DYNA M-flow
The solid flow meter DYNA M-flow is designed for flow measurement in metallic pipes from a few kg/h to many t/h. The system is suitable for on-line measurement of powders, dust, pellets and granulate in pneumatic conveying or free fall applications.
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 pipe.
These microwaves are being reflected by particles passing through the pipe. Calculation of frequency and amplitude changes allows an accurate determination of the mass flow rate. Non-moving particles like dust accumulation are excluded from calculations.
Characteristics
- For pneumatic conveyors and free fall processes
- IN-LINE measurement
- Easy installation, mounted
- Contact-less and wear-free
- Robust and compact, long-term stable
- DIN-Rail Transmitter with COM-interface for
- direct online-connection
- Galvanically isolated RS485-Interface for
- PLC-connection
- Sensor supply for connections up to 1200 m
- Limit value monitoring with alarm contact
More info
The flowmeter DYNAM-flow consists of a sensor, a transmitter (top-hat rail modul), a welding branch and the PC software DYNAvisual. The sensor is installed by using the welding
branch, through which a whole is drilled into the pipeline. The sensor is screwed into the welding branch until it is flush with the inner pipeline wall.
The device can be used in free fall applications or in vertical or horizontal pneumatic conveying systems. The is connected with a shielded 4-core cable 4...20 mA), pulse output, error relay, RS232 and RS485. transmitter the sensor through and the following interfaces are available: Current output ( For start-up and calibration the software DYNAvisual is used.
A laptop can be connected easily via the COM interface at the front of the transmitter. Calibration can be performed with either one or multiple reference flow amounts. Parameters for up to 24 different products can be saved. The measurement value is output either through annanalog (4...20 mA) or a digital signal

| Technical Data – Sensor | |
|---|---|
| Material – Antenna | Stainless steel 1.4571 (AISI 316 Ti) |
| Isolation | Polyamide (PA 6.6) |
| Process Coupling | Welding branch, stainless steel 1.4571 (AISI 316 Ti) |
| Ambient Temperature | -20 °C … +70 °C (-4 °F … +158 °F) |
| Degree of Protection | IP 65 (EN 60529) |
| EMC | According to EN 61326-1 |
| Technical Data – Evaluation Unit | |
| Design | DIN-rail, 22.5 mm |
| Supply Voltage | 18 … 31 V DC, 3 W |
| Ambient 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 |
| Output – Digital | Pulse as Open Collector, Error relay 30 V AC/DC; 0.5 A |
| Interfaces | RS 232 and RS 485 |
| Process Data | |
| Process Temperature | Max. +90 °C (+194 °F) |
| Process Pressure | Max. 40 bar (570 lbs) |
| Particle Size | 0.01 μm … 20 mm |
| Pipe Cross Section | Max. DN 300 |
| Mass Flow Rate | Min. 1 kg/h |
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