Product Info
Table Of Contents
- Table of contents
- Wichtige Hinweise zum Dokument
- Function and system design
- Input
- Output
- Power supply
- Performance characteristics
- Installation
- Environment
- Process
- Mechanical construction
- Operability
- Certificates an approvals
- CE mark
- RoHS
- RCM-Tick marking
- Ex approval
- Dual seal according to ANSI/ISA 12.27.01
- Functional safety
- WHG
- Sanitary compatibility
- NACE MR 0175 / ISO 15156
- NACE MR 0103
- Pressure equipment with allowable pressure ≤ 200 bar (2
- Marine certificate
- Radio standard EN302729
- Radio standard EN 302372
- FCC
- Industry Canada
- Japanese radio approval
- CRN approval
- Track record
- Test, Certificate
- Hard-copy product documentation
- Other standards and guidelines
- Ordering information
- Application Packages
- Accessories
- Documentation
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Micropilot FMR51, FMR52
Endress+Hauser V. 10, Rev. 3, 1-10-2019 41
Optimization options
• Antenna size
The bigger the antenna, the smaller the beam angle α and the fewer interference echoes
→ 41.
• Mapping
The measurement can be optimized by means of electronic suppression of interference echoes.
• Antenna alignment
Take into account the marker on the flange or threaded connection .
• Stilling well
A stilling well can be applied to avoid interferences → 48.
• Metallic screens mounted at a slope
They spread the radar signals and can, therefore, reduce interference echoes.
Beam angle
A0016891
18 Relationship between beam angle α, distance D and beamwidth diameter W
The beam angle is defined as the angle α where the energy density of the radar waves reaches half
the value of the maximum energy density (3-dB-width). Microwaves are also emitted outside the
signal beam and can be reflected off interfering installations.