TB 9-6625-2313-40
k. The residual inductance and resistance readings should not exceed 350 nH and
20 mΩ respectively.
l. Press TRIM S/C pushbutton, (allow 10-15 seconds) then TRIGGER pushbutton to
initiate auto-trim. The display should read 0.0 nH (0.4 nH) and 0 Ω ( 30Ω).
m. Press soft key for Single trigger setting.
n. Press soft key (▼) until frequency display in step 9 d (1) is 1 kHz.
10. Capacitance
NOTE
It is important that trimming operations are made with Kelvin
leads arranged as they will be for measurement checks.
Measurements may be affected by movement of the leads. If an
out-of-tolerance condition exists, repeat the trimming operation
and the measurement check.
a. Performance Check
(1) Characterize and record each capacitance value listed in table 3 utilizing the
capacitance measuring system.
(2) Connect capacitance standard No. 1 to TI.
(3) Press soft keys C, G, PARALLEL and REP settings.
(4) The TI's capacitance indication will be within 0.05% of characterized value; if
not, perform b below.
Capacitance (f) (nominal)
0.0001
0.0005
0.0009
0.001
0.005
0.009
0.01
0.05
0.09
0.1
0.5
1.0
2.0 1
1. Use capacitance standard No. 2.
(5) Press soft key for Single trigger setting.
b. Adjustments. Repeat paragraphs 9 and 10 above being careful with movement of
Kelvin leads. Otherwise, no adjustments can be made.