TB 9-4920-456-24
(19) Set DC/AC S5 on calibration test fixture to DC.
NOTE
Calibration test fixture TEST S4 switch must be in OFF
position before changing position of LOAD SELECT S3 switch.
(20) Set calibration test fixture LOAD SELECT S3 switch to 2.
(21) Hold TEST S4 switch to LOAD position on calibration test fixture and adjust TI
DCV ADJ control for a TI display indication of 18.0 V dc.
(23) Press TI DC A key on METER SELECT keyboard.
(24) Hold TEST S4 switch to LOAD position on calibration test fixture. Multimeter
will indicate within 2% plus 0.1 A of TI dc current display.
NOTE
Multimeter (dc mode) indications MUST be multiplied by 10 to
obtain equivalent current in amperes.
(25) Release TEST S4 switch on calibration test fixture.
(26) Repeat technique of (20) through (25) above for TI DCV ADJ and
LOAD SELECT S3 switch values listed in table 3.
Table 3. Dc Current Measurement.
Test instrument
display indications
Calibration test fixture
(dc voltage)
LOAD SELECT S3
switch positions1
DCV ADJ
(V dc)
18.0
3
18.0
4
35.0
5
35.0
6
35.0
7
28.0
8
28.0
9
28.0
10
28.0
11
Calibration test fixture TEST S4 switch must be in OFF
1
position before changing LOAD SELECT S3 switch position.
(27) Set LOAD SELECT S3 and DC/AC S5 switches on calibration test fixture
to OFF.
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