TB 9-6625-2252-35
Table 3. TVM Accuracy
Test instrument settings
Calibrator settings and indications
MODE
RANGE
Min
Max
DC+
10
+ and - dc
9.7 V
10.3
V
DC+
100
+ and - dc
97
V
103
V
DC+
1000
+ and - dc
970
V
1030
V
AC
1
1 kHz
0.97 V
1.03
V
AC
10
1 kHz
9.7 V
10.3
V
AC
100
1 kHz
97
V
103
V
AC
1000
1 kHz
970
V
1030
V
until TI indicates +1 (R).
a. Performance Check
(1) Position controls as listed in (a) through (d) below:
(a) NULL SENS switch to TVM.
(b) MODE switch to DC+.
(c) RANGE switch to 10.
(d) Decade dials to 10.000.
(2) Set calibrator for a 10 V dc output.
(3) Set NULL SENS switch to each successively more sensitive position while
adjusting calibrator output until null is obtained on most sensitive position. If calibrator
does not indicate between 9.995 and 10.005 V dc, perform b (l) below.
(4) Repeat technique of (1) through (3) above using settings listed in table 4. If
calibrator does not indicate within limits specified, perform appropriate adjustment
as listed.
