Blaze AHRS-2 / AHRS-4 / MAG-2 Operating Manual
Page 20
9 Specifications
Operating Temperature Range
-10ºC to 60ºC (14ºF to 140ºF)
Storage Temperature Range
-20ºC to 80ºC (-4ºF to 176ºF)
Humidity
<85% non-condensing
Power Supply
8 to 30Vdc SMPS (switch mode power supply) with built in 33V over volt-
age and reverse voltage protection
Current Consumption
Approx. 130mA @ 12V (backlight highest setting), 50mA @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. 150 grams (Instrument excluding cables)
Non-volatile memory storage
100000 write cycles
NMEA Supported Message
GPRMC (Recommended Minimum Sentence)
GPGGA (Global Positioning System Fix Data)
GPGSA (GPS DOP and active satellites)
GPGSV (GPS Satellites in view)
NMEA Supported Baud rate
1200 to 115200
10 Operating the alarms
The alarm output can be used to switch an external alarm indicator. The external alarm switch is an open collector tran -
sistor switch to ground with a maximum rating of 0.25A DC. It is possible to wire the alarm contacts of several Stratomas -
ter instruments in parallel should this be desired. To avoid false activation of the alarms, the alarm function is only active
10 seconds after the instrument has powered up.
11 Firmware Upgrading
The AHRS-2 / AHRS-4 / MAG-2 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.
12 Installation
AHRS-4
The Tilt Compensate function must be done after the installation of the AHRS-4 has been completed. This allows installa-
tion of the AHRS-4 at angles other than vertical (face). The tilt compensation only needs to be performed once.
Note:
Please see corresponding SP-X sensor package manuals for more information about the
installation and use of the artificial horizon and compass.