TB 1-4920-443-35
AEDATS II T53 ALIGNMENT WORKSHEET
(6) Fuel flow measurement CEC 2700 BOX T-53/T55/T63
(Refer to page 19 step 23)
(a) Ensure the system is in the T-53/T55 test mode, with the correct flight harness connected to the
J-box.
(b) Set calculating counter controls as follows: (Channel 4)
1 DEC
6
2C
01000
3 10n
0
4 Auto
depressed
5 X10
released
6 Sample Rate (fast)
1
7 Test
released
(c) Determine C settings for channel 4 Channel 4 C = (3600 x 8.337 x specific gravity) divided by the
turbine meter K-factor (Average from calibration sheet)
(d) Enter calculated value on channel 4 C switches
(e) At the fuel trailer disconnect MT-207 from the flowmeter and connect the test oscillator to pins A
(+) and B (-).
NOTE
The frequency counter must have the low pass filter on
(g) Enter Specific Gravity, K Factor and Temp in AEDATS to read PPH from flowmeter Cal sheet.
(h) Connect Temp source to TC 208 to correspond to flowmeter Cal Temp.
1 1 Vac input
(j) Note: oscillator frequency x c = PPH
(k) Enter S/G into AEDATS to read PPH from Cal sheet
(l) Input the following frequencies into connector MT207 pins A (+) and B (-).Lower Flowmeter.
Note: Cell constant Low K Factor (#3)
Oscillator Hz
Calculating Counter
AEDATS 2
Calculating Counter
AEDATS 2
+/- 1 Hz
Sheet Hz
+/- .35 % PPH
(WF)
(WF)
+/- 1 Hz
+/- .35 % PPH
250Hz
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500Hz
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750Hz
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1000Hz
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1250Hz
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(Note: frequency x C = PPH) (CH 4C= 3600 x 8.337 x SG /K factor)
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