TB 9-6625-2304-24
9. Ac Voltage and Frequency
a. Performance Check
(1) Configure multimeter for most accurate ac voltage measurements.
(2) Connect multimeter INPUT HI to TI TP7 and LO to TP9. Multimeter will
indicate between 9.9940 and 10.0060 V ac; if not, perform b (l) below.
(3) Move multimeter INPUT HI test lead to TI TP8.
Multimeter will indicate
between 0.99940 and 1.00060 V ac; if not, perform b (2) below.
(4) Press multimeter FREQ pushbutton.
(5) Multimeter will indicate between 19.8 and 20.2 kHz.
(6) Reduce calibrator and dc power supply outputs to minimum.
b. Adjustments
(1) Adjust 10 V ac adjustment (fig. 2) for a 10.0000 V (1.0 mV) indication on
multimeter (R).
(2) Adjust 1 V ac adjustment (fig. 2) for a 1.00000 V (0.1 mV) indication on
multimeter (R).
to 1.0 M )
10. Resistance (100
a. Performance Check
(1) Disconnect all equipment from TI.
(2) Configure multimeter for 2 wire resistance measurements.
(3) Connect multimeter INPUT HI and LO terminals to TI as specified in table 4.
At each test point, set multimeter to appropriate manual range. Multimeter will indicate
within the limits listed.
b. Adjustments. No adjustments can be made.
Table 4. Resistance
Connection to test instrument
Range
Multimeter indications
HI
LO
Min
Max
T
TP6
TP19
1.0
M
0.99990 M
1.00010
M
TP5
TP18
100
k
99.990
k
100.010
k
TP4
TP17
10
k
9.9990
k
10.0010
k
TP3
TP16
1.0
k
0.99950 k
1.00050
k
6
P2
TP15
100
99.50
100.50