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Voltage- and Ampere Sensor of Mauch's "Premium Line" (PL). Use in combination with PL BEC or Mauch Sensor Hub X2-V2
The PL-xxx boards are based on the famous Allegra ACS758 hall current sensors, ACS758-050U for the 50A version, ACS758-100U for the 100A version and ACS758-200U for the 200A version. The electronic on the board is powered by an PL - Series or PC - Series BEC and the offset shifting is realized by an OP from Microchip (MCP601) specially designed for microprocessors analog inputs.
The sensor board is only installed into the "positive" (red) main wire from the LiPo, the "negative "black" wire stays untouched, which reduces the risk of short circuits on the sensor board.
The voltage measurement, has an installed filter which reduces the risk of false RTL trigger, which might be happened if we fly in very windy conditions due to sudden motor speed up to keep the flight leveled.
DXF file / PL - Sensor CFK enclosure
Please follow the procedure here: http://ardupilot.org/copter/docs/common-mauch-power-modules.html
Just in case you having trouble to get current or voltage readings from the sensor board, then please check the following.
Is the input voltage in the range of 4.95-5.05V ?
Is the blue LED on the sensor board on ?
Is the sensor installed in the correct current flow direction ?
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