79
Safety Manual
00809-0200-5100, Rev GB
Cone Pipe Antenna
February 2017
Cone Pipe Antenna
Appendix F Cone Pipe Antenna
Tab le F- 1 provides recommended settings of Calibration Distance and Pipe Diameter for Cone Pipe
Antennas. Due to minor imperfections of the actual pipes, these figures may need to be slightly
adjusted in order to minimize deviations between actual and measured SIL Surface Distance.
Table F-1. Antenna and pipe configuration
Please note that for small pipes it is important to set correct pipe diameter to avoid scale factor
deviations. For pipe diameters of 1 inch and 2 inch, a diameter error of one millimeter may
typically result in a level measurement error of up to 15 mm for a pipe length of 3 meters.
Antenna Calibration Distance
Nominal Pipe
Diameter
Cone Pipe 1” - 15 mm 30 mm
Cone Pipe 2” - 5 mm 56 mm
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