Vermes
Advanced Member level 4
This voltmeter can be applied in a place of car lighter. Scale presents the current charge, one division is responsible for the range equal to 0,08V. Voltage equal to 12V was accepted as discharged accumulator, and 12,8V – fully charged.
The current charge, expressed in volts is displayed on the right side of the first row.
Temperature with the „in” shows the internal temperature, and the measurement of the second sensor provides external temperature.
Backlight was equipped with regulation on potentiometer and function of automatic brightening in the moment of starting the engine. As the device is permanently connected to the lighter socket, the brightness is set so that information can be read from the display at night, but not to be too strong.
There are also some other information on the display:
- CHARGE – too low level of charge (voltage <12V)
- CHECK OUT – too low charge voltage, displayed for the range of 13,4V-13,9V
- ENGINE ON – the engine is started and the charge voltage is correct, displayed for voltage >13,9
Pictures:
Link to original thread (useful attachment) - Woltomierz samochodowy ze wskaźnikiem naładowania oraz termometrem