Flow
VMM40 Magnetic Inductive Flow Sensor
The induQ® SIKA VMM40 magnetic inductive flow sensor is because of its robust design suitable for use in harsher ambient conditions. The steel fitting is entirely welded and therefore extremely stable and insensitive to interference.
| Flow velocity range [m/s] | 0.25...10 |
|---|---|
| Volumetric flow range [m³/h] | 1.15...45.2 |
| Repeatability | ±0.15 % of reading |
| Medium / min. conductivity of medium | Water and other conductive liquids / 50 μS/cm |
| Medium temperature | " |
| Hard rubber | 0...90 °C |
| PTFE | -20...100 °C at 40 bar -20...150 °C at 25 bar -20...180 °C at 16 bar |
| Process connections steel | Min. -10 °C |
| Process connections, stainless steel | Min. -20 °C |
| Pulse rate (factory-set) [1/m³] | 1000 |
| Operating range | 0...20 mA / 4...20 mA, selectable |
| Alarm output | 2 |
| Power supply | 230 VAC -15 % / +10 %, 50/60 Hz 18...36 VDC |
| Electrical connection | Electrical connection Plug connector M20 x 1.5 |
| Degree of protection | IP67 |
The induQ® SIKA VMM40 magnetic inductive flow sensor is because of its robust design suitable for use in harsher ambient conditions. The steel fitting is entirely welded and therefore extremely stable and insensitive to interference.
The available nominal diameters from DN 32 to DN 200 cover measurement requirements for average flow rates of up to 10 m/s. The large selection of high-quality materials provides for numerous application possibilities. Earth electrodes are available as an option. Besides, the SIKA VMM40 magnetic inductive flow sensor is available in both separate and compact design and is generally delivered with a calibration certificate. The electronic display allows customer-specific sensor configuration to meet the particular requirements on site.
The smart flow sensors of the induQ® series operate according to the principle of induction: The measuring pipe is in a magnetic field (B). If an electrically conductive medium, with the flow (Q) to be measured, flows through the measuring pipe and thereby at a right-angle to the magnetic field, a voltage (U) is induced in the medium. This voltage is proportional to the average flow velocity and is picked up by two electrodes.
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