Calibrated Pressure Source Test Set-Up - Piper Malibu Meridian PA-46-500TP Airplane Maintenance Manual

(f) Depress and release the EDU "PAGE" switch until the "CALIBRATION" page is displayed
(Refer to Figure 4).
(g) Observe and verify that the calibration display on the EDU shows "READY", "UNCAL HI"
and "UNCAL LO" for "TORQUE", "CH A" and "CH B".
(h) Connect the Torque Transducer to a calibrated pressure source (Refer to Figure 5).
(i) Referring to Chart 1 and using the calibrated pressure source, apply the pressure
corresponding to zero (0) LBS-FT of torque to the torque transducer.
(j) Hold the SW-3 toggle switch on the DAU in either the "CAL" or "MIN" position for a
minimum of 3 seconds. Verify that the EDU display shows "CAL LO VALID" for "CH A",
"CH B" for "TORQUE".
(k) Verify that the rectangles below "CH A" and "CH B" contain the value "0".
(l) Referring to Chart 1 and using the calibrated pressure source, apply the pressure
corresponding to 1313 LBS-FT of torque to the torque transducer.
(m) Hold the SW-4 toggle switch on the DAU in either the "CAL" or "MAX" position for a
minimum of 3 seconds. Verify that the EDU display shows "CAL HI VALID" for "CH A",
"CH B" for "TORQUE".
(n) Verify that the rectangles below "CH A" and "CH B" contain the value "100".
(o) Calibration of the Engine Torque is completed, turn aircraft main power off and disconnect
the calibrated pressure source.
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Apr 15/07
PIPER AIRCRAFT, INC.
PA-46-500TP, MALIBU MERIDIAN
MAINTENANCE MANUAL

Calibrated Pressure Source Test Set-up

Figure 5
7I16