14) manifold pressure (mp) sensor – J.P. Instruments EDM 730 Instrument Installation Manual User Manual
Page 12
FAA APPROVED INSTALLATION MANUAL FOR THE EGT-701 Report 103
INSTALLING THE EGT-701 SCANNER® 1/20/09
Rev-E Page 12 of 30
from engine
MP Sensor
T-fitting
connector
MP gage
14) Manifold Pressure (MP) Sensor
Install a T-fitting (not supplied) in the aircraft’s MP gage line in the cockpit near the MP gage. Install the JPI MAP
sensor
P/N 604010 on the T-fitting. Connect the JPI MP sensor to the wiring harness using the 4-pin connector supplied. The
MAP sensor uses a 1/8 NPT fitting. Note: this is eligible for installation on all 4 & 6 cylinder engines only. There are
no alarm limits.
Manifold Pressure Calibration
The manifold pressure must be calibrated to the ambient air pressure. Enter the current ambient barometric pressure. The engine
must not be running. This setting is not the same as the altimeter setting that you receive from ATIS or unicom. It will vary with
field elevation. Use the chart below to calculate the MP FACTOR. Multiply this MP FACTOR by the altimeter setting that you
receive from ATIS or unicom. For example if the field elevation is 1700 ft and the altimeter setting is 30.1, the MP FACTOR is
0.9400 from the table. Multiply 30.1 x 0.9400 to get the ambient MP of 28.29.
Field Elev MP FACTOR
-500 1.0182
-400 1.0145
-300 1.0109
-200 1.0073
-100 1.0036
0 1.0000
100 0.9964
200 0.9928
300 0.9892
400 0.9856
500 0.9821
600 0.9785
700 0.9750
800 0.9714
900 0.9679
1000 0.9644
1100 0.9609
1200 0.9574
1300 0.9539
1400 0.9504
1500 0.9469
1600 0.9435
1700 0.9400
1800 0.9366
1900 0.9332
2000 0.9298
2100 0.9264
2200 0.9230
2300 0.9196
2400 0.9162
2500 0.9129
2600 0.9095
2700 0.9062
2800 0.9028
2900 0.8995
3000 0.8962
3100 0.8929
3200
0.8896
3300
0.8863
3400
0.8830
3500
0.8798
3600
0.8765
3700
0.8733
3800
0.8700
3900
0.8668
4000
0.8636
4100
0.8604
4200
0.8572
4300
0.8540
4400
0.8508
4500
0.8477
4600
0.8445
4700
0.8414
4800
0.8382
4900
0.8351
5000
0.8320
5100
0.8289
5200
0.8258
5300
0.8227
5400
0.8196
5500
0.8165
5600
0.8135
5700
0.8104
5800
0.8074
5900
0.8043
6000
0.8013
6100
0.7983
6200
0.7953
6300
0.7923
6400
0.7893
6500
0.7863
6600
0.7833
6700
0.7804