Flow switch for hygienic applications Monitoring of flow and temperature in liquids
Inquire nowHygienic design
Accurate level control in liquids
Advantages |
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)
Input
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)
Materials
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