Prosonic M FMU41
Technical Data
CompareContinuous / Liquids
| Measuring Principle | Ultrasonic |
| Characteristic / Application | Compact ultrasonic transmitter |
| Supply / Communication | 2-wire HART |
| Accuracy | +/- 2 mm or +/- 0,2 % of set measuring range |
| Ambient temperature | -40 °C ... 80 °C (-40 °F ... 176 °F) |
| Process temperature | -40 °C ... 80 °C (-40 °F ... 176 °F) |
| Process pressure / max. overpressure limit | 0.7 bar ... 3 bar abs (10 psi ... 44 psi) |
| Main wetted parts | PVDF |
| Process connection | G / NPT 2" |
| Blocking distance | 0.35 m (1.15 ft) |
| Max. measurement distance | Liquids: 8 m (26 ft), Solids: 3.5 m (11 ft) |
| Communication | 4...20 mA HART |
| Certificates / Approvals | ATEX, FM, CSA, IEC, INMETRO, NEPSI |
| Application limits | For higher resistance: FMU42/FDU9x Foam / high turbulence possible: FMU42/FDU91 Fast filling and discharging rate: FMU90 + FDU9x Level limit detection: FMU90 + FDU9x |
Continuous / Solids
| Measuring Principle | Ultrasonic |
| Characteristic / Application | Compact ultrasonic transmitter |
| Supply / Communication | 2-wire HART |
| Accuracy | +/- 2 mm or +/- 0,2 % of set measuring range 1) |
| Ambient temperature | -40 °C ... 80 °C (-40 °F ... 176 °F) |
| Process temperature | -40 °C ... 80 °C (-40 °F ... 176 °F) |
| Process pressure / max. overpressure limit | 0.7 bar ... 3 bar abs (10 psi ... 44 psi) |
| Main wetted parts | PVDF |
| Process connection | G / NPT 2" |
| Blocking distance | 0.35 m (1.15 ft) |
| Max. measurement distance | Liquids: 8 m (26 ft), Solids: 3.5 m (11 ft) |
| Communication | 4...20 mA HART |
| Certificates / Approvals | ATEX, FM, CSA, IEC, INMETRO, NEPSI |
| Application limits | Take notice of range diagram |
Liquids
| Measuring Principle | Ultrasonic |
| Product headline | Compact ultrasonic measuring instrument Cost effective solution for open channels |
| Max. measurement error | > 2 mm depending on flow application |
| Measuring range | Measuring distance 0.4...8 m [1.3...26 ft] |
| Max. process pressure | 0.7 bar...3 bar (10 psi...44 psi) |
| Medium temperature range | -40°C...80°C (-40°F...176°F) |
| Degree of protection | IP68 |
| Outputs | 4...20mA HART |
| Inputs | 2-wire |
| Digital communication | HART |
| Hazardous area approvals | ATEX, IEC, FM, CSA, INMETRO, NEPSI |
The Prosonic FMU41 is used for non-contact level measurement of liquids, pastes and coarse bulk solids as well as for flow measurement in open channels or weirs. The two-wire or four-wire compact transmitter can be used for level measurement under demanding conditions such as storage tanks, agitators, silos and conveyor belts. On-site envelope curve display enables simple instrument fault diagnosis. The linearization function (up to 32 points) converts the measured value into length, volume or flow in any unit.
Benefits
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Four-line plain text display with menu-guided on-site operation for fast, simple instrument commissioning, available in 7 languages
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On-site envelope curve display for simple instrument fault diagnosis
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The FieldCare operating software allows convenient remote operation, fault diagnosis and measuring point documentation
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Suitable for hazardous areas (gas Ex, dust Ex)
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Linearization function (up to 32 points) converts the measured value into length, volume or flow in any unit
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Built-in temperature sensor for automatic correction of the temperature-dependent speed of sound
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Optional remote display and operation (maximum installation distance from the transmitter of 20 m (66 ft))
Application areas
For continuous, non-contact level measurement of liquids, pastes, sludge and bulk solids; flow measurement in open channels and measuring weirs; system integration: HART (standard), 4…20 mA, PROFIBUS PA, FOUNDATION Fieldbus; maximum measuring range: liquids: 5 m, solids: 2 m. Other measuring ranges: FMU41: liquids 8 m, solids: 3.5 m; FMU42: liquids: 10 m, solids: 5 m; FMU43: liquids: 15 m, solids: 7 m; FMU44: liquids 20 m, solids: 10 m
Commonly available model:FMU41-ARB2A2
Spare Parts & Accessories 54
54 spare parts · click to expand
| Order code | Description | |
|---|---|---|
| 52020763 | 插接头Cerabar S PMC71, PMP71/PMP75 Deltabar S PMD70/PMD75,FMD76/FMD77/FMD78 Deltapilot S FMB70 | Enquire |
| 535720-9020 | Set of screws housing F12/T12/F23Consists of: 1x stop screw M5x10. 1x retaining screw M8x10. Usage: FMR230/FMR231, FMR240/FMR244/FMR245, FMR250, FMU40/FMU41/FMU42/FMU43/FMU44. | Enquire |
| 52010526 | 密封组件consists of: 1x O-ring 113.9x3.53 EPDM 1x O-ring 72.0x3.0 EPDM 1x O-ring 49.21x3.53 EPDM 1x flat gasket 47x58x2 EPDM 1x flat gasket 59x68x2.5 EPDM 2x O-ring 17,0x2,0 EPDM | Details |
| 52010545 | ***Nameplate Prosonic M, modificationblank for non-hazardous areas only | Enquire |
| 52005936 | 铝盖Material: Aluminium for operating + display module VU331 and housing F12/T12 Micropilot M/S, Prosonic M, Levelflex M | Details |
| 517391-0011 | Cover F12/T12 Alu, coated, gasketMaterial: aluminium, coated. O-ring EPDM. Usage: FMR230/FMR231, FMR240/FMR244/FMR245, FMR250, FMU40/FMU41/FMU42/FMU43/FMU44. | Enquire |
| 52006026 | 终端腔室护盖Hood for terminal compartment Micropilot M, Prosonic M, Levelflex M | Details |
| 52019062 | 终端腔室护盖Hood for terminal compartment for separate display Micropilot M, Prosonic M, Levelflex M | Enquire |
| 52005643 | 遮罩cable compartment, electronics side Micropilot M/S, Prosonic M, Levelflex M | Enquire |
| 518710-0020 | Cover T3/T12 Alu, coated, gasketMaterial: aluminium, coated. O-ring EPDM. Usage: FMR230/FMR231,FMR240/FMR244/ FMR245, FMR250, FMR530/FMR531/FMR532/ FMR533, FMR540, FMU40/FMU41/FMU42. | Enquire |
| 71092209 | O型圈Usage: cover T12/F12/F23. | Enquire |
| 52006197 | 终端模块with cable connection for housing F12 Micropilot M, Levelflex M, Prosonic M | Details |
| 52012156 | 终端模块PROFIBUS PA, FOUNDATION Fieldbus Micropilot II/M, Prosonic M, Levelflex M | Enquire |
| 52013304 | 电源for electronics 4-wire Levelflex M, Prosonic M | Enquire |
| 52013305 | 电源for electronics 4-wire Levelflex M, Prosonic M | Enquire |
| 71396869 | 电源模块90-250VAC (F12) v2, 非防爆Power supply, HART, version 2. Only for "non ex area". Usage: FMU40/FMU41/FMU42/FMU43/FMU44. | Enquire |
| 52015585 | 电源for electronics 4-wire Levelflex M, Prosonic M | Enquire |
| 52015586 | 电源for electronics 4-wire Levelflex M, Prosonic M | Enquire |
| 52013302 | 终端模块for housing T12, Levelflex M, Prosonic M, Micropilot M | Enquire |
| 52013303 | 终端模块2-wire, PROFIBUS PA/FOUNDATION Fieldbus Ex d limiter, for housing T12 Levelflex M, Micropilot M, Prosonic M | Enquire |
| 52018949 | 终端模块4-pole, 2-wire for Aluminium T12 housing OVP = overvoltage protection Levelflex M, Prosonic M, Micropilot M | Enquire |
| 52018950 | 终端模块2-pole, 2-wire PROFIBUS PA, FOUNDATION Fieldbus for Aluminium T12 housing OVP = overvoltage protection Levelflex M, Prosonic M, Micropilot M | Enquire |
| FHX40- | **远程显示仪 FHX40remote display + local operation Micropilot M, Prosonic M, Levelflex M, Gammapilot M in Aluminium field housing IP65 NEMA4X. 4-line LC-display. :: menu driven plain text operation :: Easy setup :: User language selectable :: envelope curve display on site | Enquire |
| 71344231 | 电子器件4-20mA, version 4.02. Hazardous. Usage: FMU40/FMU41/FMU42/FMU44. | Details |
| 71025602 | 电路板4-20mA, version 4.0 Prosonic M FMU40/FMU41/FMU42 | Enquire |
| 71344233 | Electronics FMU4x, Ex, PA, v4.0_2PROFIBUS PA, version 4.02. Usage: FMU40/FMU41/FMU42/FMU43/FMU44. | Enquire |
| 52023759 | ***Electronics FMU4x, Ex, FF, v2.06FOUNDATION Fieldbus | Enquire |
| 71462298 | ***模块 FMU4x, Ex, FF, v4.02.2FOUNDATION Fieldbus, version 4.02.2. Usage: FMU40/FMU41/FMU42/FMU43/FMU44. | Enquire |
| 71386715 | 显示 VU331, version 3Alphanumeric display, 4-line. Usage: FMU40/FMU41/FMU42/FMU43/FMU44. | Details |
| 52010510 | 超声波探头with threaded boss, gasket + hexagon nut Prosonic M | Enquire |
| 52010508 | 超声波探头with threaded boss Prosonic M | Enquire |
| 52000598 | 塑料环|Hexagon nut (SW70) G2, bk, PCfor sensor 2" Prosonic T/Prosonic M | Enquire |
| 52018204 | 转接件for modification to remote display with housing F12 + 2-wire electronics for non-hazardous area only please order FHX40 separately Levelflex M, Micropilot M, Prosonic M | Enquire |
| 52018205 | 转接件for modification to remote display with housing F12 + 4-wire electronics for non-hazardous area only please order FHX40 separately Levelflex M, Prosonic M | Enquire |
| 52016334 | 电缆doubled shielded connection cable for display FHX40 | Enquire |
| 71020502 | 电缆doubled shielded connection cable for display FHX40 | Enquire |
| 71020503 | 电缆doubled shielded connection cable for display FHX40 | Enquire |
| 71020504 | 电缆doubled shielded connection cable for display FHX40 | Enquire |
| 71007843 | ToF 适配器 FXA291Usage: connection Micropilot M, Micropilot S, Levelflex M, Prosonic M, Tank Side Monitor, Deltabar S, Cerabar S, Gammapilot M, Micropilot I, to Commubox FXA291. | Enquire |
| 71000221 | 适配电缆Connection service tool RS232(52013675)/ ToF adapter FXA291 (71007843) > Micropilot M, Prosonic M, Levelflex M, Cerabar S, Deltabar S | Enquire |
| 52013874 | **安装支架for remote display FHX40 | Enquire |
| 942669-0001 | ***Installat_bracket 250x400x120 G2Material: 316Ti. Usage: Prosonic T/M, FMR10, FMR20. | Enquire |
| 52014135 | ***Sensor support 500mm, ST, 2"-sensorMounting 2"-sensor Material: steel, zinc-coated support for installation brackets | Enquire |
| 52014136 | ***传感器支架for mounting of a 2"-sensor Material: 316Ti support for installation brackets | Enquire |
| 71452321 | 传感器支架 500mm, 316L, 2" sensorMounting 2" sensor. Material: 316L. Usage: FMR20, FMU30, FMU41. | Enquire |
| 52014137 | ***传感器支架Mounting 2"-sensor Material: steel, zinc-coated support for installation brackets | Enquire |
| 52014138 | ***传感器支架Mounting 2"-sensor Material: 316Ti support for installation brackets | Enquire |
| 71452322 | 传感器支架 1000mm, 316L, 2" sensorMounting 2" sensor. Material: 316L. Usage: FMR20, FMU30, FMU41. | Enquire |
| 71452325 | 安装支架 250x400x120 G2Material: 316L. Usage: FMR10B, FMR20B, FMR30B, FMR20, FMU30, FMU41. | Enquire |
| 919792-0000 | ***Wall bracket for sensor support, STMaterial: steel zinc coated. Usage: FMR10, FMR20. | Enquire |
| 919792-0001 | ***Wall bracket for sensor support, SSMaterial: 316Ti. Usage: FMR10, FMR20. | Enquire |
| 543199-0001 | Protective cover for housing T12/F12, SSUsage: Micropilot M, Micropilot S, Prosonic M, Levelflex M. Material: 316Ti. | Enquire |
| FXA195- | 通讯接口 FXA195Modem to connect HART field devices to a computer via USB. Commissioning of field devices with software tool. :: To connect to a intrinsically safe signal circuit. :: SIL2, IEC61508. | Enquire |
| FAX50- | 螺纹法兰 FAX50Usage: FMP50, FMP51, FMP52, FMP53, FMP54, FMP55, FMP56, FMP57, FMR20, FMR20B, FMR30B, FMR60, FMR67, FMR60B, FMR66B, FMU30, FMU40, FMU41, FMU42, FMU44, FDU90, FDU91, FDU92, FDU93, FDU95, FTI51, FTI52, FTI55, FTI56, FTI77. | Enquire |
Configurator / Comparison
Click to playManuals & Documents 12
All documents for this model12 documents · click to expand
操作手册 Prosonic M FMU40/41/42/43/44 Chinese
Prosonic M FMU41 HART Chinese
Prosonic M FMU40/41/42/43/44 English
Prosonic M FMU40/41/42/43/44 English
Prosonic M FMU40/41/42/43/44 English
Prosonic M FMU40/41/42/43/44 English
Prosonic M FMU 40/41/42/43 4-20mA HART, PA, FF Description of Instrument Functions English
Prosonic M FMU41 HART English
Prosonic M FMU 40/41/42/43 Foundation Fieldbus Operating Instructions English
Prosonic M FMU 40/41/42/43 4-20 mA HART Operating Instructions English
Prosonic M FMU 40/41/43 PROFIBUS-PA Operating Instructions English
Prosonic M FMU 40/41/42/43 Foundation Fieldbus Operating Instructions English
Case Studies
Municipal Wastewater Treatment · ultrasound — Application Case
Application Context
the inlet, biological and outlet stages of a municipal plant is a typical Municipal Wastewater Treatment duty. The project started from ultrasound , focusing on ultrasonic liquid level measurement or interface detection.
Process Constraints
effluent parameters drift and probes foul with sludge and biofilm, and high solids and corrosive fractions, with large diurnal flow swings only amplify it. The ultrasound specification must therefore cover sizing range against dead zone, mounting height and medium temperature.
Delivery Approach
Delivery was handled as the level range — level solution matched to the actual tank and silo geometry. Execution centred on sizing range against dead zone, mounting height and medium temperature, together with stable compliance with Grade 1A discharge limits and online data reporting.
Field Results
Operation shows the benefit clearly — retrofit without touching the tank, with short installation time, with confidence in this measuring point improving markedly.
Food & Beverage · ultrasound — Application Case
Customer Profile
The typical setting in Food & Beverage is dosing, pasteurising, filling and CIP stages. The measuring point is ultrasound ; the focus is ultrasonic liquid level measurement or interface detection.
Key Difficulties
Conditions are syrups, dairy and beverages that scale easily, under strict hygienic requirements and, on top of that, frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, which a standard configuration cannot handle for long. The design therefore starts with sizing range against dead zone, mounting height and medium temperature.
Implementation
The scope ran through the level range: level solution matched to the actual tank and silo geometry. Technically it hinges on sizing range against dead zone, mounting height and medium temperature, and on these requirements: food-safety and hygienic design per 3-A / EHEDG.
Customer Benefit
In practice this means retrofit without touching the tank, with short installation time, which cut the workload on the site maintenance team.
Chemical & Pharmaceutical · ultrasound — Application Case
Project Background
The project covers reactors, metering vessels and finished-product tanks. The work centres on ultrasound and the core task is ultrasonic liquid level measurement or interface detection.
Operating Challenges
The medium and duty are characterised by highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. So ultrasound cannot be specified generically — it calls for sizing range against dead zone, mounting height and medium temperature.
Solution
The Ainstru engineering team worked through the level range: level solution matched to the actual tank and silo geometry. The configuration involves sizing range against dead zone, mounting height and medium temperature, with these requirements in view: Ex certification and GMP traceability of records.
Results
Since start-up the system has run steadily; the practical result is retrofit without touching the tank, with short installation time.
Power & Energy · ultrasound — Application Case
Project Overview
The site is boiler feedwater, turbine condensate and FGD/DeNOx systems. The customer wanted ultrasound properly configured on the existing plant, with the aim of ultrasonic liquid level measurement or interface detection.
Technical Challenges
What actually causes trouble is high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. All of this means the ultrasound configuration has to involve sizing range against dead zone, mounting height and medium temperature.
Configuration
Supply and installation were organised through the level range: level solution matched to the actual tank and silo geometry. On site this meant sizing range against dead zone, mounting height and medium temperature, checked line by line against: compliance with power-industry codes and unit availability targets.
Performance
After commissioning the outcome is retrofit without touching the tank, with short installation time, and the readings are now used for process tuning.
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