Then, in the following order, input:
- Measuring altitude start
- Current temperature
- Select the frequency of measurements
- Set the way the reset altimeter (described below)
- Number of the competitor
When you press "Save", entered settings will be saved to the altimeter. Exit
without saving the occurs after the closing of the window (click on X).
These settings are remembered by the altimeter, even after power is switched
off. Just a single programming is enough.
Before measuring, you must reset the altimeter. This can be done through
the program, pressing the button "Reset". After an additional confirmation,
the message of altimeter reset appears. You can now disconnect it from the
computer and connect the battery. Proper reset is signaled by a single, short-
blinking LED. No reset is signaled by 3 blinks of the diode. Altimeter can
also be reset by shorting the pins. To make this possible, you must first set
the "Manual Reset" to 'Yes'. If it is set to 'No', then reset is only possible through the program.
Locking this reset is required during the competitions
6. Assembly of altimeter In the model
It is very important how to install the altimeter in the model. In particular, this applies to
measurements on competitions. The chamber, in which the altimeter is assembled, can not be tight.
There must be holes, allowing the pressure around the altimeter to equalize atmospheric pressure.
Before inserting into the enclosure, you should make sure that the LED is blinking single flashes
(altimeter alarm reset). Be careful with any assembly work, so as not to produce negative pressure
in the chamber of the altimeter. Particular attention should be paid when removing the head of
rockets. We can create a vacuum in the chamber of the altimeter and thus start the measurement.
The altimeter rejects measurements of pressure changes that last less than 2 seconds. However,
before re-assembly of the model, you need to make sure that the altimeter is reset, and possibly
reset it. Measurements start after about 15 seconds from the power connection.
7. Altitude measurement.
Altimeter can be powered from any battery with a voltage of 3.3 V to 6V. Altimeter’s
contacts have 2mm spacing, so be sure to use the appropriate plug. At the end of this manual there
are addresses of online shops where you
can buy these connectors, and the names
of these connectors. The figure shows the
power connection. Altimeter is protected
against reverse connection of power
supply.
After connecting the power, LED blink once or three times.
This is a state reset. After a time of 2 seconds the LED is
blinking, then displays the serial number of the altimeter. You
can stop the display of the short connection of the reset pins.
