User's Manual
Table Of Contents
- Table of contents
- Important document information
- Terms and abbreviations
- Registered trademarks
- Product life cycle
- Measuring principle
- Input
- Output
- Electrical connection
- Performance characteristics
- Installation
- Environment
- Process
- Mechanical construction
- Operability
- Certificates and approvals
- Ordering information
- Accessories
- Supplementary documentation
Micropilot FMR20
Endress+Hauser V. 5, Rev. 3, 20-12-2016 17
Orientation
A
BD
D
A0028410
11 Tank installation position
• If possible install the sensor so that its lower edge projects into the vessel.
• Recommended distance A wall - nozzle outer edge: ~ 1/6 of the tank diameter D. However, the
device must not under any circumstances be mounted closer than 15 cm (5.91 in) to the tank wall.
• Do not mount the sensor in the center of the tank.
• Avoid measurements through the filling curtain.
• Avoid equipment such as limit switches, temperature sensors, baffles, heating coils etc.
• Several devices can be operated in a single tank without impacting on each other.
• No signals are analyzed within the Blocking distance (BD). It can therefore be used to suppress
interference signals (e.g. the effects of condensate) close to the antenna.
An automatic Blocking distance of at least 0.1 m (0.33 ft) is configured as factory setting.
However, this can be overwritten manually (0 m (0 ft) is also permitted).
Automatic calculation:
Blocking distance = Empty calibration - Full calibration - 0.2 m (0.656 ft).
Each time a new entry is made in the Empty calibration parameter orFull calibration parameter,
the Blocking distance parameter is recalculated automatically using this formula.
If the result of the calculation is a value <0.1 m (0.33 ft), the Blocking distance of0.1 m (0.33 ft)
continues to be used.