Liquipoint FTW33

Compact point level detector for liquid & pasty media

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SKU: FTW33

Highlights

Conductive point level sensor
Point level switch for liquid and pasty media in the food and beverage industry
Output: 3-wire DC-PNP, Positive voltage signal at the switch output of the electronics & IO-Link: 2 DC-PNP outputs, freely configurable
CIP and SIP cleanability ensured - up to protection class IP 69
3-A and EHEDG certificates

Fields of application

Used in pipes and in storage, mixing and process vessels with or without an agitator
For liquids with electrical conductivity >1 μS/cm or dielectric constant >2
Detection of foam occurring within the food industry

Details

The Liquipoint FTW33 from Endress+Hauser is developed for the food industry and meets all international hygiene requirements. The device also fits perfectly for industrial applications in all industries. For use in pasty and sticky media and media with heavy build-up.

General Information

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Measuring principle	Conductive
Medium type	Oil and water based fluids and sticky media Media which generate heavy buildup
Measurement level range	Standard: Water- or alcohol-based media, Dielectric constant ≥ 10 Extended: Oil-based media 2 < DC < 10 or media that form heavy buildup
Minimum dielectric constant	For water- or alcohol-based media : ≥ 10, for oil-based media: 2- 10
Process temperature range	Standard: –20 to 100 °C Cleaning: -20 to 150°C for 1h
Process pressure range	–1 to 25 bar –14.5 to 362.5 psi
Sensor accuracy	±1 mm (0.04 in) in accordance with DIN 61298-2

Input/Output

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Output	DC PNP

Mechanical Data

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Installation type	Vessel, Tank, Pipe
Installation position	On top,from bottom, laterally
Process connection	R 1, ISO 7/1 (DIN 2999), BSPT NPT, ANSI B 1.20.3
Wetted material	Sensor: 316L Sensor isolation: PEEK
Housing material	Sensor: 316L Sensor isolation: PEEK
Degree of protection	IP65 (valve plug) IP65/67 NEMA type 4X enclosure (M12 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 Enclosure (cable)
Surface roughness	Ra ≤0.76 µm (30 µin)

Electrical Data

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Voltage Type	DC
Power supply	10 to 30 V
Current consumption	< 15 mA
Cable entry	M12 M 16 NPT1/2"
Switch on Delay	< 1 s
Switch response time	0.5 s when sensor is covered; 1.0 s when sensor is uncovered Optional: 0.3 s; 1.5 s or 5 s when sensor is covered and uncovered, see product structure, order code for "Service", option HS "switching delay"

Certification/Approvals

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Hazardous approvals	CSA C/US
Hygienic / Drinking water approvals	3A, EHEDG
Other Approvals/ Certification	EN 10204-3.1

Additional Information

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Ambient temperature range	–40 to 70 °C –40 to 158 °F
Storage temperature	–40 to 85 °C –40 to 185 °F
Shock resistance	prEN 60068-2-27:2007: a = 300 m/s² = 30 g, 3 planes x 2 directions x 3 shocks x 18 ms
Vibration resistance	EN 60068-2-64 (IEC 68-2-64), a(RMS) = 50 m/s²; ASD = 1.25 (m/s²)²/Hz; f = 5 to 2000 Hz, t = 3x2 h
Short-circuit protection	At I > 250 mA; the sensor is not destroyed
Reverse polarity protection	Yes
Overvoltage protection	Overvoltage category II
Electromagnetic compatibility (EMC)	EN 61326/ NE 21