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Robust stainless steel housing (316L)
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External function test with test magnet
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Onsite function check possible thanks to LED display
Specs at a glance
Function Point level switch Product Liquids Mounting Vessels and pipes from DN50 Product density >0.7 g/cm³ (>0.5 g/cm³ as option) Product temperature –40...+100 °C (–40 to +212 °F)/ +150 °C (+302 °F) Product viscosity ≤10 000 mm2/s (cSt) Process pressure Max. 40 bar (580 psi) Liquiphant FTL31 - DC PNP
Product / Version Price / pcs. in CHF Order code Sensor Type Process temperature Process Connection 1 to 3 4 to 10 11+ Compact version 316L Ra<3.2um/126uin Max . 100°C Thread ISO228 G1/2, 316L 189.- 171.- 155.- FTL31-AA4x2AAWBJ Thread ISO228 G3/4, 316L 189.- 171.- 155.- FTL31-AA4x2AAWCJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 189.- 171.- 155.- FTL31-AA4x2AAW5J Thread ISO228 G1, 316L 201.- 181.- 165.- FTL31-AA4x2AAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 204.- 183.- 167.- FTL31-AA4x2AAWSJ Max. 150°C Thread ISO228 G1/2, 316L 208.- 187.- 171.- FTL31-AA4x3AAWBJ Thread ISO228 G3/4, 316L 208.- 187.- 171.- FTL31-AA4x3AAWCJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 208.- 187.- 171.- FTL31-AA4x3AAW5J Thread ISO228 G1, 316L 220.- 198.- 181.- FTL31-AA4x3AAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 223.- 200.- 182.- FTL31-AA4x3AAWSJ Short tube version 316L Ra<3.2um/126uin Max . 100°C Thread ISO228 G1/2, 316L 204.- 183.- 167.- FTL31-AA4x2BAWBJ Thread ISO228 G3/4, 316L 204.- 183.- 167.- FTL31-AA4x2BAWCJ Thread ISO228 G1, 316L 215.- 194.- 177.- FTL31-AA4x2BAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 218.- 196.- 179.- FTL31-AA4x2BAWSJ Max. 150°C Thread ISO228 G1/2, 316L 222.- 200.- 182.- FTL31-AA4x3BAWBJ Thread ISO228 G3/4, 316L 222.- 200.- 182.- FTL31-AA4x3BAWCJ Thread ISO228 G1, 316L 234.- 211.- 192.- FTL31-AA4x3BAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 237.- 213.- 194.- FTL31-AA4x3BAWSJ Liquiphant FTL31 - IO-LInk (M12)
Product / Version Price / pcs. in CHF Order code Sensor Type Process temperature Process Connection 1 to 3 4 to 10 11+ Compact version 316L Ra<3.2um/126uin Max . 100°C Thread ISO228 G1/2, 316L 189.- 171.- 155.- FTL31-AA7M2AAWBJ Thread ISO228 G3/4, 316L 189.- 171.- 155.- FTL31-AA7M2AAWCJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 189.- 171.- 155.- FTL31-AA7M2AAW5J Thread ISO228 G1, 316L 201.- 181.- 165.- FTL31-AA7M2AAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 204.- 183.- 167.- FTL31-AA7M2AAWSJ Max. 150°C Thread ISO228 G1/2, 316L 208.- 187.- 171.- FTL31-AA7M3AAWBJ Thread ISO228 G3/4, 316L 208.- 187.- 171.- FTL31-AA7M3AAWCJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 208.- 187.- 171.- FTL31-AA7M3AAW5J Thread ISO228 G1, 316L 220.- 198.- 181.- FTL31-AA7M3AAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 223.- 200.- 182.- FTL31-AA7M3AAWSJ Short tube version 316L Ra<3.2um/126uin Max . 100°C Thread ISO228 G1/2, 316L 204.- 183.- 167.- FTL31-AA7M2BAWBJ Thread ISO228 G3/4, 316L 204.- 183.- 167.- FTL31-AA7M2BAWCJ Thread ISO228 G1, 316L 215.- 194.- 177.- FTL31-AA7M2BAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 218.- 196.- 179.- FTL31-AA7M2BAWSJ Max. 150°C Thread ISO228 G1/2, 316L 222.- 200.- 182.- FTL31-AA7M3BAWBJ Thread ISO228 G3/4, 316L 222.- 200.- 182.- FTL31-AA7M3BAWCJ Thread ISO228 G1, 316L 234.- 211.- 192.- FTL31-AA7M3BAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 237.- 213.- 194.- FTL31-AA7M3BAWSJ Liquiphant FTL31 - 20...253 VAC / DC
Product / Version Price / pcs. in CHF Order code Sensor Type Process temperature Process Connection 1 to 3 4 to 10 11+ Compact version 316L Ra<3.2um/126uin Max . 100°C Thread ISO228 G1/2, 316L 189.- 171.- 155.- FTL31-AA1x2AAWBJ Thread ISO228 G3/4, 316L 189.- 171.- 155.- FTL31-AA1x2AAWCJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 189.- 171.- 155.- FTL31-AA1x2AAW5J Thread ISO228 G1, 316L 201.- 181.- 165.- FTL31-AA1x2AAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 204.- 183.- 167.- FTL31-AA1x2AAWSJ Max. 150°C Thread ISO228 G1/2, 316L 208.- 187.- 171.- FTL31-AA1x3AAWBJ Thread ISO228 G3/4, 316L 208.- 187.- 171.- FTL31-AA1x3AAWCJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 208.- 187.- 171.- FTL31-AA1x3AAW5J Thread ISO228 G1, 316L 220.- 198.- 181.- FTL31-AA1x3AAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 223.- 200.- 182.- FTL31-AA1x3AAWSJ Short tube version 316L Ra<3.2um/126uin Max . 100°C Thread ISO228 G1/2, 316L 204.- 183.- 167.- FTL31-AA1x2BAWBJ Thread ISO228 G3/4, 316L 204.- 183.- 167.- FTL31-AA1x2BAWCJ Thread ISO228 G1, 316L 215.- 194.- 177.- FTL31-AA1x2BAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 218.- 196.- 179.- FTL31-AA1x2BAWSJ Max. 150°C Thread ISO228 G1/2, 316L 222.- 200.- 182.- FTL31-AA1x3BAWBJ Thread ISO228 G3/4, 316L 222.- 200.- 182.- FTL31-AA1x3BAWCJ Thread ISO228 G1, 316L 234.- 211.- 192.- FTL31-AA1x3BAWDJ Thread ISO228 G1, 316L, install > accessory weld-in adapter 237.- 213.- 194.- FTL31-AA1x3BAWSJ Accessories
Product / Version Price / pcs. in CHF Order code Weld-in adapter G3/4 d=50, 316L Flush mount process connection. For vessel-mounting. Material: 316L. Seal: silicone O-ring. FDA, EHEDG, 3-A compliant. Usage: FTL20/FTL20H, FTL31/FTL33, FTW23, FTW33, FMI51, FTI51, QMW43, 11371. Usage: TMR35. 32.09 71258355 Weld-in adapter G3/4, d=29, 316L Flush mount process connection. For pipe-mounting. Material: 316L. Seal: silicone O-ring. FDA, EHEDG compliant. Usage: FTL20/FTL20H, FTL31/FTL33, FTW23, FTW33, QMW43. 32.37 71258357 Weld-in adapter G1, d=60, 316L Flush mount process connection. Material: 316L. Seal: silicone O-ring. FDA, EHEDG, 3-A compliant. Usage: FMI51/FMI52, FTI51/FTI52, FTL20/FTL20H, FTL31/FTL33, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL80/FTL81, FTL260, FTW23, FTW33, PMP23, PMP51, PMP135, PTP33B/PTP35, QMW43. Usage: TM401/TM411, TMR35. 47.02 52001051 Weld-in adapter G1, d=53, 316L Flush mount process connection. Material: 316L. Seal: silicone O-ring. FDA, EHEDG, 3-A compliant. Usage: FMI51/FMI52, FTI51/FTI52, FTL20H, FTL31/FTL33, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL80/FTL81, FTL260, FTL330H/FTL330L, FTW23, FTW33, PMP135, PTP35, QMW43. 47.03 71258358 Cable 4x0.34, box M12,Cu Sn/Ni,90o,L=5m M12 plug connector. Usage: FMB50/FMB51/FMB52/FMB53, FTL31/FTL33, FTL51B, FTW23, FTW33, PMC11, PMC21, PMC51, PMP11, PMP21/PMP23, PMP51/PMP55, PTC31B, PTP31B/PTP33B, QMW43. 8.77 52010285 Socket for plug 4p-125V, 4A-M12 M12 socket for plug. Self confectionery connection. Usage: plug M12, FMB50/FMB51/FMB52/FMB53, FMB70, FTL31/FTL33, FTW23, FTW33, PMC41/PMC45, PMP11, PMP21, PMP41/PMP45/PMP46,/PMP48, PMP51, PTC31B, PTP31B, QMW43. 18.82 52006263 Test magnet 8.77 71267011 Prices valid until 30.09.2020 in CHF per unit (not including shipping and applicable sales tax). See
Endress+Hauser Terms and ConditionsIs this Liquiphant level switch not the perfect match for your application?
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Application
The Liquiphant FTL31 is a point level switch for liquids and is used in tanks, vessels and pipes. It is used for overfill prevention or pump protection in cleaning and filter systems as well as in cooling and lubrication vessels, for instance. Ideal for applications in which float switches or conductive, capacitance and optical sensors have been used up to now. The Liquiphant FTL31 also works in areas where these measuring principles are not suitable due to conductivity, buildup, turbulence, flow conditions or air bubbles.
Function
A piezoelectric drive causes the tuning fork of the liquid level switch Liquiphant FTL31 to vibrate at its resonance frequency. When the tuning fork is immersed in a liquid, its intrinsic frequency changes due to the change in density of the surrounding medium. The electronics system in the point level switch monitors the resonance frequency and indicates whether the tuning fork is vibrating in air or is covered by liquid. A signal is output via the DC-PNP, AC/DC or IO-Link electrical connection.
Application Example
The point level switch can be installed in any position in a vessel, pipe or tank, e.g., as overfill prevention or upper level detection (1), lower level detection (2) or dry running protection for pump (3)
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Technical Data
DC-PNP versionSupply voltage 10 to 30 V DC, 3-wire Switching capacity 200 mA Current consumption <15 mA Electrical connection M12 connector, valve plug, cable AC/DC-versionSupply voltage 20 to 253 V AC/DC, 2-wire Switching capacity 250 mA Current consumption <3.8 mA (in cut-off torque <1 mA for 100 ms) Electrical connection Valve plug, cable IO-Link versionSupply voltage 18 to 30 V DC, 4-wire Switching capacity 105 mA (2 × PNP), 200 mA (1 × PNP) Current consumption >15 mA Electrical connection M12 connector Output generalSwitching delay – 0.5 s when tuning fork is covered
– 1.0 s when tuning fork is uncovered
– IO-Link from 0.3 to 60 s
Hysteresis max. 3 mm (0.12 in) Process connections Thread ISO 228 G½"; G¾"; G1";
Thread ISO 228 G¾" and G1" for flushmounted installation in weld-in adapter;
Thread ASME MNPT ½"; ¾"; 1";
EN10226 R½"; R¾"; R1"
Operating conditionsOrientation As required Switch point Vertical installation: 13 mm (0.51 in) ±1 mm
horizontal installation: 10.5 mm (0.4) (water +25 °C (+77 °F), 1 bar (14.5 psi))
Surface roughness Metallic surface in contact with process: Ra ≤ 3.2 μm (126 μin) Ambient temperature –40 to +70 °C (–40 to +158 °F) Process temperature –40 to +100 °C (–40 to +212 °F),
optionally to 150 °C (to +302 °F)
Process pressure –1 to +40 bar (–14.5 to +580 psi) Storage temperature –40 to +85 °C (–40 to +185 °F) Climate class DIN EN 60068-2-38/IEC 68-2-38: test Z/AD Density >0.7 g/cm³ (optionally available: >0.5 g/cm³) Viscosity 1 to 10 000 mPa·s, dynamic viscosity Degree of protection IP65/67 NEMA Type 4X Enclosure (M12 connector);
IP65 NEMA Type 4X Enclosure (valve plug);
IP66/68 NEMA Type 4X/6P Enclosure (cable)Electromagnetic compatibility Electromagnetic compatibility in accordance with all relevant requirements of the EN 61326 series and NAMUR recommendation EMC (NE21). For details, refer to the EC Declaration of Conformity. ApprovalsWHG approval Overfill detection system: Z-65.11-531
Leak detection system: Z-65.40-532
Not available for IO-LinkDimensions in mm (inches)
Compact version
a) Thread ISO 228 G½"; G¾"
b) Thread ISO 228 G1"
* Dimension for process temperature max. 100 °C (212 °F)
** Dimension for process temperature max. 150 °C (302 °F)
Installation according to instruction manual
Short tube version
a) Thread ISO 228 G½"; G¾"
b) Thread ISO 228 G1"
* Dimension for process temperature max. 100 °C (212 °F)
** Dimension for process temperature max. 150 °C (302 °F)
Installation according to instruction manual
Electrical connection
Electronic version 3-wire DC PNP
A) M12 connector
B) Valve plug
C) Cable
Pin 1 Supply voltage +
Pin 2 1st switch output
Pin 3 Supply voltage -Electronic version 2-wire AC/DC
A) Valve plug
B) Cable
Pin 1 Supply voltage +
Pin 2 Switch output min/ Supply voltage –
Pin 3 Switch output max/ Supply voltage –IO-Link with one switch output
Pin 1 Supply voltage +
Pin 2 1st switch output
Pin 3 Supply voltage -
Pin 4 IO-Link communication or 2nd switch output (SIO mode)Terminal assignment
a) Minimum safety
b) Connection for function monitoring using XOR operation
c) Maximum safety
Pin 1 Supply voltage +
Pin 2 1st switch output
Pin 3 Supply voltage -
Pin 4 IO-Link communication or 2nd switch output (SIO mode) -
More documents for FTL31
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IO-Link
Besides its general benefis, summarized below, using IO-Link point-to-point communication with our point level switch Liquiphant FTL31 allows:
- Adjustment to densities less than 700 g/l
- Media diffeentiation between two media (e.g. interface detection)
- Second switch output (parallel switching)
General benefits of IO-Link
Digital measured values:
• Faultless transmission (e.g. EMC caused)
• No conversion, thus a higher total accuracy
More data
• Possibility to carry more values
• Detailed fault information
• Additional process information
Central parameters storage
• Possibility to load set up parameters from the master into a device
• Configuration can be duplicated from one device to the next
• Remote sensor maintenance
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Previous models: FTL20 / FTL260
Price / pcs. in CHF Liquiphant T FTL20 1 to 3 4 to 10 11+ Liquiphant FTL31 FTL20-0010 189.- 171.- 155.- FTL31-AA1U2AAWBJ FTL20-001B 208.- 187.- 171.- FTL31-AA1U3AAWBJ FTL20-0020 189.- 171.- 155.- FTL31-AA4U2AAWBJ FTL20-0025 189.- 171.- 155.- FTL31-AA4M2AAWBJ FTL20-002B 208.- 187.- 171.- FTL31-AA4U3AAWBJ FTL20-002D 208.- 187.- 171.- FTL31-AA4M3AAWBJ FTL20-0110 189.- 171.- 155.- FTL31-AA1U2AAW5J FTL20-011B 208.- 187.- 171.- FTL31-AA1U3AAW5J FTL20-0120 189.- 171.- 155.- FTL31-AA4U2AAW5J FTL20-0125 189.- 171.- 155.- FTL31-AA4M2AAW5J FTL20-012B 208.- 187.- 171.- FTL31-AA4U3AAW5J FTL20-012D 208.- 187.- 171.- FTL31-AA4M3AAW5J FTL20-061B 220.- 198.- 181.- FTL31-AA1U3AAWDJ FTL20-062B 220.- 198.- 181.- FTL31-AA4U3AAWDJ FTL20-062D 220.- 198.- 181.- FTL31-AA4M3AAWDJ Price / pcs. in CHF Liquiphant T FTL260 1 to 3 4 to 10 11+ Liquiphant FTL31 FTL260-0010 Max. process temperature 100oC/212oF 218.- 196.- 179.- FTL31-AA1U2BAWSJ Max. process temperature 150oC/302oF 237.- 213.- 194.- FTL31-AA1U3BAWSJ FTL260-0020 Max. process temperature 100oC/212oF 218.- 196.- 179.- FTL31-AA4U2BAWSJ Max. process temperature 150oC/302oF 237.- 213.- 194.- FTL31-AA4U3BAWSJ FTL260-1010 Max. process temperature 100oC/212oF 218.- 196.- 179.- FTL31-AA1U2BAWSJ Max. process temperature 150oC/302oF 237.- 213.- 194.- FTL31-AA1U3BAWSJ FTL260-1020 Max. process temperature 100oC/212oF 218.- 196.- 179.- FTL31-AA4U2BAWSJ Max. process temperature 150oC/302oF 237.- 213.- 194.- FTL31-AA4U3BAWSJ
