TB 9-6625-2802-35
(10) Repeat steps (1) through (4) above.
approximately 2 mm to right of right hand
grid line. Right hand grid line
19. Linearity.
(4)
Repeat steps (1) through (3) above for
channel.
a. Performance Check.
b. Adjustment Use span accuracy procedure ,
(1) Set dc voltage standard (Al) to 0 Vdc and
CHART SPEED to 5 mm/SEC.
21. Step Response.
(2) Set CHANNEL 1 pen position to right hand
a. Performance Check.
grid line.
voltage standard (Al) to set pen on left
SPEED to 100 mm/SEC and CHANNEL 1
hand grid line. Divide the dc voltage
pen to center line of grid.
standard output by five to obtain the test
decrement.
(4) Decrease the dc voltage standard by the
Hz, 5 volt peak-to-peak square wave and
test decrement. The pen should be within
apply to the input of the preamplifier. If
+ 0.5 mm of the grid line.
overshoot is less than 2%, 1 mm perform
b. below.
(5) Perform steps (3) and (4) above for 50
mV/DIV and 2 V/ DIV.
(3) Repeat steps (1) and (2) above for
channel 2.
(6) Repeat steps (1) through (5) above for
channel 2.
b. Adjustments. Adjust DAMPING control on the
servo amplifier board if the overshoot is greater than
b. Adjustments. No adjustments can be made.
2%.(R).
20. Electrical Limits.
22. Final Procedure.
a. Performance Check.
a. De-energize and disconnect all equipment and
(1) Set dc voltage standard (Al) to 0 Vdc,
reinstall protective cover on TI.
CHART SPEED to 5 mm /SEC,
b. In accordance with TM 38-750, annotate and
CHANNEL 1 pen to center line of grid, and
preamplifier selector to 0.1 V/DIV.
the TI cannot be adjusted within tolerance, annotate and
(2) Set dc voltage standard to +3 volts. Pen
affix DA Form 2417 (Unserviceable Equipment) tag.
should be approximately 2 mm to left of
c. If the TI can be used for certain maintenance
left hand grid line.
functions, even though not meeting all calibration
(3) Set dc voltage standard to -3 volts. Pen
specifications, affix DA Label 163 (Limited or Special
should be 14
Calibration) to identify equipment which can be used for
some specific procedures.
14