Overview of Bluetooth Commissioning for FMR10/FMR20 Radar Level Transmitters
FMR10 and FMR20 are cost-effective, wide-range radar level transmitters widely used in the water treatment industry. They support commissioning via Bluetooth APP or the RIA15 display with HART functionality. This article introduces the Bluetooth commissioning process step by step to help engineering technicians and procurement personnel quickly master the key operation points.
Preparation Before Commissioning
Required Tools and Conditions
- FMR10/FMR20 radar level transmitter (powered on)
- Bluetooth-enabled smartphone or tablet
- Official commissioning APP (such as SmartBlue)
- Optional: RIA15 display (with HART functionality)
Safety Precautions
- Ensure the instrument is properly installed and powered on.
- When operating in hazardous areas, comply with relevant explosion-proof regulations.
- It is recommended to keep the Bluetooth connection distance within 10 meters.
Bluetooth APP Commissioning Steps
Step 1: Launch the APP and Search for Devices
- Turn on the phone's Bluetooth and the commissioning APP.
- In the APP, tap "Search for Devices" and wait for FMR10 or FMR20 to appear in the list.
- Tap the corresponding device name to connect.
Step 2: Connection and Login
- For the first connection, enter the default password (usually "admin" or the last four digits of the instrument serial number).
- After successful connection, the APP displays basic instrument information.
- It is recommended to change the password immediately to ensure security.
Step 3: Parameter Settings
The following key parameters can be configured in the APP:
| Parameter | Description | Typical Value |
|---|---|---|
| Measuring range | Set the upper and lower level limits corresponding to 4-20mA | 0-10m |
| Dielectric constant of medium | Set according to the measured liquid | Water: 80 |
| Output mode | Select current output or HART | 4-20mA+HART |
| Damping time | Smooth output fluctuations | 1-5 seconds |
Step 4: Save and Verify
- Tap "Save" to write the parameters to the instrument.
- Observe the real-time echo curve in the APP to confirm the signal is stable.
- If necessary, use the RIA15 display to check the current output value.
Using RIA15 for Auxiliary Commissioning
RIA15 is a loop display with HART functionality that can be connected in series in the 4-20mA loop. It can read the level percentage, current value, and supports HART parameter adjustment. When Bluetooth connection is inconvenient, RIA15 is a reliable backup commissioning tool.
Common Problems and Solutions
- Bluetooth cannot find the device: Check the instrument power supply, restart the APP, and ensure the distance is close enough.
- Unable to modify parameters after connection: Confirm the password is correct, or try restoring factory settings.
- Measured value fluctuates greatly: Appropriately increase the damping time and check whether there is interference at the installation location.
Summary
Through the Bluetooth APP or RIA15, commissioning of the FMR10/FMR20 becomes simple and efficient. Following the above steps, parameter setting and verification can be completed quickly, ensuring accurate and reliable level measurement. It is recommended to save commissioning records for future maintenance.