Blaze ASV-2 Operating Manual
Page 18
10 Installation
Connect a pitot tube to the “pressure port” and if required connect the static port.
Connect the static port to a suitable static air pressure line. If you have a slow aircraft or an aircraft where the internal
cabin pressure does not change during flight and is equivalent to the outside air pressure you may find that it is not
required to connect a static port. Most small aircraft such as ultralights or microlights do not require a connection to a
static port. In these cases, simply leave the static port open. Ensure however that the static port does not receive
pressurized air due to the forward movement of the aircraft. Be especially critical of your pod or panel if you do not use a
static port. Any build up of a pressure differential due to ram air or suction can lead to large errors of the indicated
airspeed and altitude. Static ports are usually mounted at a strategic position on the rear side of the aircraft fuselage for
faster, pressurized aircraft.
The ASV-2 pressure ports take 4mm ID tubing. Use hose clamps to fasten the hose onto the ASV-2 pitot and static ports.
The ASV-2 allows you to calibrate the airspeed reading. This is done under the “AIRSPEED SETUP” menu item. The
main reason for this is to be able to remove errors introduced due to the airflow around your aircraft which may have an
effect on your pitot tube pressure.
10.1 Connection Diagram
The use of an external 1A fuse is recommended. Connect the supply terminals to your aircrafts power supply. The ASV-2
can be used on both 12V and 24V without the use of any pre-regulators. Ensure that the supply voltage will not drop
below 8V during operation as this may result in incorrect readings.
