TB 1-4920-443-35
(8) Verify that the TI Strain Gage Conditioner digital indicator displays 400 2 foot-pounds. If the required
weight is not obtained, adjust the TI Strain Gage Conditioner SPAN COARSE and FINE controls until
the TI Strain Gage Conditioner digital indicator displays the required weight within 2 foot-pounds.
(9) Add an additional 100 pounds of alignment weight to the transducer torque pan for a total alignment
weight of 300 pounds.
(10)Verify that the TI Strain Gage Conditioner digital indicator displays 600 2 foot-pounds.
(11)Remove the alignment weights from the transducer torque pan.
(12)Verify that the TI Strain Gage Conditioner digital indicator displays the zero value 2 foot-pounds. If
the required weight is not obtained, repeat steps 5 through 12 until the correct indication is obtained.
(13)Depress the TI Strain Gage Conditioner - CAL (T700) pushbutton and observe the weight displayed
on the TI Strain Gage Conditioner digital indicator. Record this weight for future reference. It will be
used for subsequent alignment computations and daily checks.Depress the TI CHANNEL CALLER
channel #1 pushbutton. Ensure that the TI Strain Gage Conditioner digital indicator is in RPM display
mode.
(14)Verify that the TI CHANNEL CALLER digital indicator displays 0 RPM; if not, adjust the RPM ZERO
control for a 0 display.
(15)Connect the test oscillator to TI plug E1 (8,9) and adjust the test oscillator frequency as follows:
(16)T700 engine: 1393.3 1 Hz (1v p-p)
(17)Adjust the TI Strain Gage Conditioner SPAN COARSE and FINE controls for a digital indicator
display as follows:
(18)T700 engine: 20,900 10 RPM
(19)Disconnect the test oscillator signal from TI plug E1 and verify that the TI Strain Gage Conditioner
digital indicator displays 0 10 RPM.
(20)Depress the TI Strain Gage Conditioner CAL pushbutton and observe and record the digital indicator
RPM value displayed.
(21)Depress the TI CHANNEL CALLER channel #2 pushbutton. Ensure the TI Strain Gage Conditioner
digital indicator is in the horsepower display mode.
(22)Verify that the TI Strain Gage Conditioner digital indicator displays zero horsepower. If this display is
not obtained, adjust the TI HP ZERO control for a zero digital indicator display.
PUSH to CAL pushbutton. Verify that the value displayed on the TI Strain Gage Conditioner digital
indicator is the product of the values of the strain gage indication recorded in step 13 and the RPM
value recorded in step 19 divided by 5252.
(24)Example: (CAL FT-LBS x (CAL RPM) / 5252 = displayed value).
(25)If the displayed value is not correct, adjust the TI Strain Gage Conditioner HP SPAN COARSE and
FINE controls to obtain the value determined mathematically.
pushbutton, then reinstall the CAL value with SPAN controls. Release the (-) CAL pushbutton.
