FMU30 Ultrasonic Level Transmitter Spare Parts Overview
FMU30 is an ultrasonic level transmitter in the Endress+Hauser (E+H) Prosonic series, widely used in water treatment, chemical, and storage tank level measurement. This article organizes its original spare part order numbers and specifications by function, facilitating maintenance replacement and procurement selection for technical personnel.
1. Display and Housing Accessories
Display modules and housing seals are wearing parts and should be checked and replaced regularly after long-term outdoor use.
Transparent Cover and Plastic Cover
- Order No. 52025605: Transparent cover, suitable for polyester housing display window, includes EPDM gasket, compatible with Liquicap T/Liquicap M.
- Order No. 52025606: Plastic cover, polyester housing, includes EPDM gasket.
Sealing Ring
- Order No. 52004137: O-ring, polyester housing F16 cover sealing kit.
2. Electronic Components and Display Controller
Electronic inserts and display controllers are the core electrical spare parts of FMU30. When replacing, pay attention to the power supply system and compatibility.
Electronic Insert
- Order No. 71107553: Two-wire 4-20mA electronic insert, dedicated to FMU30.
Display/Controller
- Order No. 71107558: Four-line alphanumeric display/controller, suitable for FMU30.
Commissioning Adapter
- Order No. 71007843: ToF adapter FXA291, used to connect Micropilot M/S, Levelflex M, Prosonic M, Tank Side Monitor, Deltabar S, Cerabar S, Gammapilot M, Micropilot I, etc. to Commubox FXA291.
3. FMU30 Sensors and Process Connections
Sensors are divided into various models by thread specification. When selecting, confirm the process connection standard and sealing material.
Sensor Model Comparison
| Order No. | Thread Specification | Accessories |
|---|---|---|
| 71107554 | ISO228 G1-1/2 | Hex nut G1-1/2 + EPDM gasket |
| 71107555 | ISO228 G2 | Hex nut G2 + EPDM gasket |
| 71107556 | ANSI MNPT1-1/2 | — |
| 71107557 | ANSI MNPT2 | — |
Process Gaskets
- Order No. 71107559: Flat gasket, for G1-1/2 sensor, FMU30.
- Order No. 71107560: Flat gasket, for G2 sensor, FMU30.
Plastic Ring and Mounting Nut
- Order No. 52000598: Plastic ring/hex nut SW70 G2, black PC material, suitable for 2" sensor, Prosonic T/M.
- Order No. 52000599: Plastic ring/hex nut SW60 G1-1/2, black PC material, suitable for 1-1/2" sensor, Prosonic T/M.
- Order No. 52014146: Mounting nut, hexagonal SW60, suitable for FTW31, FTW32, FMI21.
4. Mounting Brackets and Sensor Supports
Reasonable mounting support can improve measurement stability. 316L stainless steel material is suitable for corrosive environments.
Sensor Support Rod
| Order No. | Length | Compatible Sensor | Material | Applicable Models |
|---|---|---|---|---|
| 71452318 | 500mm | 1-1/2" | 316L | FMR10/FMR20/FMU30/FMU40 |
| 71452319 | 1000mm | 1-1/2" | 316L | FMR10/FMR20/FMU30/FMU40 |
| 71452321 | 500mm | 2" | 316L | FMR20/FMU30/FMU41 |
| 71452322 | 1000mm | 2" | 316L | FMR20/FMU30/FMU41 |
Mounting Bracket
- Order No. 71452324: Mounting bracket 250x400x120 G1-1/2, 316L, suitable for FMR10/FMR20/FMU30/FMU40.
- Order No. 71452325: Mounting bracket 250x400x120 G2, 316L, suitable for FMR20/FMU30/FMU41.
Sunshade Cover
- Order No. 71127762: Sunshade cover, dedicated to FMU30, can reduce the impact of direct sunlight on the display and housing.
5. Spare Parts Selection and Procurement Recommendations
- Confirm the level transmitter model is FMU30, and check the sensor thread specification (G1-1/2, G2, MNPT1-1/2, MNPT2).
- Select sealing material according to the process medium. Standard is EPDM; special media require alternative selection.
- For electronic inserts, note the power supply system is two-wire 4-20mA to avoid confusion with four-wire.
- For mounting brackets and support rods, prefer 316L stainless steel, suitable for outdoor and corrosive environments.
- It is recommended to keep common wearing parts (transparent cover, sealing ring, electronic insert) in stock to shorten downtime.
For a complete spare parts list or technical selection support, contact an authorized E+H distributor for the latest ordering information.