TB 9-6625-2271-50
(3) If ac measurement standard indication is not between 2.97 and 3.03 mV ac,
perform b below.
(4) Repeat technique of (2) (b) through (g) and (3) above using TI SOURCE settings
and ac measurement standard indications listed in table 10.
Test instrument
Ac measurement standard indications
SOURCE settings
LEVEL
FREQ
Min
Max
3
mV
90
kHz
2.955
mV
3.045
mV
3
mV
120
kHz
2.925
mV
3.075
mV
30
mV
1
kHz
29.835
mV
30.165
mV
30
mV
90
kHz
29.685
mV
30.315
mV
30
mV
120
kHz
29.52
mV
30.48
mV
300
mV
1
kHz
298.35
mV
301.65
mV
300
mV
90
kHz
296.85
mV
303.15
mV
300
mV
120
kHz
295.2
mV
304.8
mV
3
V
1
kHz
2.9835
V
3.0165
V
3
V
90
kHz
2.9685
V
3.0315
V
3
V
120
kHz
2.952
V
3.048
V
16
V
1
kHz
15.912
V
16.088
V
16
V
90
kHz
15.832
V
16.168
V
16
V
120
kHz
15.744
V
16.256
V
(5) Press keys and enter values using DATA ENTRY keys as listed in (a) through
(g) below:
(a)
LCL INIT.
(b)
SOURCE LEVEL.
(c)
3 mV.
(d)
SOURCE FREQ.
(e)
1 kHz.
(f)
SPCL.
(g)
75 ENTER.
(6) Record the ac measurement standard indication as reference.
(7) Press TI SOURCE FREQ key and enter 20 Hz using DATA ENTRY keys. The
ac measurement standard indication will be within 0.5 percent of reference recorded in (6)
above.
CHANGE 2 17
