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- Flush-mounted installation, pipes remain piggable
- For water- and oil-based media
- Reliable switching function due to compensation even in the case of heavy buildup
Specs at a glance
Product Water- and oil-based media with an DC ≥ 2
Installation Vessels and pipes Process temperature range –20 to +100 °C (–4 to +212 °F)
(For 1 hour: +150 °C (+302 °F))Process pressure range –1 to +25 bar
(–14.5 to +362.5 psi)Product / Version Price / pcs. in USD Order code Electrical Connection Power Supply; Output Process Connection 1 to 3 4 to 10 11+ Plug M12, IP65/67 NEMA Type 4 Encl. 10-30VDC; 3-wire PNP Tri-Clamp 409.- 381.- 360.- FTW33-xx4Mxxx Thread ISO228 G1, 316L, install > accessory weld-in adapter 346.- 322.- 305.- FTW33-xx4MWSJ Thread G1/2, 316L install > process sleeve hygienic 338.- 314.- 297.- FTW33-xx4MWVJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 326.- 303.- 287.- FTW33-xx4MW5J DC-PNP, IO-Link; 4-wire Tri-Clamp 409.- 381.- 360.- FTW33-xx7Mxxx Thread ISO228 G1, 316L, install > accessory weld-in adapter 346.- 322.- 305.- FTW33-xx7MWSJ Thread G1/2, 316L install > process sleeve hygienic 338.- 314.- 297.- FTW33-xx7MWVJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 326.- 303.- 287.- FTW33-xx7MW5J Plug M12, IP66/68/69 NEMA Type 4/6P Encl. 10-30VDC; 3-wire PNP Tri-Clamp 450.- 418.- 396.- FTW33-xx4Nxxx Thread ISO228 G1, 316L, install > accessory weld-in adapter 387.- 360.- 340.- FTW33-xx4NWSJ Thread G1/2, 316L install > process sleeve hygienic 379.- 352.- 333.- FTW33-xx4NWVJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 366.- 341.- 322.- FTW33-xx4NW5J DC-PNP, IO-Link; 4-wire Tri-Clamp 450.- 418.- 396.- FTW33-xx7Nxxx Thread ISO228 G1, 316L, install > accessory weld-in adapter 387.- 360.- 340.- FTW33-xx7NWSJ Thread G1/2, 316L install > process sleeve hygienic 379.- 352.- 333.- FTW33-xx7NWVJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 366.- 341.- 322.- FTW33-xx7NW5J Valve plug ISO4400 NPT1/2, IP65 NEMA Type 4 Encl. 10-30VDC; 3-wire PNP Tri-Clamp 409.- 381.- 360.- FTW33-xx4Vxxx Thread ISO228 G1, 316L, install > accessory weld-in adapter 346.- 322.- 305.- FTW33-xx4VWSJ Thread G1/2, 316L install > process sleeve hygienic 338.- 314.- 297.- FTW33-xx4VWVJ Thread ISO228 G3/4, 316L, install > accessory weld-in adapter 326.- 303.- 287.- FTW33-xx4VW5J Accessories
Product / Version Price / pcs. in USD Order code Weld-in adapter G3/4 d=50, 316L 29.21 71258355 Weld-in adapter G3/4, d=29, 316L 28.81 71258357 Weld-in adapter G1, d=60, 316L 60.94 52001051 Weld-in adapter G1, d=53, 316L 41.77 71258358 Cable 4x0.34, box M12, 316L,LED,90o,L=5m 26.23 52018763 Cable 4x0.34, box M12,Cu Sn/Ni,90o,L=5m 13.65 52010285 Socket for plug 4p-125V, 4A-M12 18.17 52006263 Test magnet 10.43 71267011 Prices valid until 31.12.2019 in USD per unit (not including shipping and applicable sales tax). See
Endress+Hauser Terms and ConditionsIs this Liquipoint level switch not the perfect match for your application?
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Application
The Liquipoint FTW33 is a point level switch for liquid and pasty media. It is used preferably in storage tanks, mixing vessels and pipes. Developed and built for the food and beverage industry, the Liquipoint FTW33 meets international hygienic requirements. It is particularly suited to applications where flush-mounting is necessary. The Liquipoint FTW33 can be used permanently in process temperatures up to 100 °C (212 °F) and for 60 minutes in cleaning and sterilization processes up to 150 °C (302 °F). The Liquipoint FTW33 can also be used for detecting the foam that commonly occurs within the food and beverage industry.
Function
A low, galvanically isolated AC voltage is applied at the electrode in contact with the process. If liquid or pasty media come in contact with the electrode, a measurable current flows and the Liquipoint FTW33 switches. Active buildup compensation ensures reliable switching of the measuring device even if buildup occurs on the sensor.
Application Example
The measuring system consists of a Liquipoint FTW33 point level switch, e.g. for connection to programmable logic controllers (PLC).
a) Overfill protection or upper level detection (MAX)
b) Pump dry running protection (MIN)
c) Lower level detection (MIN)
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Technical data
OutputFunction – 3-wire DC-PNP
– Positive voltage signal at the switch output of the electronics
– IO-Link: 2 DC-PNP outputs, freely configurable
Connectable load 200 mA (short-circuit proof) Residual voltage <3 V Residual current <100 μA Supply voltage – 10 to 30 V DC
– IO-Link: 18 to 30 V DC
Power consumption <1 W (at max. load: 200 mA) Current consumption <15 mA Cable specification – M12 connector: IEC 60947-5-2
– Valve plug: Cable cross-section ≤1,5 mm² (16 AWG ); ⌀ 3.5 to 8 mm
– Cable: Cable cross-section 0,75 mm² (AWG 20)
Connecting cable
length– max. 25 Ω/core, total capacitance <100 nF
– IO-Link communication: <10 nF
Performance characteristicsReference operating
conditions– Ambient temperature: 20 °C (68 °F) ±5 °C
– Medium temperature: 20 °C (68 °F) ±5 °C
– Process pressure: 1 bar (14.5 psi)
– Medium: water
– Conductivity: approx. 200 μS/cm
Maximum uncertainty ±1 mm (0.04 in) in accordance with DIN 61298-2 Hysteresis max. 1 mm (0.04 in) Non-repeatability ±0.5 mm (0.02 in) in accordance with DIN 61298-2 Switching delay – 0.5 s when sensor is covered (can be configured via IO-Link 0.3 to 60 s)
– 1.0 s when sensor is uncovered (can be configured via IO-Link 0.3 to 60 s)
Switch-on delay – <1 s (no defined switching status before this)
– IO-Link: <2 s (no defined switching status before this)
Orientation any position EnvironmentAmbient temperature
rangeAt the housing: –40 to +70 °C (–40 to +158 °F) Storage temperature –40 to +85 °C (–40 to +185 °F) Climate class DIN EN 60068-2-38/IEC 68-2-38: test Z/AD Degree of protection – IP65 (valve plug)
– IP65/67 NEMA Type 4X Enclosure (connector for plastic housing cover)
– IP66/68/69K NEMA Type 4X/6P Enclosure (M12 connector for metal housing cover)
– IP66/68 NEMA Type 4X/6P Encl. (cable)
Cleaning Resistant to typical cleaning agents from the outside, in accordance with Ecolab test.
Electromagnetic
compatibility– In accordance with EN 61326-Serie series and NAMUR Recommendation EMV (NE 21)
– Only the requirements of IEC/EN 61131-9 are met if IO-Link communication is used
Short-circuit
protectionOverload protection/short-circuit protection at I > 250 mA; the sensor is not destroyed. Intelligent monitoring: Testing for overload at intervals of approx. 1.5 s; normal operation resumes once the overload/short-circuit has been rectified
ProcessProcess temperature
range–20 to +100 °C (–4 to +212 °F), M24 process adapter with EPDM process seal for 1 h: +130 °C (+266 °F) Process pressure range –1 to +25 bar (–14.5 to +362.5 psi) Standard Water- or alcohol-based media (DC ≥10) Extended Oil-based media (DC > 2.4) or media that form heavy buildup IO-Link Adjustment up to DC >2.4 via the IO-Link interface for water-, alcohol- and oil-based liquids or powdered products Mechanical constructionWeight approx. 300 g (10.58 oz) Materials in contact
with process– Sensor: 316L (1.4404), PEEK The material PEEK meets the requirements of EU 1935/2004, 10/2011 as well as
2023/2006 and FDA 21 CFR 177.2415– Process connection: 316L (1.4404/1.4435)
Materials not in
contact with processHousing covers:
– M12 metal: 316L (1.4404)
– M12 plastic: PPSU; Design ring: PBT/PC
– Valve connector, plastic: PPSU
– Plastic cable: PPSU; Housing: 316L (1.4404)
Housing: 316L (1.4404)
Surface Ra ≤ 0.76 μm (30 μin) OperationOptions – Local
– Via test magnet
– Via IO-Link operating menu
ApprovalsApproval CSA C/US General Purpose Sanitary compatibility 3-A; EHEDG Dimensions in mm (inches)
Housing, Electrical connection
a) Metal M12
b) Plastic M12
c) Plastic valve plug
Installation according to instruction manual
Process connections
a) Clamp DN25-38; 1 to 1½"
b) Clamp DN40, 2"
c) Thread G¾"
d) Thread G1"
e) Thread G½" Hygienc adapter
Installation according to instruction manual
Electrical connection
M12 connector
a) Function monitoring using XOR operation
Valve plug
IO-Link with one switch output
Terminal assignment
a) Minimum safety
b) Connection for function monitoring using XOR operation
c) Maximum safety
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More documents for FTW33
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IO-Link
Besides its general benefits, summarized below, using IO-Link point-to-point communication with our point level switch Liquipoint FTW33 allows:
- Adjustment on media with DC < 2
- Evaluation of thickness of buildup
- Two switching points adjustable for different media
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
