USER GUIDE
83
7.7.1 Electrical Calibration
The voltage and amperage (current) readings for your motor
pack, and the voltage readings for your transmitter pack,
camera pack and receiver pack (if used) can be calibrated.
These calibrations are performed in the “Electrical Calibration”
menu. For your convenience, all voltages and currents are
displayed in real time on the electrical calibration page, so you
can compare the Vector readings with the readings of your
voltage and current meter as you change the settings.
Voltage Calibration: To calibrate voltages, change the
“Voltage Factor” for the appropriate voltage. Increasing the
factor increases the reported voltage, and vice versa.
Current Calibration: Calibrating the current sensor typically involves just increasing or decreasing the
“Current Sensor Factor” as appropriate.
One additional calibration setting for the current sensor is the “Zero Offset”. The zero offset is chosen to match
the lowest level of current flow that the Vector’s current sensor can detect. Typically, this is about 300 mA (0.3
amps).
If your current sensor’s true offset is 300mA, and the current offset is set to 0.3 in the menu, the Vector will
always read 0.3 amps when the current draw is less than or equal 0.3 amps, but when the current climbs above
0.3 amps, the Vector will correctly read that current. If your amp meter shows that you are drawing greater
than 0.3 amps when your motor is not running (due to your video camera, video transmitter, the Vector, and
other accessories), but the Vector is reading 0.3 amps, increase this setting until the Vector matches your
meter’s reading. Note that an incorrectly set offset will only cause a very slight amount of error, so changing
the offset is generally not needed.
7.7.2 Altimeter Calibration
The Vector’s altimeter is factory calibrated. When the Vector has been unpowered for a while, it is normal for
a small amount of altimeter drift to occur over a few minutes, as the Vector warms up. When you reset the
home position, or when you arm your multirotor, the Vector’s altimeter is automatically rezeroed, erasing any
drift.
But, if you see your Vector’s altimeter drifting more than a few feet (1-2meters) during warmup, and that is
causing issues for you, you can calibrate it as follows:
1) Make sure that the weather is not changing, which can cause significant barometric pressure
differences in a short period of time.
2) Leave the Vector completely unpowered for at least 30 minutes.
3) Have your transmitter ready, and apply power to the Vector (do this indoors).
4) Within 1 minute (the quicker the better) navigate to the Calibration and Sensors menu, select the
“Altimeter cal (read manual)” item, and click the mode switch.
5) Don’t move the Vector until the calibration process completes (about 3 minutes).
6) The calibration result (pass or fail) will remain in the notification area after the process completes.
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