Application examples:

Wet materials cause blockages – avoid downtime with continuous moisture measurement

Control of the sugar moisture in candy production

Moisture measurement of wood chips with M-Sens

Moisture measurement of cereals

Water injection automation in coffee production

Online moisture measurement of wood chips in the silo

Online moisture measurement of coal underneath a conveyor screw

Online moisture measurement of titanium oxide in a screw conveyor

Online moisture measurement of wood shavings on a carriage

Moisture measurement in a fluid bed system

Moisture measurement of tree bark on a conveyor belt

Moisture measurement of potato powder

Online moisture measurement of maize meal

Technical Specifications
Material to measure	Dust, powders or granulates
Place to measure	Screw conveyor, belt conveyor, container, slide, dryer, mixer
Technology	Capacitive
Moisture range	0 to 85% (depending on application)
Material temperature	Max. 80°C (optional 190°C)
Temperaure measurement	Not included
Mounting	Flange / Clamp
Output	4…20mA, Modbus, Profibus

Sensor Technical Data
Housing	Stainless steel 1.4571
Sensor surface	Ceramic
Protection category	IP 67 according to EN 60529
Material temperature	Max. 80°C (optional 190°C)
Working pressure	Max. 1 bar
Power consumption	0.6 W
Response time	0.1 sec
Weight	Approx. 1000 g
Measuring range	0 … 85 % residual moisture (depending on material)
Accuracy	0.1 % absolutely in the calibrated measuring range
Connection cable	shielded cable 4-wired, 0.25 mm2

Transmitter Technical Data
	Transmitter (DIN Rail)	Transmitter (field housing)
Power supply	24 V DC ±10 %	110 / 230 V AC 50 Hz (optional 24 V DC)
Power consumption	20 W / 24 VA
Protection type	IP 40 to EN 60 529	IP 65 to EN 60 529/10.91
Ambient operating temperature	-10 … +45 °C
Dimensions (W x H x D)	23 x 90 x 118 mm	258 x 237 x 174 mm
Weight	Approx. 172 g	Approx. 2.5 kg
Connection terminals cable cross-section	0.2-2.5 mm2 [AWG 24-14]
Current output	1 x 4 … 20 mA (0 … 20 mA), load < 500 Ω	3 x 4 … 20 mA (0 … 20 mA), load < 500 Ω
Interface	RS 485 (ModBus RTU) / USB
Pulse output	Open collector – max. 30 V, 20 mA
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)
Data backup	Flash memory

Flexible positioning The M-Sens WR3 was developed to offer maximum flexibility during assembly. The following aspects should be taken into account in the positioning of the probe: The measuring field penetrates the densest materials (e. g. sand). With a minimum depth of 120 mm, the probe should always be directed at the material to avoid reflection problems.
Installation situations Container For a simple installation, a standard connection flange is available.
Conveyor belt Measurement of material moisture on a conveyor belt. A constant material height is generated by attaching a material skimmer. This offers ideal conditions for an online measurement. The installation in the lower third of a conveyor screw has the advantage that the material volume that passes over the sensor is almost constant, allowing for an optimal measurement. The movement of the auger flights is hidden.
Free fall pipe To be able to measure in free fall pipes or inclined pipes (chutes) with the M-Sens WR3, it is possible to gather material in front of the probe in the short term, for the duration the measurement, with a catching mechanism. After the measurement, the flap will open again and allows the gathered material to continue to drop. The measuring process can be permanently repeated in short or long intervals according to requirements.