Agilent Technologies 16451B, Operation Manual

Page: 80 / 149

F or Electrode-C and Electrode-D (Electrode for Thin Film
Electrodes)
When you use Electrode-C (electrode for large thin lm electrodes)
and Electrode-D (electrode for small thin lm electrodes), the residual
impedance contained in the 16451B can be reduced by performing the
following SHORT correction procedure
1. Turn the small knob ccw to move the Guarded/Guard electrode
away from the Unguarded electrode , then remove the cover from
both electrodes .
2. Turn the small knob cw to contact the Guarded electrode to the
Unguarded electrode as shown in Figure 3-24. The Guard electrode
is spring-loaded and is designed to contact earlier than the Guard
electrode . But do not turn the knob until the Guard electrode
contacts with the Unguarded electrode .
Figure 3-24. SHORT Correction for Thin Film Electrodes
Note
When the Guard electrode contacts to the Unguarded electrode
before the Guarded electrode contacts to the Unguarded electrode ,
the electrodes deviates from the parallel position. P erform a rough
adjustment to make the electrodes parallel as described in the next
section \Electrode A djustment".
3. P erform the SHORT correction measurement. (The procedure
to perform the SHORT correction depends on the measurement
instrument, for the details of this procedure , refer to Appendix C.)
4. After the measurement, turn the small knob ccw to move the
electrodes away from each other
3-34 Operation