TB 9-6625-2313-40
(2) 1.00 V ac.
(3) 0.0 V dc.
(4) Bias Off.
(5) C.
(6) G.
(7) PARALLEL.
(8) Auto.
(9) REP.
(10) SLOW.
e. From the keypad press CODE, 9, then ENTER keys. The upper left of crt display
should read *8.
f. Place the Kelvin leads in a position that will approximate the measurement position.
Connect leads as illustrated in figure 1 for TRIM O/C. Ensure that the clips are separated
by at least 5 cm (approximately 2.5 inches).
NOTE
Leads may also be clipped to a piece of bare wire.
Figure 1. Trim O/C and S/C.
g. The residual capacitance reading should not exceed 8.8 pF, with parallel
conductance reading not exceeding 10 ns.
h. Press TRIM O/C pushbutton, (allow 10-15 seconds) then press TRIGGER
pushbutton to initiate auto-trim process. The display should read 0.0 fF (2.0 fF) and
0.0 nS (0.04 ns).
i. Connect leads as illustrated in figure 1 for TRIM S/C, ensuring that the lead clips
are not touching each other. The TI should autorange to range *1 and the drive level
should change to 100 mA.
j.
Press soft keys for L, R, and SERIES settings.
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