E+H FMU90 Split Ultrasonic Level Meter Overview
E+H FMU90 is a split ultrasonic transmitter that needs to be used with FDU series probes for level measurement. The core of its setup lies in understanding the parameter matching relationship between the transmitter and the probe. Based on the official video, this article outlines the basic setup process.
Basic Setup Steps
The setup of the ultrasonic level meter mainly involves understanding the parameters in the above figure. The following are the key setup items:
1. Probe and Transmitter Matching
- Confirm that the FDU probe model is compatible with the FMU90 transmitter.
- Enter the probe model in the transmitter to ensure the measuring range and frequency are consistent.
2. Level Parameter Configuration
- Enter the main menu and select the "Level" measurement mode.
- Set the empty tank height (E) and full tank height (F), corresponding to the 4-20mA output.
- Adjust the response speed according to the medium characteristics to avoid false echoes.
3. Output and Calibration
- Configure the current output corresponding to the level range.
- Perform on-site calibration if necessary to ensure measurement accuracy.
Key Parameter Quick Reference Table
| Parameter | Description | Typical Value |
|---|---|---|
| Empty tank height (E) | Distance from probe to tank bottom | Set according to site |
| Full tank height (F) | Distance from probe to maximum liquid level | Set according to site |
| Response speed | Adapt to liquid surface fluctuations | Slow/Medium/Fast |
Video from Endress+Hauser YouTube official website. Properly setting the above parameters ensures stable operation of the FMU90.