Transmitter in housing for field or top-hat rail mounting for the ultrasonic sensors FDU91/91F/92/93/95/96

Your 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.

• Option: four digital inputs (e.g. for pump feedback) and one external temperature input

• Time-of-flight correction via integrated or external temperature sensors

• Linearisation (up to 32 points, freely configurable)

• Linearisation tables for the most common flumes and weirs pre-programmed and selectable

• Online calculation of the flume-/weir-flows via integrated flow curves

• Pre-programmed pump control routines

• System integration via HART or PROFIBUS DP

• Automatic detection of the sensors FDU9x

• The sensors of the series FDU8x can be connected

FMU90 - Field housing - (see picture)

• Ambient temperature:-40...60 °C / -40...140 °F
• Ingress protection:IP66 / NEMA 4x
• Number of sensors: up to 2 sensors

FMU90 - DIN rail housing - (no picture)

• Ambient temperature:-40...60 °C / -40...140 °F
• Ingress protection:IP20
• Number of sensors: up to 2 sensors

Application for level measurements

• Continuous, non-contact level measurement of fluids, pastes, sludge and powdery to coarse bulk materials with 1 or 2 ultrasonic sensors

• Measuring range up to 70 m (depending on sensor and material measured)

• Level limit detection (up to 6 relays)

• Pump control (alternating); rake control

• Option: additional pump control functions (pump function test, ...)

• Calculations: average, difference, sum

Application for flow measurements

• Flow measurement in open channels and measuring weirs with 1 or 2 ultrasonic sensors

• Simultaneous measurement of level and flow in a stormwater overflow basin with only 1 sensor

• Flow measurement with back water detection (2 sensors) or sludge detection

• Up to 3 totalizers and 3 (resettable) counters; optionally resettable via digital inputs

• Counting or time pulse output for control of external units