TB 9-6625-2332-40
(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 20 from data keyboard and press n/GHz
(g) Press PULSE WIDTH.
(h) Press CHANGE FORMAT to DUTY.
(i) Enter 50 from data keyboard and press ENTER/Hz.
DISABLE (model 9215 output module) to on (red light extinguished).
(j)
(13) Set digitizing oscilloscope channel 3 and trigger probe attenuation to 10.
(14) Setup digitizing oscilloscope to measure period.
(15) Verify that the digitizing oscilloscope indicates within the limits listed in table 9
for the Per setting.
(16) Set TI to the next Per listed in table 9.
(17) Repeat (14) and (15) above for the remaining Per settings listed in table 9.
Table 9. 9215 Period
Test instrument
Digitizing oscilloscope indications
DATA ENTRY
Per
Min
Max
20
nsec
19.7
nsec
20.3
nsec
100
nsec
99.3
nsec
100.7
nsec
sec
.9948 sec
1.005 sec
1
sec
sec
sec
10
9.95
10.05
sec
sec
sec
100
99.5
100.5
1
msec
.995 msec
1.005 msec
10
msec
9.95
msec
10.05 msec
100
msec
99.5
msec
100.5
msec
500
msec
497.5
msec
502.5
msec
(18) Press DISABLE pushbutton (9215 output module) to off (red light lit).
(19) Disconnect cable from TI 9215 module OUTPUT.
b. Adjustments. No adjustments can be made.
10. Risetime/Falltime
a. Performance Check
(1) Connect equipment as shown in figure 3.
(2) Reset digitizing oscilloscope and cal the gain.
(3) Press TI pushbuttons as listed in (a) through (h) below:
CHANNEL A.
(a)
Vhigh and enter 5 from data keyboard and press ENTER/Hz.
(b)
Vlow and enter 0 from the data keyboard and press ENTER/Hz.
(c)
Lead and enter 1 from data keyboard and press n/GHz.
(d)
