TB 9-6625-154-40
7. Equipment Setup
a. Connect TI to mainframe CH 1 output and allow 20 minutes for TI to warm-up. TI
will remain connected to CH 1 mainframe throughout entire procedure.
b. Ensure the TI output is not connected to anything. Perform self test by pressing
MODE, softkey TEST softkey ALL. Ensure that mainframe and TI pass all self tests
before continuing. Press softkey EXIT when self test is completed, then MODE and softkey
MANUAL.
c. Calibration of this instrument should take place in a 23C 5 C environment.
8. Leveled Sine LF Gain Accuracy (Models 9530 and 9560 Only)
a. Performance Check
(1) Connect TI output to multimeter INPUT through 50 Ω feedthrough termination.
(2) Set multimeter to measure ACV (If using 3458A, SETACV to SYNC mode).
(3) Set TI as listed in (a) through (m) below:
(a)
(sine).
(b)
Softkey, / 1.0 (select 1.0).
(c)
Softkey, CHANNEL SELECT.
Softkey, LOAD 50 Ω.
(d)
(e)
Softkey, SIGNAL CH 1.
(f)
Softkey, EXIT.
(g)
(if necessary) to select AMPLITUDE.
(h)
Keypad Entry, 30.
(i)
Softkey, mV.
(j)
(if necessary) to select FREQUENCY.
(k)
Keypad Entry, 50.
(l)
Softkey, kHz.
(m)
OUTPUT, ON.
(4) Multimeter will indicate within the limits for the first value in table 3. If not,
perform b below.
(5) Repeat technique of (3) (g) through (i) and (4) above for remaining TI output
values in table 3.
Table 3. Leveled Sine LF Gain 50 kHz Absolute Accuracy.
TI
Multimeter (V rms)
Freq
Output (V)
Min
Measured
Max
(kHz)
30.000 m
50
10.4475 m
10.7657 m
1
100.00 m
50
34.8250 m
35.8856 m
2
300.00 m
50
104.475 m
107.657 m
3
1.0000
50
0.34825
0.35885
3.0000
50
1.04475
1.07657
Record multimeter indication as 100 mV, 50 kHz reference for use in table 4.
1
Record multimeter indication as 300 mV, 50 kHz reference for use in table 4.
2
3 Record multimeter indication as 1 V, 50 kHz reference for use in table 4.
(6) Repeat technique of (3) (g) through (l) to set TI output voltage and frequency to
the first values in table 4.