FMU42 Ultrasonic Level Transmitter Spare Parts Overview
FMU42 is a representative model of the Endress+Hauser Prosonic M series ultrasonic level transmitters, widely used in water treatment, chemical, and silo measurement applications. This article summarizes the commonly used spare part order numbers, specifications, and applicable models to help engineering and technical personnel quickly complete maintenance and procurement.
Spare parts are mainly divided into three categories: mechanical accessories, electronic modules, and display and communication. When selecting, the model and hazardous area must be verified.
Mechanical and Sealing Spare Parts
Plug Connectors and Seal Kits
- 52020763 Plug Connector: Suitable for Cerabar S PMC71, PMP71/PMP75, Deltabar S PMD70/PMD75, FMD76/FMD77/FMD78, Deltapilot S FMB70.
- 52010526 Seal Kit: Contains various EPDM O-rings and flat gaskets, suitable for housing seal maintenance.
Housing Covers and Screws
- 535720-9020 Screw Set: Includes M5x10 set screws and M8x10 fixing screws, suitable for FMR230/231, FMR240/244/245, FMR250, FMU40/41/42/43/44.
- 517391-0011 Aluminum Cover: F12/T12 housing, aluminum coated, with EPDM O-ring.
- 518710-0020 Aluminum Cover: T3/T12 housing, aluminum coated, with EPDM O-ring, covering multiple FMR and FMU models.
- 52005936 Aluminum Cover: For VU331 operating display module and F12/T12 housing.
- 71092209 O-ring: For T12/F12/F23 housing covers.
- 543199-0001 Protective Cover: For T12/F12 housing, material 316Ti stainless steel.
Terminal Compartment Covers and Shields
- 52006026 Terminal Compartment Cover: Suitable for Micropilot M, Prosonic M, Levelflex M.
- 52019062 Terminal Compartment Cover: For remote display version.
- 52005643 Shield: For use on the electronic side of the cable compartment.
Electronic Modules and Power Supply
Terminal Modules
| Order Number | Specification | Applicable Models |
|---|---|---|
| 52006197 | With cable connection, F12 housing | Micropilot M, Levelflex M, Prosonic M |
| 52012156 | PROFIBUS PA, FOUNDATION Fieldbus | Micropilot II/M, Prosonic M, Levelflex M |
| 52013302 | T12 housing | Levelflex M, Prosonic M, Micropilot M |
| 52013303 | 2-wire, PROFIBUS PA/FF, Ex d current limiting | T12 housing |
| 52018949 | 4-pole, 2-wire, with overvoltage protection | Aluminum T12 housing |
| 52018950 | 2-pole, 2-wire, PROFIBUS PA/FF | Aluminum T12 housing |
Power Modules
- 52013304 / 52013305 / 52015585 / 52015586: Power supply for 4-wire electronic components, suitable for Levelflex M, Prosonic M.
- 71396869 Power Module: 90-250VAC, F12 housing, HART version 2, for non-hazardous areas only, suitable for FMU40/41/42/43/44.
Circuit Boards and Electronic Components
| Order Number | Specification | Applicable Models |
|---|---|---|
| 71025602 | 4-20mA, version 4.0 | Prosonic M FMU40/41/42 |
| 71344231 | 4-20mA, version 4.02, Ex-proof | FMU40/41/42/44 |
| 71344233 | PROFIBUS PA, version 4.02, Ex-proof | FMU40/41/42/43/44 |
| 71462298 | FOUNDATION Fieldbus, version 4.02.2, Ex-proof | FMU40/41/42/43/44 |
Display and Communication Accessories
Display Modules and Remote Display
- 71386715 Display VU331: Version 3, four-line alphanumeric display, suitable for FMU40/41/42/43/44.
- FHX40 Remote Display: Remote display and local operation, aluminum field housing IP65 NEMA4X, 4-line LC display, menu-driven plain text operation, supports on-site envelope curve display, user language selectable.
Adapters and Cables
- 52018204 Adapter: For retrofit to remote display, F12 housing + 2-wire electronic components, non-hazardous area only, FHX40 must be ordered separately.
- 52018205 Adapter: For retrofit to remote display, F12 housing + 4-wire electronic components, non-hazardous area only, FHX40 must be ordered separately.
- 52016334 / 71020502 / 71020503 / 71020504 Cables: Double-shielded connection cables for FHX40 display.
Commissioning and Communication Tools
- 71007843 ToF Adapter FXA291: Connects Micropilot M/S, Levelflex M, Prosonic M, Tank Side Monitor, Deltabar S, Cerabar S, Gammapilot M, Micropilot I to Commubox FXA291.
- 71000221 Adapter Cable: Connects service tool RS232 (52013675) or ToF adapter FXA291 to Micropilot M, Prosonic M, Levelflex M, Cerabar S, Deltabar S.
- FXA195 Communication Interface: USB to HART modem, supports intrinsically safe signal loops, compliant with SIL2 IEC61508, for field device commissioning.
Probes, Flanges, and Mounting Accessories
Ultrasonic Probes and Flanges
- 52023965 Ultrasonic Probe: Includes gasket and hex nut, suitable for Prosonic M.
- 52023919 / 52023920 / 52023921 / 52023922 / 52023923 / 52023924 Flanges: Universal flange, max 3bar abs, hole circle PN16/150lbs/10K, with 60x68x2.5 EPDM/FKM-Viton gasket, suitable for Prosonic M FMU42.
Mounting Brackets
- 71022967 Mounting Bracket: Suitable for Prosonic M FMU42/FMU44, process connection M.
- 942666-0000 Mounting Bracket FAU20: Material 316Ti, for mounting FMU42/43/44.
Selection and Procurement Recommendations
When purchasing FMU42 spare parts, please focus on confirming the housing type (F12/T12), electronic version (4-20mA, PROFIBUS PA, FF), and Ex-proof rating. For hazardous areas, corresponding Ex-certified modules must be selected; for non-hazardous areas, standard versions can be used to reduce costs.
It is recommended to keep the complete order number and version number to avoid incompatibility due to version differences. For remote display retrofit, the adapter, FHX40 display, and dedicated cable must be ordered together.