Digital altimeter
ALT57
Revision#2.0, 18/11/2014
For firmware version 1.7
Flybox
®
Page 1: ...Digital altimeter ALT57 Revision 2 0 18 11 2014 For firmware version 1 7 Flybox ...
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Page 3: ...MECHANICAL INSTALLATION SECTIONS ELECTRICAL INSTALLATION USE OF THE INSTRUMENT INSTRUMENT SETTINGS TECHNICAL SPECIFICATIONS ...
Page 4: ...s to create a compact and lightweight digital altimeter easy to install and quick to consult SYMBOLS USED IN THE MANUAL NOTE Used to highlight important informations CAUTION Used to warn the user and indicate a potentially hazardous situation or improper use of the product WARNING Used to indicate a dangerous situation that can cause personal injury or death if the instruction is disregarded ...
Page 5: ...ons Refer to your local aviation authorities to check if this device may be installed in your aircraft CAUTION Read entirely this manual before installing the instrument in your aircraft and follow the installation and operating instructions described here CAUTION Using this instrument over the maximum allowable ranges can cause malfunction or wrong indications CAUTION Microel s r l reserves the r...
Page 6: ...ical installation 7 1 2 Dimensions 8 SECTION 2 Electrical installation 2 1 Electrical installation 10 SECTION 3 Use of the instrument 3 1 Use of the instrument 12 3 2 Altimeter alert 14 SECTION 4 Instrument settings 4 1 Instrument settings 16 SECTION 5 Technical specifications 18 Warranty 19 ...
Page 7: ...ts in a standard 2 1 4 57mm panel cutout 1 It s recommended to choose a position that permits optimal display visibility 2 Connect the pipe fitting on the back of the instrument to a static air pressure lines the furnished pipe fitting is suitable for pipe with internal diameter of 5 mm PRESSURE PORT CONNECTION ...
Page 8: ...FLYBOX ALT57 User s manual 8 Rev 2 0 Dimensions 1 2 DIMENSIONS Front view Dimensions in millimeters ...
Page 9: ...ALT57 User s manual FLYBOX 9 Rev 2 0 Dimensions Side view Dimensions in millimeters ...
Page 10: ...FLYBOX ALT57 User s manual 10 Rev 2 0 Electrical installation SECTION 2 2 1 ELECTRICAL INSTALLATION On the backpanel of the ALT57 there s a four pole connector faston 6 3 mm the connections are ...
Page 11: ...in line ALARM OUT altitude alert alarm out 300mA max Connect the load for example a lamp indicator between this out and 12V See chap 3 2 for explanation on the altitude alert function NOTE Insert a 1A circuit breaker or fuse to the power lead 12V CAUTION Voltage peaks on the supply line that exceeds the operating limits can damage the device Connections detail GND ground lead ...
Page 12: ...TRUMENT SECTION 3 At startup the display briefly shows the software version then it display this indication for 30 seconds to allow warm up of the solid state sensor DISPLAY KNOB WITH PUSHBUTTON After this short warm up period it become operative and it shows the current altitude ...
Page 13: ...re reference Rotate the knob to adjust the value then press again the knob or wait two seconds to return to the altitude display NOTE if the first digit of the display is flashing add 10000 to the value displayed it only happens when the unit of measure are in Feet and the actual altitude exceeds 9999 feets CAUTION Before using the altimeter for the first time you must set up the unit of measure f...
Page 14: ...the parameters the display alternate the view of the parameter s name with it s numeric value To scroll to the next previous parameter rotate the knob To modify the parameter displayed press the knob adjust the value and press again the knob to store the value and return to the parameters list The parameters to set are HIGH LIMIT set the maximum altitude above which the altitude alert is activated...
Page 15: ... Done to return back to the normal operations altitude display When the altitude exceeds the low or high limit the display alternate the altitude view with the words HIGH or LOW in this condition the ALT57 also activate the alarm out on the backpanel of the instrument useful for example to lighten a LED on the panel ...
Page 16: ...ue To scroll to the next previous parameter rotate the knob To modify the parameter displayed press the knob adjust the value and press again the knob to store the value and return to the parameters list When you have completed the setup turn off the ALT57 the settings will be stored in memory ALTITUDE FILTER the value vary from 1 minimum filtering the altitude displayed will change rapidly to 255...
Page 17: ...with this parameter you can choose the display update rate between 0 continuous display refresh and 10 updated one time per second Default 3 NOTE To reload all the parameters to its default value follow this procedure with the instrument turned off press the knob then power on and wait 15 seconds on the display first it appear the word Filt after 5 seconds then it appear the word Defa after 15 sec...
Page 18: ...nsions 60 0 x 60 0 x 40 5 mm Weight 125 g Supply voltage 9 30 Vdc Supply current 42 mA 13 8 V Operating temperature range 20 70 C Humidity 90 max Altimeter range 1000 20000 feets Sensor resolution 10 feets Alarm out open collector 300mA max current active low 5 1 TECHNICAL SPECIFICATIONS SECTION 5 ...
Page 19: ... altered by non qualified person WARNING All photos data drawings instruments layouts technical solutions and data representation you find in this document or watching at FLYBOX instruments working and or you can access by means of any other media including web sites are sole property of MICROEL s r l cannot be copied or imitate without a written permission of MICROEL s r l itself and are protecte...
Page 20: ...MICROEL s r l Via Mortara 192 194 27038 Robbio PV ITALY Tel 39 0384 670602 Fax 39 0384 671830 www flyboxavionics it ...
