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Accuracy over measuring range
The measuring range is limited by the blind zone at the very top of the tank. In the blind
zone, the accuracy exceeds ±0.20 in. (±5 mm) and measurements may not be possible.
Measurements close to the blind zone will have reduced accuracy (see
For the extended cone antennas, the reduced accuracy zone ends 11.8 in. (30 cm) below
the antenna end.
The accuracy in still pipe/chamber installations depends on how well the antenna size
matches the pipe size. For more details, refer to the Best Practices for Using Radar in Still
Pipes and Chambers
Figure A-1: Accuracy Over Measuring Range
±0.08 in.
(2 mm)
7.9 in.
(20 cm)
19.7 in.
(50 cm)
±0.20 in.
(5 mm)
A
B
C
A. Device Reference Point
B. Accuracy
C. Distance
A.1.3
Environment
Vibration resistance
•
2 g at 10-180 Hz according to IEC 61298-3, level “field with general application”
•
IACS UR E10 test 7
For compliance with these standards, the transmitter housing must be fully engaged into
the sensor module. This is achieved by rotating the transmitter housing clockwise to
thread limit.
Reference Manual
Specifications and reference data
00809-0100-4408
February 2020
Rosemount 5408 and 5408:SIS Level Transmitters
165
Содержание Rosemount 5408
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Страница 72: ...Mechanical installation Reference Manual February 2020 00809 0100 4408 72 Reference Manual ...
Страница 100: ...Operation Reference Manual February 2020 00809 0100 4408 100 Reference Manual ...
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