FMU90 Ultrasonic level measurement

Product Item : FMU90-R11CA111AA3A
Category： Level
Measuring Principle:Ultrasonic
Characteristic / Application:Separated version with Field housing or top hat rail housing for control cabinet instrumentation, up to 6 relays for pump / rake / limit control, 1 or 2 channel version
Accuracy:+/- 2mm + 0.17% of measured distance
Communication:up to 2x 4 ... 20 mA HART Profibus DP
INQUIRY EMAIL

Ultrasonic measurement Time-of-Flight Prosonic FMU90

Transmitter in housing for field or top hat rail mounting for up to 2 sensors FDU90/91/92/93/95

Prosonic FMU90 separated version with field housing or top hat rail housing for control cabinet instrumentation are suited for continuous, non-contact level measurement of fluids, pastes, sludge and powdery to coarse bulk solids. Also the flow measurement in open channels and weirs is possible as the simultaneous measurement of level and flow in a storm water overflow basin with only 1 sensor. Up to 6 relays for tendency alarm, flow pulse output or backwater/sludge alarm, 1 or 2 channel version.

Benefits

Simple, menu-guided operation with 6-line plain text display, 15 languages selectable
Envelope curves on the display for quick and simple diagnosis
Easy operation, diagnosis and measuring point documentation with the supplied "FieldCare" operating program
Time-of-Flight correction via integrated or external temperature sensors
Linearisation (up to 32 points, freely configurable) for the most common flumes and weirs
pre-programmed and selectable
Online calculation of the flume-/weir-flows via integrated flow curves
Automatic detection of the sensors FDU9x

Field of application

Level measurement of fluids and bulk materials with 1 or 2 sensors for measuring of up to 45m (148ft) and level limit detection. Pump control, rake control and as option: additional pump control function.

Calculations: Average, difference, sum
Application flow: Flow measurement in open channels and weirs with 1 or 2 sensors
Flow measurement with back water or sludge detection
Up to 3 totalizers and 3 counters
Counting or time pulse output for control of external units

Features and specifications

Continuous / Liquids

Measuring Principle	Ultrasonic
Characteristic / Application	Separated version with Field housing or top hat rail housing for control cabinet instrumentation, up to 6 relays for pump / rake / limit control, 1 or 2 channel version
Supply / Communication	90 ... 253 VAC 10.5 ... 32 VDC up to 2x 4...20mA HART Profibus DP
Accuracy	+/- 2mm + 0.17% of measured distance
Ambient temperature	-40 °C ... 60 °C (-40 °F ... 140 °F)
Communication	up to 2x 4 ... 20 mA HART Profibus DP
Certificates / Approvals	FMU allowed to operate FDU9x in Ex-Zone CSA GP (tested according UL)
Components	Sensors FDU9x

Continuous / Solids

Measuring Principle	Ultrasonic
Characteristic / Application	Separated version with Field housing or top hat rail housing for control cabinet instrumentation, up to 6 relays for limit control, 1 or 2 channel version
Supply / Communication	90 ... 253 VAC 10.5 ... 32 VDC up to 2x 4...20mA HART Profibus DP
Accuracy	+/- 2mm + 0.17% of measured distance
Ambient temperature	-40 °C ... 60 °C (-4 °F ... 140 °F)
Communication	up to 2x 4 ... 20 mA HART Profibus DP
Certificates / Approvals	FMU allowed to operate FDU9x in Ex-Zone ATEX: FMU for field housing CSA GP (tested accordung UL)
Components	Sensors FDU9x

Liquids

Measuring Principle	Ultrasonic
Product headline	Separated version with field housing or top hat rail housing for control cabinet instrumentation, up to 6 relays for tendency alarm, flow pulse output or backwater / sludge alarm, 1 or 2 channel version
Sensor features	pre-programed flow curves for typical open channel measurement
Degree of protection	IP66 (Fieldhousing) IP20 (top hat rail housing)
Display/Operation	Illuminated display, 6 line graphic display with country specific menu guidance, on-site diagnosis with envelope curve on display
Outputs	4...20mA HART Optional: second 4...20 mA output (e.g. for 2 times flow measurement 1 relay (standard) Optional: 3 or 6 relays
Inputs	up to 2 FDU9x sensors
Digital communication	HART Profibus DP
Hazardous area approvals	FMU allowed to operate FDU9x in Ex-zone