Material flow monitor with blockage detection

FlowJam 𝘗𝘭𝘶𝘴

Material flow monitoring with Flow/No Flow information plus additional “Detection of blockage” or “Material flow interruption” function (Jam/NoJam)

The FlowJam Plus is a logical development of the established FlowJam sensor which has proved its worth in thousands of applications:

rapid detection of material movement (Flow/NoFlow)
additional function “Detection of blockage” or “Material flow interruption”

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Operates without contact using microwaves
Particularly reliable device since microwaves can pass through material accumulations

Measurement can be taken from outside all non-metallic tank walls, housings, hose lines or pipelines

Can be used even in difficult conditions, in other words high operating temperatures and pressures and in version for Atex zones (with the help of a processadapter)

Transfer point

Chips of wood are transported by two screw conveyors in a biomass plant.
At the transfer point between the screw conveyors, the FlowJam Plus monitors the flow of material.
In the case of a material flow interruption, it is now possible to detect quickly whether there is a problem because the lower screw no longer removes any material or the feed screw no longer supplies material.

Material infeed to a rotary feeder

In a lime plant, lime is conveyed into the inlet of a rotary feeder via a vertical downpipe. At this point, it should be ensured that there is always a sufficient material flow. When the material column reaches the sensor position in the fall line, the FlowJam Plus signals exactly this state. With this information, the material feed can be controlled better.

Technical Specifications
Material to detect	Dust, powders or granulates
Working principle	Microwave
Process pressure	Max. 20 bar
Process temperature	Up to +220°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

For freefall pipeline or a pneumatic transport system
Operates without contact using microwaves

Measurement can be taken from outside all non-metallic tank walls, housings, hose lines or pipelines

Can be used even in difficult conditions, in other words high operating temperatures and pressures and in version for Atex zones (with the help of a processadapter)

Sensor Technical Data
Housing material	Stainless steel 1.4571
Protective system	IP 65
Process temperature	-20…+80 °C -20…+220 °C (with process adapter) Max. 1000 °C (with ceramic flange)
Ambient temperature	-20…+60 °C
Working pressure	Max. 1 bar Max. 20 bar (with process adapter)
Operating frequency	24.125 GHz; ± 100 MHz
Transmission power	Max. 5 mW
Weight	Approx. 560 g
Dimensions	Housing: Length 107 mm / Diameter 52 mm Thread: Length 30 mm / Diameter G 1½”

Transmitter Technical Data
Power supply	24 V DC ± 10 %
Power consumption	Approx.. 3.5 W
Ambient temperature	-20…+60 °C
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)
Communication	USB
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>	Steel 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