Endress+Hauser Prosonic T FMU30 Ultrasonic Liquid Level Measuring Instrument

Narrow axis installation: PE or PVC waveguide pipes with a diameter of ≥ 100mm should be used, and regular cleaning should be carried out to avoid contamination affecting the measurement.

Flow measurement (open channel/weir): Installed on the inflow side, near the maximum water level H max (with a blind zone reserved), the sensor diaphragm is parallel to the water surface and centrally installed above the channel/weir.

Nozzle installation: If the blind spot requirements cannot be met, a smooth and edgeless nozzle should be used, with a nozzle diameter that matches the maximum length (such as a DN50 nozzle with a maximum length of 80mm and a DN100 nozzle with a maximum length of 300mm).

Operation mode and functional configuration

1. Local operation

Display and buttons: 4-line pure text LCD display screen (supporting 7 languages: German, English, Spanish, French, Italian, Japanese, Dutch), equipped with navigation and confirmation keys, allowing for intuitive viewing of measured values, envelope curves (for fault diagnosis), and alarm information.

Hardware lock: After long pressing the lock button, you need to enter the unlock parameter (100) to operate again to prevent accidental touch.

2. Remote operation

Connect to a PC via Commubox FXA291 (communication box) and ToF Adapter FXA291 (time-of-flight adapter), and use FieldCare software (Endress+Hauser's FDT asset management tool) to achieve remote configuration. The supported functions include envelope curve signal analysis and linearization table editing (import/export).

Equipment data upload/download, measurement point document recording.

Compatible with Ethernet, HART, PROFIBUS PA and other protocols, supporting third-party FDT standard devices.

Certification qualifications and compliance

Certification type specific standards/certification content

CE certification meets the requirements of EU directives, passes relevant tests, and bears the CE mark

Explosion-proof certification  ATEX II 1/2G Ex ia IIC T5 Ga/Gb、IECEx Ex ia IIC T5 Ga/Gb、CSA C/US Class I Div.1 Gr.A-D、NEPSI Zone 0/1 Ex ia IIC T5 Ga/Gb

Environmental and safety standards comply with DIN EN 60529 (protection level), EN 61326 (EMC), NAMUR NE43 (alarm signal), EN 61298-2 (measurement accuracy), etc

Ordering Information and Accessories

1. Ordering Code Rules

It is necessary to specify a combination of 7 dimensions of parameters to generate a complete order number, with key parameters including:

010 (certification type): such as AA (non hazardous area), BB (ATEX explosion-proof), IB (CSA explosion-proof).

020 (display and operation): such as G (no local display), H (with envelope curve display+button).

040 (sensor specifications): such as AA (1.5-inch sensor), AB (2-inch sensor).

050 (process connection): such as GGF (G 1.5 "thread, PP material), RHF (NPT 2" thread, PP material).

2. Standard accessories and optional accessories

Standard supply scope: transmitter body, brief instruction manual (KA01054F), CD-ROM document, explosion-proof version including safety instructions, PC material for nuts (GGF/GHF version), EPDM sealing ring.

Optional accessories: Installation bracket (316Ti or galvanized steel material), threaded flange (PP/PVDF/316L material, suitable for different DN specifications), cantilever bracket+installation frame/wall frame, rain cover (PBT material, suitable for -50 ° C to+150 ° C), Commubox FXA291 and ToF Adapter FXA291.

Maintenance and Safety Tips

Daily maintenance: Regularly clean the sensor membrane to avoid contamination affecting ultrasonic transmission; During narrow axis installation, it is necessary to regularly clean the waveguide.

Safety precautions: Explosion proof versions must strictly follow the corresponding safety instructions (such as XA01054F, XA01080F), and installation and maintenance must be carried out by professional personnel; Avoid contact between the sensor and high vapor pressure media (such as ethanol and acetone), and consult the manufacturer for compatibility if necessary.