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Fluxicont FS4LK - hygienic design

Fluxicont FS4LK - hygienic design

Flow switch for hygienic applications Monitoring of flow and temperature in liquids

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  • Hygienic design

  • Accurate level control in liquids

  • Wide range of applications
  • Flow velocities from 3cm/s to 300cm/s
  • Wide process temperature range –20°C to +110°C
  • High process pressure tightness up to 50bar and high protection class IP65/IP67
  • Elastomer-free and free of dead space metallic sealing connection
  • Wide environmental temperature range –40°C to +85°C
  • Useable for CIP/SIP cleaning
  • Wear-free calorimetric sensor
  • High accuracy – fast response time
  • Integrated evaluation electronic: Digital display, function LED’s, keyboard / Supply direct voltage 24Vdc: 2x switch output PNP / 1x analogue output 4…20mA; Supply universal voltage 20…253Vac/dc: 1x switch output relay / Connector plug M12
  • High operating comfort: enclosure and display rotatable for optimal operability in each installation position
  • Robust high brightness LED display for best readability
  • 3-key operation without additional assistance with tactile feedback
  • Menu navigation based on VDMA standard
Application description

Due to the device construction with flow velocities from 3cm/s to 300cm/s , process temperatures from –20°C to +85°C, process pressures up to 16bar, process material stainless steel V4A as well as the availability of a variety of process connections like elastomer-free and free of dead space metallic sealing connection, EHEDG-/3A-/FDA-conformal, Varivent® – on request, dairy coupling DIN 11851 – on request, Tri-Clamp® / Clamp DIN 32676 / Clamp ISO 2852 – on reques, aseptic tube coupling DIN 11864-1-A – on request, DRD, APV-Inline, BioControl®, SMS, flanges acc. to DIN and ISO – on request the device is especially suitable for the use for food and beverage industry, for pharmaceutical industry, for biotechnology and for sterile process engineering.

The flow switch is suitable for demanding measuring requirements. 

Due to its high accuracy and the high flexibility of configuration, the device can be suited a wide variety of applications.

The process connection with metallic sealing has been specifically designed for the hygienic, dead-space and elastomer-free process adaption.

The robust design and the high-quality workmanship turns the device into a very high quality product, which even the most adverse environmental conditions cannot affect, whether the lowest temperatures when used outdoors, extreme shock and vibration or aggressive media.

A captive laser marking of the type label ensures the identifiability throughout the entire lifetime of the device.

Obviously is the optional marking of a measurement point designation resp. TAG, a customer label or of a neutral type label, of course also per laser marking.

A LABS-free resp. silicone-free version, a factory calibration with calibration certificate and a customer specific configuration resp. preset is also optionally available like a material test certificate EN10204 3.1 or factory certifications for drink water resp. food suitability.

Customer specific special versions can be realized on request, e.g. software adaption (menu navigation, special functions, etc.), changed terminal assignment resp. connector orientation, design adaption of the user surface and special designs for the process connection.

Technichal data

Step response time: Flow: ≤ 6s (td = 0s / 0% >> 90% / 100% >> 10%); Temperature: ≤ 4s
Start-up time tOn: Flow: ≤ 10s; Temperature: ≤ 2s

Direct voltage
Electronic output type: A / B / C / D
Supply voltage US: 10,5…35VDC, reverse polarity protected
Residual ripple UPP: ≤ 2VPP / USmin ≤ US ≤ USmax
Supply current IIn: ≤ 100mA S1 / S2 = 0mA    Iout = 22mA
Isolation voltage: 500VAC (electrical connections – enclosure)

Universal voltage
Electronic output type: W
Supply voltage US: 20…253VAC – 48/62Hz    20…220VDC
Supply power PIn: ≤ 4VA / 2W
Protection classification: I (EN 61140)
Overvoltage category: II (EN 60664-1)

Measurement parameter: Flow velocity
Measurement principle: calorimetric
Measurement medium: Liquids
Measurement range: 3…300 cm/s / Greatest sensivity 3…100 cm/s / Factory setting 5…100 cm/s
Temperature gradient: ≥ 300 K/min

Switch output PNP S1 / S2
Electronic output type: A / B / C / D
Function: PNP switch to +L
Output voltage UOut: UOut ≥ US – 2V
Output current IL: 0… ≤ 200mA, current limited, short circuit protected
Rise time T90: < 30µs (RL < 3kR / IOut > 4,5mA)
Switch cycles: ≥ 100.000.000

Switch output relay S1
Electronic output type: W
Function: Relay changeover contact - switch to L/+L
Switching values: ≤ 2A / ≤ 62,5VA / 60W
Switch cycles: ≥ 100.000.000

Analogue output Aout – Current 4…20mA
Electronic output type: A / B / C / D
Operating range IOut: 3,8…20,5mA, min. 3,6mA, max. 22mA
Permitted load RL: ≤ (US - 10,5V) / 20mA

Measuring accuracy
Accuracy: Flow: ≤ ±5% MEV14) (5…100cm/s) / (-20°C…+85°C) / ≤ ±10% MEV14) (100…175cm/s) / (-20°C…+85°C); Temperature: ≤ ±1,5K (≥ 20cm/s)
Long term drift: Flow: ≤ ±10% MV13) / year (-20°C…+85°C)
Temperature deviation: Flow: ≤ ±0,4cm/s / K (-20°C…+85°C)

Probe (process wetted): Steel 1.4571/316Ti
Process connection (process wetted): Steel 1.4404/316L / Steel 1.4571/316Ti
Gaskets (not process wetted): FPM – fluorelastomere (e.g. Viton®)

Environmental conditions
Environmental temperature: -20°C...+85°C
Process temperature: -20°C...+110°C; maximum -30°C...+120°C; compensated -30°C...+125°C
Process pressure: ≤ 40 bar
Schutzart: IP65/IP67 (EN/IEC 60529