MD Helicopters 369D - Engine Oil Temperature;Engine Oil Pressure; N1 Tachometer; NR;N2 (NP) Dual Tachometer Indicator; Oil Pressure Calibration Data

CSP-HMI-3 MD Helicopters, Inc.
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10. Power Train Instruments Adjustment/Test
(600N)
A. N
1
Tachometer
Table 501. N
1
Tachometer Calibration
Indicated
Position
%RPM
Nominal
Signal
(Hz)
Tolerance
Low Input
Tolerance
High Input
0 0.00 0.00 116.02
40 7140.00 7023.98 7256.02
80 14280.00 14163.98 14396.02
100 17850.00 17733.98 17966.02
130 23205.00 23088.98 23321.02
B. N
R
/N
2
(N
P
) Dual Tachometer Indicator
Table 502. Dual Tachometer Calibration
N
R
Calibration Data
Indicated
Position
%RPM
Nominal
Signal
(Hz)
Tolerance
Low Input
Tolerance
High Input
0 0.00 0.00 13.95
200 587.00 578.93 595.07
300 880.50 872.43 888.57
400 1174.01 1165.94 1192.08
500 1467.51 1159.44 1475.58
550 1614.25 1606.19 1622.33
(475.33) (1395.1) (=100% N
R
)
N
2
(N
P
) Calibration Data
Indicated
Position
%RPM
Nominal
Signal
(Hz)
Tolerance
Low Input
Tolerance
High Input
0 0.00 0.00 61.30
50 5108.50 5047.20 5169.80
80 8173.60 8112.30 8234.90
100 10217.00 10155.70 10278.74
120 12260.40 12199.10 12321.70
C. TOT Indicator
Table 503. TOT Indicator
Exceedance Monitoring Data (C47M)
Exceedance
Low
Temp.
High
Temp.
Duration
Operating 727° C 779° C >5 Min.
Operating 779° C 871° C >12 Sec.
Operating >871° C >0 Sec.
Starting 826° C 927° C >10 Sec.
Starting 927° C >1 Sec.
Starting >927° C >0 Sec.
Calibration Data
Scale Error Test
Minimum
mV
Maximum
mV
0 = 0.00 −0.41 0.41
400 = 16.40 15.99 16.81
700 = 29.13 28.72 29.54
850 = 35.31 34.90 35.72
1000 = 41.28 40.87 41.69
D. Engine Oil Temperature/Engine Oil
Pressure
Table 504. Engine Oil Temperature/Engine
Oil Pressure Calibration Data
Scale Error Test
°C Ohms
Minimum
Ohms
Maximum
Ohms
15 = 1394 1366.1 1421.9
60 = 212 203 222
1O7 = 48 20.1 75.9
125 = 30 2.1 57.9
Scale Error Test
°PS Vdc
Minimum
Ohms
Maximum
Ohms
50 = 1.83 1366.1 1421.9
100 = 3.17 203 222
130 = 3.97 20.1 75.9
150 = 4.50 2.1 57.9