ETS-Lindgren HI-1710 Microwave Measurement System (Archived) - Manual (Page 58)

HI n 1710 Manual Page — 53
APPENDIX C
OPTION -01 [ZERO RECEPTACLE]
The HI-1710-01 option includes internal circuitry and an
external zero receptacle which provides a shielded
location for the probe while externally zeroing the
instrument.
The -01 option includes the following:
Zero Receptacle P/N 490930
Shielded Cable (10') P/N 490931
To use, the cable is connected to the ZERO CHAMBER
INPUT located on the back of the HI-1710 (refer to Figure
3,Section 4.0) and to the connector on the side of the
Zero Receptacle. The receptacle can be located in any
convenient position for use by the operator.
Note: As with any RF survey instrument, the probe must
be in a zero field (RF free) location when zeroing the
instrument. For accurate measurements, the Zero
Receptacle will help shield the probe from stray RF fields.
The Zero Receptacle should be located in an area that is
relatively free of significant RF fields. The fields near the
Zero Receptacle should be checked periodically to assure
that no significant stray fields are present.
This option is most often used with the PEAK HOLD
mode of the HI-1710. With the instrument in PEAK
HOLD, the oven is scanned and the highest reading
displayed on the HI-1710 display. When the probe is
inserted into the Zero Receptacle, a switch is activated
and sensed by the HI-1710 circuitry. The meter is zeroed
and the RF reading sent to the RS-232 serial port for
Archived 4/2/10