TB 9-4920-463-24
(f) [ENTER] and wait 10 seconds.
(g) START.
o
o
(22) TI will display 900 RPM 1, 0.40 IPS 0.04 and 275 10 .
(23) Press TI STOP key.
(24) Repeat technique of (18) through (22) for remaining velocimeter and magnetic
o
o
pickup channels listed in table 4. TI will display 900 RPM 1, 0.40 IPS 0.04 and 275 10
for each setting.
Adjustments. None
b.
19. Spectrum Test
a. Performance Check
(1) Press TI keys as listed in (a) through (e) below:
(a) SPECTRUM.
(b) SETUP.
(c) 5, 0, 0, 0 (MAXIMUM FREQUENCY field entry).
(d) [ENTER] and wait 10 seconds.
(e) START.
(2) Verify TI display resembles the example shown in figure 4 below.
Figure 4. TI display 900 RPM example.
(3) Use or keys to move cursor (dotted line) to 900 RPM trace.
(4) TI readout at top of display will indicate peak signal is 0.40 0.04 IPS at 900 5 RPM.
(5) Switch Vibrex tester 11A to 1800 RPM CAM RATE.
(6) Press TI START key.
(7) Verify TI display resembles the example shown in figure 5 below.