TB 9-4910-556-35
(12) Adjust dc power supply No. 2 for 25 mV indication on digital multimeter (25 A
output).
(13) Press and release TEST pushbutton. If a - (negative) output occurs, reverse the
current probe. VTM should display between 458 and 543. Record indication.
NOTE
The current probe cannot be opened while the loop is energized
due to the induced magnetic field.
(14) Repeat technique of (12) and (13) above for current values and indications shown
in table 4. Record indications. If all indications recorded are not within the limits
specified, perform b below.
Digital
VTM
indications
display indications
(mV)
Min
Max
50
923
1078
55
1013
1187
60
1104
1296
65
1195
1406
70
1283
1517
75
1373
1628
b. Adjustments
(1) Peel back decal on top side of probe to expose adjustment access hole.
(2) Adjust full-scale and span adjustments as necessary. Full-scale adjustment is
closest to input connector end of current probe.
a. Performance Check