Glossary - Honeywell RM640 Handbook

RM640
Item
Orientation system (max. tilt 30°) with 316L low-pressure flange disc (atmospheric pressure) for
1½ NPT process connection on level transmitter
4 Disc with holes, drilled according to DN80 PN2.5...PN40 / 3¨ 150 lb
Disc with holes, drilled according to DN100 PN2.5...PN40 / 4¨ 150 lb
Disc with holes, drilled according to DN150 PN2.5...PN40 / 6¨ 150 lb
Disc with holes, drilled according to DN200 PN2.5...PN40 / 8¨ 150 lb
Other accessories for process connections
316L wall-mounted bracket for G 1½ process connection on level
5
transmitter
2
6 316L hanging, orientable bracket (max. tilt 45°)
1 Make sure that the slanted flange is made of the same material as the Drop antenna
2 For more data, refer to the "Technical data: Dimensions and weights" section in this document

10.5 Glossary

D
Dielectric constant Dielectric constant
Dielectric constant Dielectric constant
Direct Plus Direct Plus
Direct Plus Direct Plus
Distance Distance Distance Distance
Drop antenna Drop antenna Drop antenna Drop antenna
DTM DTM DTM DTM
E
Electromagnetic compatibility Electromagnetic compatibility Electromagnetic compatibility Electromagnetic compatibility
(EMC) (EMC) (EMC) (EMC)
F
FMCW FMCW
FMCW FMCW
34-VF-25-131 iss.1 GLO Feb 2019 US
Description
An electrical property of the product to be measured used in radar
measurement. Also known as εr, DK and relative permittivity. Defines the
strength of the wave reflected back to the device's signal converter.
Direct Plus mode is an alternative measurement mode. If it is possible
there will be an interference signal in the measurement zone that is larger
than the level signal, select "Direct Plus" mode. If you select "Direct Plus"
mode, the device locks on the level signal and monitors changes in level. If
the device then finds larger reflections in the silo, it will only monitor the
largest signal in a small search zone around the first reflection found and
ignore all other reflections. The interference signal must not be near to the
level signal.
The distance from the face of flange to the level (1 product) or the surface
of the top product (2 or more products). See the diagrams at the end of this
section.
A new generation of antenna made of PP or PTFE. It has an ellipsoidal
shape for a more precise emission of radar signals.
Device Type Manager. A driver for use in the PACTware™ program. All data
and functions of the device are included in it.
Defines how much a device influences or is influenced by other devices that
generate electromagnetic fields during operation. Refer to European
standard EN 61326-1 for further details.
Frequency-modulated continuous-wave radar technology. The signal is
continuously present, but the frequency is modulated, usually in
successive linear ramps over time (frequency sweeps).
www.honeywellprocess.com
APPENDIX
Quantity Part reference
1 XF70000N61
XF70000N62
XF70000N63
XF70000N64
1 XF70000059
1 XF70000067
10
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