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KA01747F/00/EN/01.25-00
71695941
2025-02-12
Products
Brief Operating Instructions
Liquiphant FailSafe FTL80
Vibronic
Level switch in liquids
These Brief Operating Instructions are not a
substitute for the Operating Instructions
pertaining to the device.
Detailed information can be found in the
Operating Instructions and the additional
documentation.
Available for all device versions via:
• Internet:
• Smartphone/tablet: Endress+Hauser
Operations app
Solutions
www.endress.com/deviceviewer
Services
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Related Manuals for Endress+Hauser Liquiphant FailSafe FTL80
Summary of Contents for Endress+Hauser Liquiphant FailSafe FTL80
- Page 1 Products Solutions Services KA01747F/00/EN/01.25-00 71695941 2025-02-12 Brief Operating Instructions Liquiphant FailSafe FTL80 Vibronic Level switch in liquids These Brief Operating Instructions are not a substitute for the Operating Instructions pertaining to the device. Detailed information can be found in the Operating Instructions and the additional documentation.
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Page 2: Related Documents
Related documents Liquiphant FailSafe FTL80 Related documents Order code: XXXXX-XXXXXX Ser. no.: XXXXXXXXXXXX Ext. ord. cd.: XXX.XXXX.XX Serial number www.endress.com/deviceviewer Endress+Hauser Operations App A0023555 About this document Symbols 2.1.1 Warning symbols DANGER This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in serious or fatal injury. - Page 3 Liquiphant FailSafe FTL80 About this document This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in serious or fatal injury. CAUTION This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in minor or medium injury.
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Page 4: Basic Safety Instructions
Basic safety instructions Liquiphant FailSafe FTL80 Basic safety instructions Requirements for the personnel The personnel must fulfill the following requirements to carry out the necessary tasks, e. g., commissioning and maintenance: ‣ Trained, qualified specialists must have a relevant qualification for the specific function and task ‣... -
Page 5: Product Safety
It meets the general safety standards and legal requirements. It also complies with the EU directives listed in the device-specific EU Declaration of Conformity. Endress+Hauser confirms this by affixing the CE mark to the device. Functional safety SIL The Functional Safety Manual must be strictly observed for devices that are used in functional safety applications. -
Page 6: Incoming Acceptance And Product Identification
All of the information on the measuring device is displayed along with an overview of the scope of technical documentation provided. • Enter the serial number on the nameplate into the Endress+Hauser Operations app or scan the 2-D matrix code on the nameplate with the Endress+Hauser Operations app 4.2.1... -
Page 7: Installation
Liquiphant FailSafe FTL80 Installation 4.3.3 Transporting the device • Transport the device to the measuring point in the original packaging • Hold the device by the housing, temperature spacer, flange or extension pipe • Do not hold the device by the vibrating fork! •... -
Page 8: Installation Requirements
Installation Liquiphant FailSafe FTL80 A0037879 2 Installation examples for a vessel, tank or pipe Installation requirements 5.1.1 Vessel with heat insulation If process temperatures are high, the device should be incorporated in the usual vessel insulation system to prevent the electronics from heating as a result of thermal radiation or convection. - Page 9 Liquiphant FailSafe FTL80 Installation 5.1.2 Take switch point into consideration The following are typical switch points, depending on the orientation of the level switch. Minimum distance between the tuning fork and the tank wall or pipe wall: 10 mm (0.39 in) A0018008 ...
- Page 10 Installation Liquiphant FailSafe FTL80 > 25 (0.98) A0033297 5 Example of installation for low-viscosity liquids. Unit of measurement mm (in) High viscosity NOTICE Highly viscous liquids may cause switching delays. ‣ Make sure that the liquid can run off the tuning fork easily.
- Page 11 Liquiphant FailSafe FTL80 Installation A0033239 7 Installation examples for a highly viscous process medium 5.1.5 Take clearance into consideration A0033236 8 Take clearance outside the tank into consideration 5.1.6 Weld-in adapter with leakage hole Weld in the weld-in adapter in such a way that the leakage hole is pointing downwards. This enables any leaks to be detected quickly.
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Page 12: Installing The Device
Installation Liquiphant FailSafe FTL80 A0039230 9 Weld-in adapter with leakage hole Installing the device 5.2.1 Required tools • Screw driver • Open-ended wrench for sensor installation : SW32 or SW41 • Allen key for housing locking screw 5.2.2 Aligning the tuning fork using the marking A0039125 ... - Page 13 Liquiphant FailSafe FTL80 Installation A0034851 11 Installation in pipes (take fork position and marking into consideration) 5.2.4 Screwing in the device • Turn by the hex bolt only, 15 to 30 Nm (11 to 22 lbf ft) • Do not turn using the housing.
- Page 14 Installation Liquiphant FailSafe FTL80 3...4 x ...270° A0018018 For housing types F16 (plastic), F13, F17, T13 (aluminum) The electronics housing can be manually aligned..300° A0018022 5.2.6 Sealing the housing NOTICE Risk of device damage due to moisture inside the housing! The O-ring seal on the housing cover can be destroyed by mineral oil-based grease.
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Page 15: Electrical Connection
Liquiphant FailSafe FTL80 Electrical connection 5.2.7 Closing the housing covers NOTICE Thread and housing cover damaged from dirt and fouling! ‣ Remove dirt (e.g. sand) on the thread of the covers and housing. ‣ If you continue to encounter resistance when closing the cover, check the thread again for fouling. - Page 16 Electrical connection Liquiphant FailSafe FTL80 NOTICE ‣ The device must be connected to a power supply that provides sufficient isolation for the operating voltage. 6.3.4 Overvoltage protection Overvoltage category II (DIN EN 60664-1 VDE 0110-1) 6.3.5 Pollution degree Pollution degree 2 (IEC 60664-1 and IEC 61010-1) 6.3.6...
- Page 17 Liquiphant FailSafe FTL80 Electrical connection FEL85 MAX operating mode (factory setting) FEL85 – + – A0018026 14 Terminal assignment with M12 connector, MAX operating mode FEL85 MIN operating mode FEL85 – + – A0018028 15 Terminal assignment with M12 connector, MIN operating mode 6.3.8...
- Page 18 Electrical connection Liquiphant FailSafe FTL80 Cable specification The electronic inserts can be connected with commercially available instrument cables. If using shielded cables, it is recommended to connect the shielding on both sides for best results (if potential equalization is available).
- Page 19 Liquiphant FailSafe FTL80 Electrical connection 6.3.9 Connection to the Nivotester FailSafe FTL825 FEL85 FEL85 – + – – + – (–) (–) A0018029 Minimum detection (dry-run protection) Maximum detection (overfill protection) Connection to control systems The device is suitable for connection to a programmable logic controller (PLC), a safety PLC (SPLC) or AI Modules via a 4 to 20 mA signal according to EN 61131-2 and NE06, NE043.
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Page 20: Ensuring The Degree Of Protection
Operation options Liquiphant FailSafe FTL80 6.4.1 Device behavior in case of fault (alarm and warning) In the event of a fault the current output is in the range below 3.6 mA. Short-circuits are an exception: in this case, the current output is in the range above 21 mA. For alarm monitoring, the logic unit must be able to detect both HI alarms (≥... -
Page 21: Function Check
Liquiphant FailSafe FTL80 Commissioning Elements on the electronic insert FEL85 U= 24 (12 ... 30) VDC I = 4...20 mA – – High > I >12mA A0018032 Green LED, operation; initialization (lit), normal operation (flashes), fault (off) or flashes alternately with red LED Density ρ... - Page 22 Commissioning Liquiphant FailSafe FTL80 Setting the density range ‣ Select the density ranges for low and high densities based on the media group (e.g. liquefied gas, alcohol, aqueous solutions, acid) on the device; see Operating Instructions. WARNING If the rotary switches are not aligned parallel to each other, no valid density range is selected.
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Page 23: Proof Testing
Liquiphant FailSafe FTL80 Commissioning Proof testing NOTICE ‣ Only start the function test in the OK status. ‣ For applications involved in safety-related operation, refer to the Functional Safety Manual. The test button can be used to simulate the demand current. The output is set so that the currents of 6 mA(MAX) or 9 mA(MIN) are displayed. -
Page 24: Further Information
Commissioning Liquiphant FailSafe FTL80 8.5.2 Behavior of the switch output and signaling in demand mode I >12 mA I >12 mA A0057192 A0057192 22 LED signaling 23 LED signaling = off = off = flashes = flashes 6.0 mA –... - Page 28 *71695941* 71695941 www.addresses.endress.com...
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