TB 9-6625-2135-24
Table 6. Dc Current
Test instrument
Test instrument indications
Calibrator output
pushbuttons
Min
Max
A
A
A
200
190
189.86
190.14
2m
1.9
mA
1.8986 mA
1.9014 mA
20 m
19
mA
18.978 mA
19.022
mA
200 m
190
mA
188.85
mA
191.5
mA
2000 m
1.9
A
1888.5
mA
1911.5
mA
b. Adjustments. No adjustments can be made.
12. Power Supply
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
a. Press TI
V and 2 pushbuttons.
and COM.
b. Connect calibrator OUTPUT HI and LO to TI V
c. Set calibrator for a 1 V dc output. If TI does not indicate 1.0000, adjust R89 (fig. 1)
for a 1.0000 TI indication (R).
13. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA Label/Form in accordance with TB 750-25.
CALIBRATION PROCESS FOR HEWLETT-PACKARD, MODEL 3466A
14. Preliminary Instructions
a. The instructions outlined in paragraphs 14 and 15 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the results of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.