FTL20H Chinese Manual Download
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FTL20H Product Overview
FTL20H is a tuning fork level switch used for industrial level measurement, suitable for limit detection of liquids, slurries, and granular solids. Its compact design makes it widely used in storage tanks, pipelines, and reactors.
Core Features
- High reliability: Tuning fork vibration principle, not affected by medium conductivity or dielectric constant.
- Maintenance-free: No moving parts, extremely low wear, long service life.
- Wide applicability: Can measure liquids, viscous media, and solid powders.
- Multiple outputs: Supports relay, transistor, and NAMUR outputs.
Technical Parameters and Selection
The following are the key technical parameters of FTL20H for selection and procurement reference.
| Parameter | Specification |
|---|---|
| Measuring principle | Tuning fork vibration type |
| Process connection | Thread G1/2, G3/4 or flange |
| Process temperature | -40°C ~ +150°C |
| Process pressure | Max. 40 bar |
| Output signal | Relay, transistor, NAMUR |
| Protection class | IP66/IP67 |
| Power supply voltage | 20~250V AC/DC |
Installation and Commissioning Steps
Correct installation and commissioning are key to ensuring long-term stable operation of the FTL20H. Please follow the steps below.
Installation Steps
- Confirm that the process connection size matches the on-site interface, and check that the sealing ring is intact.
- Install the FTL20H vertically or horizontally on the tank or pipeline, ensuring that the tuning fork is fully immersed in the medium or located at the level detection point.
- Tighten the process connection, avoiding excessive force that may damage the thread.
- For side-wall installation, it is recommended to tilt the tuning fork downward by about 20° to prevent material accumulation.
Commissioning Steps
- Power on and observe the LED indicator status.
- Use a magnetic pen or commissioning software to set the output mode (relay/transistor/NAMUR).
- Perform empty tank and full tank calibration to confirm the switch action point.
- Record the commissioning parameters and lock the settings to prevent misoperation.
Common Problems and Maintenance
The following problems may occur during long-term use of the FTL20H. Refer to the table below for quick troubleshooting.
| Symptom | Possible Cause | Solution |
|---|---|---|
| No output signal | Power failure or wiring error | Check the supply voltage and wiring terminals |
| False alarm | Material attached to the tuning fork or improper installation position | Clean the tuning fork and adjust the installation angle |
| Switch point drift | Medium density change or calibration failure | Recalibrate and confirm the medium parameters |
Regularly check the cleanliness of the tuning fork surface and perform a functional test once a year, which can significantly extend the service life of the FTL20H.
Summary and Download Reminder
The FTL20H Chinese manual is essential material for installation, commissioning, and maintenance. Be sure to download it from a legitimate source and operate according to the manual requirements.
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For more technical support, please consult the manufacturer or authorized distributor.