Blaze ALT-7 Operating Manual
Page 13
7 Specifications
Operating Temperature Range
-10ºC to +55ºC (14ºF to 131ºF)
Storage Temperature Range
-20ºC to 80ºC (-4ºF to 176ºF)
Humidity
<85% non-condensing
Power Supply
10 to 30Vdc
Current Consumption
Approx. 125mA @ 12V (backlight highest setting), 45mA @12V (backlight
lowest setting)
Display
2.6” 320x240 IPS color LCD display
Minimum 600cd/m2 brightness
Sunlight readable with anti-glare coating
LED Backlight can be set to automatic or can be manually adjusted
Alarm Output
Open collector transistor switch to ground
Maximum rating 0.25A
Dimensions
see Blaze series dimensional drawing
Enclosure
3 1/8” (80mm) ABS, black in color, front or rear mounting. Flame retardant.
Weight
Approx. 180 grams (Instrument excluding cables)
Non-volatile memory storage
100000 write cycles
Altitude sensor ADC resolution
24 bit
Altimeter range
-1500ft to +35000ft (-457m to +10668m)
Altitude units
ft or m
Baro Correction Range (inHg)
28.00 to 31.00 “Hg
Baro Correction Range (mB)
946 to 1050 mb
Pressure units
“Hg or mb
VSI range
+-20ft/min to +-10000ft/min
VSI units
ft/min or m/s
Serial Port
RS232 voltage levels
Calibration interval
1 Year
Gillham code port
D15F connector (Cable is Male), Open collector darlington drivers
8 Operating the alarms
The alarm output can be used to switch an external alarm indicator. The external alarm switch is an open collector
transistor switch to ground with a maximum rating of 0.25A DC. It is possible to wire the alarm contacts of several
instruments in parallel should this be desired.
9 Firmware Upgrading
The ALT-7 can be upgraded in the field by connecting the RS232 port to a PC and running the firmware update program.
Note that only the RS232 port can be used to upgrade the firmware.
Please see the Blaze firmware upgrading document for more information.
