2.1.4
Probe end peak
It is caused by reflection from the probe end. If the probe is grounded, the peak will be
positive. If the probe end is submerged in a high dielectric media, such as water, it will not
be visible.
2.1.5
Upper Reference Point
The Upper Reference Point is located at the underside of the threaded adapter,
transmitter flange, or Tri-Clamp
®
, as illustrated in
Figure 2-3: Upper Reference Point
$
(
)
%
&
'
A. NPT
B. BSPP (G)
C. Flange
D. Tri-Clamp
E. Upper Reference Point
F. Total Probe Length
2.1.6
Zero reference point
The Zero Reference Point is selected by the user and is usually located close to or at the
bottom of the tank. The Zero Reference Point can be set to any position in the tank by
adjusting the Tank Height.
2.1.7
Tank height
The Tank Height is the distance from the Upper Reference Point to the Zero Reference
Point. The transmitter measures the distance to the product surface and subtracts this
value from the Tank Height to determine the level.
Reference Manual
Transmitter overview
00809-0100-4308
February 2020
Reference Manual
13
Содержание Rosemount 3308A
Страница 8: ...Contents Reference Manual February 2020 00809 0100 4308 viii Rosemount 3308 Series ...
Страница 10: ...Introduction Reference Manual February 2020 00809 0100 4308 10 Rosemount 3308 Series ...
Страница 22: ...Transmitter overview Reference Manual February 2020 00809 0100 4308 22 Rosemount 3308 Series ...
Страница 74: ...Installation Reference Manual February 2020 00809 0100 4308 74 Rosemount 3308 Series ...
Страница 96: ...Configuration Reference Manual February 2020 00809 0100 4308 96 Rosemount 3308 Series ...
Страница 194: ...Product Certifications Reference Manual February 2020 00809 0100 4308 194 Rosemount 3308 Series ...
Страница 222: ...Configuration parameters Reference Manual February 2020 00809 0100 4308 222 Rosemount 3308 Series ...