E+H Ultrasonic Level Transmitter, FMU90-R11CA111AA3A

Product Introduction Overview

Ultrasonic Measurement

Travel Time Principle

Prosonic FMU90

The transmitter can be field-mounted or rail-mounted, and can connect up to 2 sensors - FDU90/91/92/93/95

The Prosonic FMU90 can be field-mounted or rail-mounted in an instrument control cabinet. It is suitable for continuous, non-contact level measurement of liquids, slurries, sludge, powders, and solid lumps. It can also be used for flow measurement in open channels and weirs. A single sensor can simultaneously measure the level and flow rate of rainwater overflow tanks.

It can have up to 6 relay-triggered trend alarms, flow pulse output alarms, or return water/sludge alarms, and is available in single-channel or dual-channel models.

Product Features

• Simple menu-guided field operation with six lines of plain text display, 15 languages ​​selectable

• Field envelope display for simple instrument fault diagnosis

• FieldCare operating software is provided, allowing users to easily perform remote operation, fault diagnosis, and measurement point file creation for the instrument

• Stroke time calibration via built-in or external temperature sensors

• Linearization function (up to 32 points) converts measured values ​​into length, volume, or flow rate in any unit

• Online calculation of canal/measuring weir flow rate based on built-in flow curves

• Automatic recognition function for FDU9x sensors

Technical Specifications

Liquids

Measurement Principle	Ultrasonic Level Gauge
Product Title	Separate transmitter with field housing or top-mounted panel housing, for cabinet-mounted instruments, can connect up to 6 trend alarm relays, flow pulse output/stagnant water control/sludge alarm, single-channel or dual-channel type
Sensor Features	Typical Channel Flow Measurement Pre-programmed Flow Curve
Protection Rating	IP66 (Field Housing), IP20 (Panel Housing)
Display/Operation	6-line graphic backlit display, country-specific menu, envelope field display diagnostics
Output	4...20mA HART, optional 4...20 mA second output (e.g., for 2 times flow measurement 1 relay (standard) Optional: 3 or 6 relays
Input	≥2 FDU9x probes
Digital Communication	HART, Profibus DP
Hazardous Area Certification	FMU allowed to operate FDU9x in Ex-zone

Continuous Level Measurement

Measurement Principle	Ultrasonic Level Gauge
Features/Applications	Separate transmitter with field enclosure or top-mounted panel enclosure for cabinet-mounted instruments, can connect up to 6 trend alarm relays, single-channel or dual-channel type
Features	Protection Rating: IP 66 / NEMA 4x, Automatically Identifies FDU9x Series Probes
Power/Communication	90 ... 253 VAC, 10.5 ... 32 VDC, HART, Profibus DP
Measurement Accuracy	+/- 2mm + 0.17% of measured distance
Ambient Temperature	-40…+60℃
Communication	4 ... 20 mA HART, Profibus DP
Certificates/Certifications	CSA GP
Options	6-line graphic backlit display, country-specific menu, envelope on-site display diagnostics
Components	FDU9x probe

Continuous Level Measurement

Measurement Principle	Ultrasonic Level Gauge
Features/Applications	Separate transmitter with field housing or top-mounted panel housing, for cabinet-mounted instruments, probe-transmitter distance up to 300m
Features	Protection rating: IP 66/NEMA 4x, automatic identification FDU9x series probes, flow measurement in open channels or measuring weirs and pump control (optional)
Power/Communication	90 ... 253 VAC, 10.5 ... 32 VDC, HART, Profibus DP
Measurement accuracy	±2mm + 0.17% of range
Ambient Temperature	-40…+60℃(-40…+140℃)
Communication	4 ... 20 mA HART, Profibus DP
Certificates/Certifications	CSA GP
Options	6-line graphic backlit display, country-specific menu, envelope field display diagnostics
Components	FDU9x Series Probes

Product Applications

Applications in Level Measurement

• Equipped with 1 or 2 ultrasonic probes, it can perform continuous, non-contact level measurement of liquids, pastes, slurries, dust, and rough-surfaced lumpy materials

• Measuring range ≤70m
  

(depending on the specific probe model and the type of material being measured)

• Limit detection (up to 6 relays)

• Multi-stage pump control
  

• Grid control
  

• Calculated values: average, difference, and sum

Applications in Flow Measurement

• Equipped with 1 or 2 ultrasonic probes for flow measurement of media in open channels and measuring weirs

• Simultaneous measurement of level and flow rate of media in overflow conditions using only 1 probe

• Flow measurement with backwater detection (2 probes) or sludge detection function

• Up to 3 accumulators (non-resettable) and 3 counters (resettable) can be configured

• Provides counting pulse output or time pulse output for controlling external units
  

Technical Specifications

Specification	Value
Brand	Endershaus E+H