barfield DPS1000 - Table 3 Aeronautical Specifications; Table 4 Pressure Units Specifications

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C. Performance
Aeronautical (DPS1000)
Ps Channel
Altitude
ALT
Rate of Climb
ROC
Pt Channel
Calibrated Airspeed
CAS
Rate of CAS
RtCAS
Mach
Units
Feet
ft/min
knots (kts)
kts/min
-
Operating
Range (*3)
-1,800 to 55,000
0 to 20,000
0 to 6,000 (*1)
0 to 650
50 to 600 (*2)
0 to 2.8
Accuracy
0.01% FS
± 3 ft @ 0 ft
± 6 ft @ 20,000 ft
± 8 ft @ 30,000 ft
± 14 ft @ 45,000 ft
± 22 ft @ 52,500 ft (*3)
± 29 ft @ 53,000 ft (*3)
± 22 ft @ 55,000 ft
± 2 % of value
± 1.0 kts @ 20 kts
± 0.5 kts @ 50 kts
± 0.2 kts @ 650 kts
± 2 % of value
Better than
± 0.005
MACH > 0.1
Repeatability
0.0025% FS
± 1 ft @ 0 ft
± 2 ft @ 20,000 ft
± 2 ft @ 30,000 ft
± 4 ft @ 45,000 ft
± 6 ft @ 52,500 ft
-
± 0.5 kts @ 20 kts
± 0.2 kts @ 50 kts
± 0.1 kts @ 650 kts
-
0.001 rising to
0.005
Resolution
1
1
0.1
1
0.001
Stability (12
month) (*4)
0.01% FS
-
0.025% FS
-
-
Table 3 Aeronautical Specifications
Note (*1): ROC (with 125 cu.in volume)
Note (*2): RtCAS (with 75 cu.in volume) Default: 300 kts/min operating in Aeronautical mode.
Note (*3): If MOD “B” is designated, operating range is 55,000 ft, accuracy specification declared
up to 53,000 ft.
If MOD “B” is not designated, operating range and accuracy specification is ± 22 ft @
55,000 ft.
Note (*4): This tolerance represents the stability over a 12 month period. If tighter tolerances
are required, the calibration interval should be reduced or proof of stability should be
established.
Pressure Units (DPS1000)
Ps
Channel
Ps
Rate of Change
ROC
Qc
Channel
(Note: Pt = Qc + Ps)
RtQc
Rate of Qc
EPR
Units
inHg (abs)
inHg/min
inHg (diff)
inHg/min
Ratio: Pt7/Pt2
Operating Range
2.693 to 38.0
0.1 to 16
0.0 to 40 (*7)
0.5 to 10
0.1 to 10
Calibrated Range
3.040 to 38.0
0.1 to 16
0.0 to 40 (*7)
0.5 to 10
0.1 to 10
Accuracy
0.01% FS
± 0.003 inHg
± 2 % of value
± 0.020 inHg (*5)
± 2% of value
0.01
Repeatability
± 0.002 inHg
-
0.001 rising to 0.005
-
-
Resolution
0.0001
-
0.0001
-
1.000
Stability (12 mo.) (*6)
0.01% FS
-
0.025 % FS
-
-
Table 4 Pressure Units Specifications
Note (*5): Regarding Qc Channel: Specification based on typical accuracy (0.05% FS). Maximum
error is 0.10% FS