TB 9-4910-555-35
(4) Wait for offset values to appear on display. Offset values will be between -225
and +225.
(5) Place shorting plugs in 100 A position on dc current shunt.
(6) Adjust dc power supply No. 2 for a 25 mV indication on multimeter (25 A output).
(7) Press and release TEST pushbutton. If a (negative) output occurs, reverse the
current probe. If TI does not display between 435 and 565, perform b below.
NOTE
The current probe cannot be opened while the loop is energized
due to the induced magnetic field.
(8) Repeat technique of (6) and (7) above for values and indications shown in table 4. If
TI does not indicate within the limits specified, perform b below.
Table 4. Dc Current
Test instrument
indications
display
(mV)
Min
Max
50
900
1100
55
990.8
1209.2
60
1081.2
1318.8
65
1171.2
1428.8
70
1260.8
1539.2
75
1350
1650
b. Adjustments
(1) Peel back decal on topside 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.
11. Frequency
a. Performance Check
(1) Connect function/arbitrary generator to TI J4 using cable W2.
(2) Adjust function/arbitrary generator for 500 Hz, and for a 6 to 10 V p-p square
wave (DC OFFSET to OFF).
(3) Set TEST SELECT switches to 96.
(4) Press and release TEST pushbutton.
(5) TI will indicate between 461.8 and 538.3 Hz.
b. Adjustments. No adjustments can be made.
