Simple vibration switches and transmitters
Vibration switches and transmitters are easy devices to integrate into industrial machinery and are one of the easiest methods for overall vibration monitoring. These devices, which combine accelerometers and evaluation electronics in one housing, are designed to detect damage early, helping increase machine availability and prevent secondary damage. Typically, machines with motor speeds between 600 and 3000 rpm fall within the 10-1000 Hz frequency range, making vibration monitoring particularly effective for these types of machinery. ifm’s vibration sensors provide measurements based on the ISO 20816 standard, ensuring that vibration levels are accurately assessed according to internationally recognized criteria for machinery health monitoring.
Vibration transmitters provide the added benefit of trending overall machine health over time. The transmitters send a 4-20 mA signal that can be monitored to detect rising vibration levels before they reach warning or alarm limits. This early detection allows for proactive maintenance and the prevention of consequential damage.
The VK, VT, and VWV families of vibration sensors and transmitters can easily be retrofitted to existing systems, making them versatile options for ongoing monitoring. These products use standardized communication to reliably detect increasing vibration levels and deterioration in machine condition, alerting operators with warning and alarm thresholds. Additionally, the VT family offers a high protection rating (IP69K), making it suitable for harsh environments with extreme temperatures, washdown conditions, and other challenging applications.
Common defects detected by these devices include:
- unbalance
- misalignment
- looseness
All of which can lead to significant machine damage if left undetected.
VKV vibration monitor
The VKV vibration sensor provides online monitoring of the overall vibration condition of machines and equipment to ISO 20816. The sensor measures the RMS vibration velocity on a non-rotating component surface and triggers an alarm if the machine vibrations are too strong.
- Mechanical setting rings on the sensor for intuitive setting of switch point and switching delay
- 1 analogue output, 1 switching output
VTV vibration transmitter
The VTV vibration transmitter continuously transmits the RMS vibration velocity (v-RMS) via a 4...20 mA analogue signal. The sensor can thus be easily integrated and enables reliable vibration monitoring thanks to monitoring directly in the controller or frequency converter.
- Versions for up to 125 °C with protection rating IP 69K
- Version for hazardous areas (EX 3D/3G)
- 1 analogue output
Wireless VWV vibration transmitter
The wireless vibration transmitter VWV intermittently transmits the rms vibration velocity (v-RMS) and temperature to the correct gateway via a proprietary mesh protocol. Setting up multiple sensors is simple. The gateway can be integrated into the IT environment either via MQTT or HTTP Rest. In addition to Ethernet TCP/IP and Wi-Fi communication, it also supports network-independent communication options based on the NB-IoT, LTE CAT m1 or 2G GSM mobile radio standards.
- Radio communication
- Battery-powered
Note: Please observe the regulatory restrictions due to country-specific radio approvals indicated in the data sheets of the relevant devices.
Overview of mounting adapters
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M8 magnetic adapter |
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¼"-28 UNF magnetic adapter |
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M8 90° adhesive adapter |
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¼"-28 UNF adhesive adapter |
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M8 adhesive adapter |
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¼-28 UNF adhesive adapter |
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M5 / M8 mounting adapter - Ø 12.5 |
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M5 / M8 mounting adapter - Ø 8.5 |
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M8 mounting adapter - Ø 12.5 |
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M8 mounting adapter - Ø 12.5 |
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M8 - M12 screw adapter |
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M8 - M16 screw adapter |
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M8 - M20 screw adapter |
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