FlowSwitch FS 750

FlowSwitch FS 750

FlowSwitch FS 750

Product catalog summary
Application
The FlowSwitch FS 750 is designed for monitoring dust concentration behind bag or cartridge filters, installed on the clean air side. It detects filter damage and provides trend analysis, allowing timely replacement without production loss or environmental pollution. It is crucial in environments with heavily contaminated air, strict emission limits, or dust reuse.

Scope of Use
The FS 750 is applicable in various industries including aluminum, bakeries, building materials, cement, chemical, fertilizer, food, glass production, mills, pharmaceuticals, power plants, pulp and paper, steel, surface cleaning, and wood industries.

Main Benefits
  • Prevents uncontrolled dust emissions and unnecessary cleaning.
  • Ensures clean recirculated air and compliance with emission limits.
  • Eliminates the need for additional emergency filters.
  • Fast detection of filter damage and unaffected by dust buildup.
  • Robust, maintenance-free design with simple automatic calibration.
  • Easy installation into existing air ducts.

Function
The FS 750 operates on the triboelectric effect, detecting electrically charged particles near the sensor rod. It features an analog output (4-20 mA) for dust level indication, facilitating timely filter replacement. The sensor is maintenance-free, with a long lifespan, and an ATEX version is available for use in hazardous zones.

Installation
Installation involves welding a threaded socket onto the pipe and drilling a hole for the sensor rod. The rod should be at least 1/3 of the pipe diameter and not touch the opposite side. Calibration occurs in clean air over 10 minutes, with manual sensitivity adjustment possible.

Technical Data
  • Housing Material: Aluminum
  • Sensor Rod: Stainless Steel (1.4571)
  • Rod Length: 250 mm, 500 mm, or customized
  • Mechanical Connection: NPT 0.5”
  • Ambient Temperature: -20°C to +50°C (-10°C to +70°C for ATEX)
  • Process Temperature: -20°C to +150°C (-10°C to +180°C for ATEX)
  • Process Pressure: 0 – 2 bar (0.8 – 1.1 bar for ATEX)
  • Protection Class: IP65
  • Ex Protection/ATEX: Optional up to Zone 20/21
  • Power Supply: 24 VDC
  • Current Consumption: Max. 50 mA, <2W
  • Output: 4-20 mA
  • Output Load: Max. 750 Ω
  • Adjustable Parameter: Sensitivity
  • Calibration: Automatic over 10 min
  • Indicators: Multi-color LED for dust level (Non-ATEX only)
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Catalog excerpts

FlowSwitch FS 750-1

J Your safe choice Scope of use Aluminum Steel industry Bakeries Surface cleaning Building materials Wood industry Chemical industry Fertilizer industry Food industry Glass production Mills Pharmaceuticals Power plants Pulp and Paper Application The FlowSwitch FS 750 monitors the dust concentration behind a bag or cartridge filter. It is installed on the clean air side of the filter. It identifies if a filter is damaged, e.g. by cracks, fractures or assembly errors, and gives a trend analysis of the dust concentration. This allows to replace a damaged or broken filter in time, without losing production time and without polluting the shopfloor or environment. Dust monitors are especially important in case of heavily contaminated air, recirculation into the factory, strict external emmision limits or dust reusage. HUMY 300/3000 Continuous inline moisture measurement MF 3000 Microwave mass flow measurement FS 510 Microwave material flow monitoring FS 600 Electrostatic material flow monitoring FS 700/710/750 Triboelectric dust monitoring LC 510 Microwave barrier and limit level monitoring

 Open the catalog to page 1
FlowSwitch FS 750-2

J Your safe choice Main Benefits - Prevents uncontrolled dust emissions and unnecessary cleaning due to damaged dust filters - Ensures recircled air is always clean - Ensures that strict emission limits are fulfilled - Saves the company from investing into additional police / emergency filters - Very reactive and fast detection of filter damage - Is not affected by dust buildup on the rod - Robust design, well protected for several years of operation in a harsh environment - Wear- and maintenance free - Simple automatic calibration - Easy to install into existing air ducts Function The measurement...

 Open the catalog to page 2
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.