ETS-Lindgren HI-2790B Calibration Comparison System - Manual (Page 20)

20 Operation www.ets-lindgren.com
4.1.10 Check the system field level at 1 mW/cm 2 by placing the
HI-1710 LCR probe in the chamber and aligning the probe at its
midpoint reading.
4.1.11 Remove the HI-1710 LCR probe and place it in its holder on top of
the system.
4.1.12 This ends the setup procedure for the HI-2790B system. The
information logged in step 4.1.9 on page 19 must be reviewed to
make sure that the HI-2790B system remains stable. No value of
the DIF or the RF Power reading may be lower than 10% less than
the highest reading observed over a 12-month period between
annual calibrations of the HI-1710 LCR. If a reading falls below
these limits, carefully review and repeat the setup procedure. If it is
still outside the limits, check the rest of the data for indications of
the problem area. The HI-1710 LCR bias, ellipticity, and the
ambient temperature readings should also remain within specified
limits.