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 9
Output
Output signal 4 to 20 mA
An 4 to 20 mA interface is used for measured value output and to power to the device.
Digital output HART®
• Signal encoding; FSK ±0.5 mA over current signal
• Data transmission rate;1 200 Bit/s
Bluetooth® wireless technology (available as an optional extra)
The device has a Bluetooth® wireless technology interface and can be operated and configured via
this interface using the SmartBlue app.
• The range under reference conditions is 25 m (82 ft)
• Incorrect operation by unauthorized persons is prevented by means of encrypted communication
and password encryption.
• The Bluetooth® wireless technology interface can be deactivated.
Signal on alarm
Depending on the interface, failure information is displayed as follows:
• Current output
Alarm current: 22.5 mA (as per NAMUR RecommendationNE 43)
• Operating tool via digital communication (HART) or SmartBlue (app)
– Status signal (as per NAMUR Recommendation NE 107)
– Plain text display with remedial action
Linearization
The linearization function of the device allows the conversion of the measured value into any unit of
length, weight, flow or volume. When operating using DeviceCare and FieldCare, linearization tables
for volume calculation in vessels are preprogrammed (see following list).
Pre-programmed linearization curves
• Cylindrical tank
• Spherical tank
• Tank with pyramid bottom
• Tank with conical bottom
• Tank with flat bottom
Other linearization tables of up to 32 value pairs can be entered manually.
Protocol-specific data
HART
Manufacturer ID 17 (0x11)
Device type ID 44 (0x112c)
HART specification 7.0
Device description files (DTM, DD) Information and files under:
• www.endress.com
• www.hartcomm.org
HART load Min. 250 Ω
HART device variables Assignment of HART device variables is fixed and cannot be changed.
Measured values for PV (primary variable)
Level linearized
Advanced diag. measured values for SV (secondary variable)
Distance
Advanced diag. measured values for TV (tertiary variable)
Relative echo amplitude
Advanced diag. measured values for QV (quarternary variable)
Temperature
Supported functions Additional transmitter status
Multidrop current 4 mA
Time for connection setup < 1 s