TB 9-6625-2332-50
Table 16. 9211 Delay - Continued
Digitizing oscilloscope
Test instrument
Digitizing oscilloscope
∆T indications
settings
settings
(sec)
Per
Wid
Delay
Time range
Time delay
Min
Max
2m
1.75 m
1m
2e-3
1.8e-3
0.995e-3
1.005e-3
20 m
17.5 m
10 m
20e-3
18e-3
9.95e-3
10.05e-3
200 m
175
m
100 m
200e-3
180e-3
99.5e-3
100.5e-3
(15) Press DISABLE pushbutton (model 9211 output module) to off (red light lit).
(16) Disconnect cable from TI 9211 module OUTPUT.
(17) Connect cable to TI 9215 module OUTPUT.
(18) Press TI pushbuttons as listed in (a) through (h) below:
(a)
CHANNEL B.
(b)
Vhigh and
enter 5 from data keyboard and
press ENTER/HZ.
(c)
Vlow and
enter 0 from the
data keyboard and
press ENTER/HZ.
(d)
Lead and
enter 5 from data keyboard and
press n/GHz.
(e)
Trail and
enter 5 from data keyboard and
press n/GHz.
(f)
Per and
enter 40 from data keyboard and
press n/GHz.
(g)
Wid and
enter 10 from data keyboard and
press n/GHz.
(h)
Press DISABLE pushbutton (model 9215 output module) to on (red light
extinguished).
(19) Setup digitizing oscilloscope to display the pulse train.
(20) Setup digitizing oscilloscope to perform a ∆T measurement by placing V marker
1, V marker 2, Start Marker and Stop Marker at the same point of the leading edge of the
left most pulse that is displayed on the crt.
(21) Press TI pushbuttons as listed in (a) and (b) below:
(a) CHANNEL B.
(b) Delay and enter 10 from data keyboard and press n/GHz.
(22) Set digitizing oscilloscope Stop marker on the leading edge of the displayed pulse
where the V markers intersect the pulse.
(23) Verify that the digitizing oscilloscope ∆T indication is within the limits listed in
(24) Set TI to the next Per and Wid settings listed in table 17.
(25) On the digitizing oscilloscope turn off the V markers and the Start and Stop
markers.
(26) Repeat (22) and (23) above.
(27) Press TI pushbuttons as listed in (a) and (b) below:
(a) CHANNEL B.
(b) Delay and enter the next delay value in table 17 from the data keyboard.