Uncorrected barometric altitude, Outside air temperature (500 ohm probe), Outside air temperature (internal constant) – Honeywell MK VI User Manual
Page 271

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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6.1.3 Uncorrected Barometric Altitude
Data Item
Value
Signal Name:
Uncorrected Baro Altitude, DC Voltage
AIC Algorithm:
DC Absolute
Signal Dynamic Range:
–19,334 to +31,166 Feet
Signal Reasonable Range:
–1500 to +30,000 Feet
Signal Open Wire Threshold
–3000 Feet
Reference Dynamic Range:
None
Reference Reasonable Range:
None
Scale:
Altitude (Feet) = 3150 Feet/VDC * Volts – 17250 Feet
Input Signal Connection:
(+) = J1-62, (–) = J1-43
Input Reference Connection:
None
AIC Name:
D2 (DC2)
External Validity Flag Connection:
J1-9
AIC LSB:
2 Feet
AIC Status Mask:
0000200F
External Validity Type:
Discrete Validity
6.1.4 Outside Air Temperature (500 ohm probe)
Data Item
Value
Signal Name:
Outside Air Temperature, DC Signal
AIC Algorithm:
DC Absolute
Signal Dynamic Range:
–85 to +60 °C
Signal Reasonable Range:
–70 to +60 °C
Signal Open Wire Threshold
–80 °C
Reference Dynamic Range:
None
Reference Reasonable Range:
None
Scale:
V
OAT
OAT (in °C)
< 0.43448
525.50676* V
OAT
– 268.805
>= 0.43448 and < 0.49212
545.64369* V
OAT
– 277.560
>= 0.49212 and < 0.54816
566.02357* V
OAT
– 287.594
>= 0.54816
581.96990* V
OAT
– 296.270
Input Signal Connection:
(+) = J1-63, (–) = J1-44 (see section 5.3.2 for hookup)
Input Reference Connection:
None
AIC Name:
D5 (DC5)
External Validity Flag Connection:
None
AIC LSB:
0.03125
°
C
AIC Status Mask:
0000200F
External Validity Type:
None
6.1.5 Outside Air Temperature (Internal Constant)
Data Item
Value
Signal Name:
Outside Air Temperature, DC Signal
AIC Algorithm:
DC Absolute
Signal Dynamic Range:
Constant, no external connection
Signal Reasonable Range:
Constant, no external connection
Signal Open Wire Threshold
None
Reference Dynamic Range:
None
Reference Reasonable Range:
None
Scale:
OAT (in °C) = 25°C Constant
Input Signal Connection:
(no external connection)
Input Reference Connection:
None
AIC Name:
None