TB 9-6625-1976-35
(6) VOLTAGE ERROR-% switch to OFF.
(7) VERNIER control to 0 (zero).
d. Allow 1 hour for equipment to warm-up and stabilize.
a. Performance Check
(1) Connect frequency counter to COUNTER OUTPUT (rear of TI).
(2) Set VOLTAGE RANGE switch to 10 V and VOLTAGE dials to 10.00000.
(3) Set FREQUENCY RANGE-Hz switch to 100, FREQUENCY dials to 50.00 Hz,
and MODE switch to OPER.
(4) If frequency counter does not indicate between 19.7628 and 20.2429 ms, perform
b below.
(5) Repeat technique of (2) through (4) above for each frequency listed in table 3.
(6) Set MODE switch to STDBY.
Test instrument
Frequency counter indications
FREQUENCY
FREQUENCY
RANGE-HZ
dials
switch settings
(Hz)
Max
Min
100
100.00
9.8912 ms
10.1112
ms
1K
.5000 K
1.9763 ms
2.0243
ms
1K
1.0000 K
0.9891 ms
1.0111
ms
10 K
5.000
K
4.940
kHz
5.060
kHz
10 K
10.000
K
9.890
kHz
10.110
kHz
100 K
50.00
K
49.400
kHz
50.600
kHz
100 K
100.00
K
98.900
kHz
101.100
kHz
1M
.5000 M
482.000
kHz
518.000
kHz
1M
1.0000 M
967.000
kHz
1.033000
MHz
b. Adjustments
(1) Connect true rms voltmeter to QUADRATURE OUT (rear of TI).
(2) Set true rms voltmeter FUNCTION pushbutton to FILT OUT.
(3) Connect frequency counter to COUNTER OUT (rear of TI).