Calibration of the dome provides a number of encoder counts attributable to the full rotation of the
dome. It is a fully automated process that takes place in two phases:
1. In the first phase, the dome rotates in the CCW direction until it gets a signal from the Home
sensor. At this point, the encoder counter is reset to zero.
2. In the second phase, the dome continues rotation in the CCW direction until it gets another
signal from the Home sensor. At this point the encoder counter value is saved in Az Counter for
360° field. After saving this value the calibration procedure is completed.
Attention: The dome must not be manually controlled during the calibration!
Azimuth of the dome is calculated on the basis of the current encoder counter value according to
the formula:
Az = AzCounter * AzCounterScale + HomeSensorPosition
where azCounterScale is the number of degrees per one the dome’s encoder counter count.
During each dome’s transition over the Home sensor the encoder counter value is reset to zero. It
increases the accuracy of the dome’s azimuth measurement.