Continuous material flow detection with trend monitoring

FlowJam S

Microwave sensor for contactless monitoring of material flows with trend monitoring

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  • Absolutely insensitive against material deposits
  • For any line diameter
  • With adapter, usable up to 220 °C and 20 bar
  • With ceramic mounting, usable up to 1000 °C
  • Detection through all non-conductive walls
  • Can also be supplied as compact device with integrated electronics
  • Detection of material clogging and material standstill
  • Steel
  • Food
  • Biomass
  • Cement
  • Chemistry
  • Coal plant
  • Coating
  • Incineration
  • Minerals
  • Wood
  • Lime plant
  • Energy
  • Gypsum
  • Power plant
  • Foundry

Application examples:

Technical Specifications
Material to detect Dust, powders or granulates
Working principle Microwave
Process pressure Max. 20 bar
Process temperature Up to +1000°C
Mounting 1 1/2 ” threat connection
Type of Conveying All
Flow rates No limit
Pipe diameter/detection range Up to 1200 mm
ATEX rating Category 3
Output Relay, 4…20mA Trend
  • Detects solid flows of all types for material movement
  • Operates with no contact, using microwaves in a process in which the material movement is detected by using the Doppler effect
  • If container walls, housings or pipelines are not metal, it is possible to measure from the outside
  • Can also be used under difficult conditions such as high operating temperatures and pressures as well as in dust ex-zone 22 with the help of a process adapter
Sensor Technical Data
Voltage 12 V DC powered by transmitter
Power consumption Approx. 1.5 W
Housing Stainless steel 1.4571
Protection system IP 65
Using in Ex-zones Outside pipe: Cat. 3 D
Inside pipe: Cat. 3 D
(only with process adapter)
Process temperature -20… +80 °C (standard)
-20… +220 °C (with process adapter)
-20…+1000 °C (with ceramic flange)
Ambient temperature -20…+60 °C
Working pressure Max. 20 bar (with process adapter)
Detection range 0 – 2 m (dependent on application)
Required material speed for detection Min. 0.1 m/s
Measuring frequency K-Band 24.125 GHz; ± 100 MHz
Transmitting power Max. 5 mW
Dimension FlowJam S Housing: L 107 mm / Ø 52 mm
Thread: L 30 mm / Ø G 1½”
Dimension FlowJam S Ex Housing: L 147 mm / Ø 60 mm
Thread: L 15 mm / Ø G 1½”
Cable gland M16 (Ø 5-10 mm)
Weight FlowJam S Approx. 560 g
Weight FlowJam S Ex Approx. 850 g
Transmitter Technical Data
Power supply 24 V DC ± 10 %
Power consumption Approx.. 3.5 W
Relay contact Max. rated load: 250 V AC
Max. peak current: 6 A
Max. rated load 230 V AC: 250 VA
Max. breaking capacity DC1:
3/110/220 V: 3/0.35/0.2 A
Min. switching load: 500 mW (10 V/5 mA)
Analog output 1 x 4 … 20 mA (0 … 20 mA)
optional: load < 500 Ω (active)
Fall-delay time 250 ms…15 s (continuously adjustable)
Weight Approx. 172 g
Technical Data
Pressure adapter Temperature adapter Food adapter High temperature adapter
Material Stainless steel 1.4571,
POM diaphragm
Stainless steel 1.4571,
Tecapeek diaphragm
Stainless steel 1.4571,
Tecapeek GF30 diaphragm/td>
Ceramic diaphragm
Temperature -20…+80 °C Max. +220 °C Max. +220 °C Max. 1000 °C
Pressure Max. 20 bar Max. 20 bar Max. 20 bar Max. 40 bar
Thread G 1½ inch on both sides G 1½ inch on both sides G 1½ inch on both sides G 1½ inch on both sides
Wrench width 55 mm 55 mm 55 mm 17 mm

The FlowJam S can be easily installed in the following ways:

  • Screwing into a 1 ½-inch-threaded connection
  • using a DN 40 flange as well as
  • using a pipe clamp or other holding bracket
flowjam material flow detection process solids flowjam material flow detection process solids powders flowjam flow detection process solids powders

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