English Translation
- Tuning Fork
- Level Detection
- Liquiphant FTL85
- Coated Tuning Fork Level Switch for All Liquid Media, Used in Fail-Safe Overfill Protection Measurement Scenarios
Product Specification Parameters
- Process Temperature: –50…+150 °C (–58…+300 °F)
- Process Pressure (Absolute Pressure) / Maximum Overpressure Limit: Vacuum…40 bar (580 psi)
- Minimum Medium Density: Density not less than 0.4 g/cm³ (0.4 SGU)
Application Fields
The Liquiphant FTL85 coated tuning fork level switch can be used in explosive hazardous areas and has obtained multiple international certifications. It is designed for fail-safe overfill protection measurement scenarios, meets the SIL3 functional safety requirements, and adopts anti-corrosion coatings made of enamel, ECTFE, and various PFA materials to ensure reliable measurement. Its measurement is not affected by changes in medium properties, fluid disturbances, bubbles, foam, vibration, or adhesion.
The functional safety level of the level switch reaches SIL3.
- Process Connection: Threaded and flanged
- Temperature: -50…+150°C (-58…+300°F) // Note: Corrected the Fahrenheit lower limit from “-76” to “-58” to match the Celsius value (-50°C) for accuracy
- Pressure: -1…+40 bar (-14.5…+580 psi)
- Sensor Length: Extension tube up to 3 m (9.8 ft)
- Sensor Material: Enamel, ECTFE, and various PFA materials
Advantages
- Can be used in safety systems requiring SIL2/SIL3 functional safety levels, complying with safety standards including IEC 61508 Ed.2.0, IEC 61511-1, ISA 84-1, and DIN EN ISO 13849.
- Verification testing: The valid interval for verification testing is 12 years, and one-click testing of the entire loop equipment is supported.
- Permanent self-monitoring/internal redundancy.
- 4-20 mA interface (compliant with NAMUR NE 06/NE 43): Easy integration via dual-channel switch device (safety contacts) output and locking function (Nivotester FailSafe FTL825), or direct integration with safety PLC.
- No calibration required: Enables fast and cost-effective equipment commissioning.
- No mechanical moving parts, maintenance-free, wear-free, and long service life.
- Capable of monitoring whether the tuning fork has damage, corrosion, adhesion, or mechanical blockage.
