TB 9-6625-2253-24
1000
DC
CAL
AC
R6
CAL
R4
SHIELD
HF
CAL
C1
F2
Figure 1. Adjustment locations.
9. Dc Current
a. Performance Check
(1) Connect calibrator to TI mA and COMMON terminals.
(2) Set TI to measure DC mA and press the 2 mA range pushbuttons.
(3) Set calibrator for a 1.9 mA output. TI will indicate within limits specified in
first row of table 4.
(4) Repeat technique of (2) and (3) above, using settings and indications listed in
Table 4. Dc Current Accuracy
Calibrator
Test instrument
output
Range setting
Indication limits (mA)
(mA)
(mA)
Min
Max
1.9
2
1.885
1.915
19
20
18.85
19.15
190
200
188.5
191.5
1900
2000
1885
1915
(5) Set calibrator output to minimum and disconnect equipment setup.
b. Adjustments. No adjustments can be made.