Specs at a glance
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Accuracy
+/- 3 mm or +/- 0,2 % of set measuring range
-
Process temperature
-20 °C ... 60 °C
(- 4°F ... 140 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar ... 3 bar abs
(10 psi ... 44 psi) -
Max. measurement distance
Max. measurement distance
-
Main wetted parts
PP/EPDM
Field of application
The range of applications extends from monitoring levels in sewage treatment plants and process water tanks to applications for loading, storage and buffer tanks. FMU30 ultrasonic sensor offers proven software algorithms and all warning and alarm messages are shown on the four-line plain text display and guarantee fast remedy of problems. The envelope curve can also be shown on the display. As the analysis results are displayed directly on-site, this ensures quick and accurate error diagnostics.
Two-wire instrument for continuous non-contact level and flow measurement.
Process connection: Thread
Temperature: -20 to +60°C (-4 to +140°F)
Pressure: +0.7 to +3bar (+10 to +44psi)
Maximum measuring distance:
Sensor 1½" for liquids 5m (16ft) and for bulk solids 2m (6.6ft),
Sensor 2" for liquids 8m (26ft)and for bulk solids 3.5m (11ft)Blocking distance:
Sensor 1½" 0.25m (0.8ft),
Sensor 2" 0.35m (1.15ft)International explosion protection certificates
Benefits
Quick and simple commissioning via menu-guided onsite operation with four-line plain text display, 7 languages selectable
Envelope curves on the on-site display for simple diagnosis
Linearization function (up to 32 points) for conversion of the measured value into any unit of length, volume or flow rate
Non-contact measurement method minimizes service requirements
Installation possible from thread G 1½ or 1½ NPT upwards
Integrated temperature sensor for automatic correction of the temperature dependent sound velocity
Videos
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Time-of-Flight measuring principle
Fundamental selection
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Simple products
- Easy to select, install and operate
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
-
Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
|
Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Predecessor
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Measuring principle
Ultrasonic
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Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2-wire
-
Accuracy
+/- 3 mm or +/- 0,2 % of set measuring range
-
Ambient temperature
-20 °C ... 60 °C
(-4 °F ... 140 °F) -
Process temperature
-20 °C ... 60 °C
(- 4°F ... 140 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar ... 3 bar abs
(10 psi ... 44 psi) -
Main wetted parts
PP/EPDM
-
Process connection
G / NPT 1 1/2"
G / NPT 2" -
Blocking distance
1 1/2": 0.25 m (0.8 ft)
2":0.35 m (1.15 ft) -
Application
Application
-
Max. measurement distance
Max. measurement distance
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Communication
4...20 mA
-
Certificates / Approvals
ATEX, CSA C/US, IEC Ex, NEPSI
-
Options
Accessory Enclosed:
UNI flange 2" ... 4" -
Application limits
Application limits
-
Measuring principle
Ultrasonic Limit
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2-wire
-
Ambient temperature
-20 °C...+60 °C,
(-4 °F...+140 °F) -
Process temperature
-20 °C...+60 °C,
(-4 °F...+140 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar...3 bar abs,
(10 psi ...44 psi) -
Main wetted parts
PP/ EPDM
-
Process connection
G / NPT 1 1/2",
G / NPT 2" -
Blocking distance
Sensor 1 1/2": 0.25 m,
Sensor 2": 0.35 m -
Communication
4...20 mA
-
Certificates / Approvals
ATEX, CSA C/US, IEC Ex, NEPSI
-
Options
Accessory Enclosed:
UNI flange 2"...4" -
Application limits
Take notice of range diagramm
-
Measuring principle
Ultrasonic
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2-wire
-
Accuracy
+/- 3 mm or +/- 0.2 % of set measuring range
-
Ambient temperature
-20 °C ... 60 °C
(-4 °F ... 140 °F) -
Process temperature
-20 °C ... 60 °C
(-4 °F ... 140 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar ... 3 bar abs
(10 psi ... 44 psi) -
Main wetted parts
PP/EPDM
-
Process connection
G / NPT 1 1/2"
G / NPT 2" -
Blocking distance
Sensor 1 1/2": 0.25 m
Sensor 2": 0.35 m -
Max. measurement distance
Sensor 1-1/2": 2 m (6.6 ft)
Sensor 2": 3.5 m (11 ft) -
Communication
4...20 mA
-
Certificates / Approvals
ATEX, CSA C/US, IEC Ex, NEPSI
-
Options
Accessory Enclosed:
UNI flange 2" ... 4" -
Application limits
Take notice of range diagram
-
Measuring principle
Ultrasonic Limit
-
Characteristic / Application
Compact ultrasonic transmitter
-
Supply / Communication
2-wire
-
Ambient temperature
-20 °C...+60 °C
(-4 °F...+140 °F) -
Process temperature
-20 °C...+60 °C
(-4 °F...+140 °F) -
Process pressure absolute / max. overpressure limit
0.7 bar...3 bar abs
(10 psi ...44 psi) -
Main wetted parts
PP/EPDM
-
Process connection
G / NPT 1 1/2"
G / NPT 2" -
Blocking distance
Sensor 1 1/2": 0.25 m,
Sensor 2": 0.35 m -
Communication
4...20 mA
-
Certificates / Approvals
ATEX, CSA C/US, IEC Ex, NEPSI
-
Options
Accessory Enclosed:
UNI flange 2"... 4" -
Application limits
Take notice of range diagram
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