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STAR-TANK, is a radar tank sensor with Bluetooth, designed to integrate with the Victron Energy Cerbo GX system. It can measure tank depths of up to 2m.
STAR-TANK, is a radar tank sensor with Bluetooth, designed to integrate with the Victron Energy Cerbo GX system. It can measure tank depth up to two meters and wirelessly sends information via Bluetooth to the Cerbo GX unit, allowing the tank level to be displayed in the Victron system. STAR-TANK works for fuel, fresh water, grey water, and black water tanks.
Features:
Mounting:
STAR-TANK can be glued to a non-metallic tank, or mounted on a metal tank using the included SAE 5-hole mounting.
Usage:
STAR-TANK sensor support is built into Venus OS, and these radar tank level sensors use Bluetooth Low Energy. This wireless technology allows devices to communicate within a range of approximately 40 meters (with Bluetooth adapter to Cerbo GX) and consumes significantly less power than traditional Bluetooth. The expected battery life is 5 years at an average tank fill of 50%, but may be shorter if tanks are more or less filled. Fluid level, temperature, and sensor battery voltage are streamed wirelessly to the GX unit.
Technology:
STAR-TANK is equipped with a phase-coherent radar sensor that works for non-pressurized tanks. The tank level is measured up to 2 meters, but the top 30 mm from the sensor base are not measurable. For fiberglass tanks, for example with a thickness of 12 mm, up to 18 mm from the top edge of the tank is measured.
The sensors are easily attached to the top of all non-metallic tanks, including thick fiberglass tanks. For metal tanks, the sensor needs to have a clear view of the liquid. For this purpose, a 5-hole SAE pattern adapter is included. To ensure an airtight seal, use gas sealing tape (often pink) around the thread to prevent gas from the tank from penetrating through the sensor.
Machine Learning:
STAR-TANK has advanced machine learning features for calibration using AI. The sensors capture hundreds of reflected radar signals from the bottom and sides of the tank. During the first 10 seconds in "setup" mode, the software selects the dominant value, and then retains the profile for the selected tank depth. When a new depth is selected in setup mode, a new filtering profile is stored. By performing the setup process, the filtering of the reflected signals is adapted to accurately measure the tank level.
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