-to-plug extension cable including 6-pin modular plug (article no. 2005)
• Cover for smart shunt (article no. 2023)
• Switch Unit 40 (article no. 2071)
• Switch Unit 100 (article no. 2072)

Technical data

Assembly and operating instructions German