DYNA M-flow

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DYNA M-flow

Flow Measurement of bulk solids with microwave-technology

For pneumatic conveying and freefall processes
Easy installation and start up
Contact-less and integral measuring
Adjustable sensitivity
Long-term stable, reliable, robust

Sensor supply for connections up to 1200 m
Galvanically separated RS485-Interface for PLC-Connection
Analogue output, pulse output, RS232, RS485 and threshold alarm relay

Description
Technical Data
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Using state-of-the-art microwave technology the flowmeter DYNA M-flow is designed for flow measurement in metallic pipelines from a few kg/h to many t/h. The system is suitable for on-line measurement of powders, dust, pellets, and granulates.

The measurement principle of the DYNA M-flow is based on the physical Doppler-Effect, whereas the sensor generates a uniform field in the microwave frequency range inside the pipeline. These microwaves are being reflected by particles passing through the pipe. Calculation of frequency and amplitude changes allows an accurate determination of the solid's mass flow rate. Nonmoving particles like dust accumulation are excluded from calculations.

Design

The DYNA M-flow consists of a probe, a DIN-rail transmitter, a welding branch and the PC-software DYNAvisual.

The process interface occurs by a welding branch, through which the sensor is screwed flush with the inside of the pipe. With this a flanging at perpendicular and horizontal pipes for free fall and pneumatic conveying occurs.

The probe is connected by a four core cable to a DIN-rail mounted transmitter with 4...20 mA, pulse output, error relay, RS232 and RS485 output.

For commissioning and calibration a notebook with our DYNAvisual software is needed. Calibration can be performed with either one or more reference points.

The measurement value is output either analogue or as digital signal. A serial COM interface is available at the front of the transmitter to connect a notebook computer and a RS485 interface for connection to a PLC system.

Technical Data Sensor

Material	Antenna	Stainl. steel 1.4571 (AISI 316 Ti)
	Isolation	Polyamide (PA 6.6)
	Process coupling	Welding branch, stainl. steel1.4571 (AISI 316Ti)
Ambient cond.	Temperature	-20 °C ... +70 °C (-4 °F ... +158 °F)
	Degree of protection	IP 65 (EN 60529)
	EMC	According to EN 61326-1

Technical Data Ecaluationg Unit

	Design	DIN-rail, 22,5 mm
	Supply voltage	18 ... 31 V DC, 3 W
Ambient cond.	Temperature	+10 °C ... +60 °C (+14 °F ... +140 °F)
	Degree of protection	IP 30 (EN 60529)
Output	Analogue	0,4 ... 20 mA (load < 750 Ω)
		0,2 ... 10 V
	Digital	Pulse as Open Collector
		Error relais 30 V AC/DC; 0,5 A
	Interfaces	RS 232 und RS 485

Process Data

Process conditions	Temperature	Max. +90 °C (+194 °F)
	Pressure	Max. 40 bar (570 lbs)
	Partical size	0,01 μm ... 20 mm
	Pipe cross section	Max. DN 300
	Mas flow rate	Min. 1 kg/h