FMU90 Ultrasonic Level Measuring Instrument Overview
FMU90 is a high-performance ultrasonic level measuring instrument. Model FMU90-R11CA111AA3A (order number 52022820) is suitable for continuous level measurement and pump control applications. The instrument supports FDU9x/FDU8x series sensors, has built-in setup and diagnostic software, and features 32-point linearization, enabling precise handling of complex tank shapes.
Core Functions and Advantages
Main Features
- Automatic sensor recognition: Automatically recognizes FDU9x series sensors, simplifying commissioning.
- Guided setup: Simple guided setup process, lowering the operating threshold.
- Continuous and switching outputs: Provides both continuous level signals and switching outputs.
- Level + pump control: Supports alternating pump control, suitable for liquid level control scenarios.
Selection Code Detailed Explanation
Each code position of model FMU90-R11CA111AA3A corresponds to a specific configuration. The specific meanings are shown in the table below:
| Code Position | Meaning | This Unit's Configuration |
|---|---|---|
| Certification | Explosion-proof rating | R: Non-explosion-proof occasion |
| Application | Application type | 1: Level + pump control, alternating |
| Housing/Material | Housing type | 1: Field installation PC, IP66 NEMA4x |
| Operation | Display and operation | C: Backlit display + keypad |
| Power Supply | Supply voltage | A: 90-253VAC |
| Level Input | Sensor input | 1: 1x sensor FDU9x/8x |
| Switch Output | Relay output | 1: 1x relay, SPDT |
| Output | Analog/communication output | 1: 1x 0/4-20mA HART |
| Additional Input | Extra input | A: None |
| Data Recording Function | Data recording | A: Basic type |
| Language | Language support | 3: English, Chinese, Japanese, Korean, Thai, Indonesian |
| Additional Options | Other options | A: Basic type |
Technical Parameters and Specifications
Electrical Parameters
- Power supply: 90-253VAC, wide voltage range adapts to different power grid environments.
- Output signal: 1 channel 0/4-20mA HART, supports remote configuration and diagnostics.
- Switch output: 1 relay SPDT, can be used for alarms or pump control.
Physical Parameters
- Housing: Field installation PC material, protection rating IP66 NEMA4x, suitable for outdoor and harsh environments.
- Operating interface: Backlit display and keypad, convenient for operation at night or in low light.
Application Scenarios and Installation
FMU90 is suitable for level measurement and pump control occasions, especially liquid level systems requiring alternating pump control. Its automatic sensor recognition function can be paired with FDU9x/FDU8x series probes, used in water treatment, chemical storage tanks, food and beverage, and other industries.
Certification and Language Support
The instrument certification is R (non-explosion-proof occasion), suitable for non-hazardous areas. Language support includes English, Chinese, Japanese, Korean, Thai, Indonesian, convenient for operators from multiple countries.
Summary
FMU90-R11CA111AA3A is a fully functional ultrasonic level measuring instrument, integrating level measurement, pump control, and HART communication. The selection code is clear, facilitating engineering selection and procurement. Its 32-point linearization, automatic sensor recognition, and guided setup significantly improve commissioning efficiency, making it a reliable choice for industrial level measurement.