Field vibration sensor provides wireless monitoring

December 12, 2016 // By Nick Flaherty
Yokogawa Electric (Tokyo, Japan) has developed a field wireless vibration sensor based on the ISA100 Wireless standard with the ability to quickly update data as well as a long battery life.

By providing real-time updates on vibration levels in plant facilities, the new sensor helps users quickly detect equipment anomalies and enables predictive maintenance.

The principal components of this field wireless vibration sensor are the FN510 field wireless multifunction module, the LN01 piezoelectric type acceleration sensor, and the FN110 field wireless communication module. Via a gateway device, the FN510 uses the ISA100 Wireless communications protocol to exchange data with a host-level system such as a DCS. The data collected with this vibration sensor enables plant operators and maintenance staff to monitor vibration levels in real time. Both explosion-proof and non-explosion-proof types are available.

ISA100 Wireless is a technology that is based on the ISA100.11a standard and includes ISA100.11a-2011 communications, an application layer with process control industry standard objects, device descriptions and capabilities, a gateway interface, infrared provisioning, and a backbone router.

With a field wireless system, plant field devices and analysers are able to communicate wirelessly with host-level monitoring and control systems. The rising need to improve productivity and enhance safety by collecting more data on plant operations is driving the demand for field wireless devices, which can be installed even in difficult to access locations. Field wireless devices have the added advantage of reducing installation costs.

Vibration sensors are useful for the condition monitoring and predictive maintenance of plant machinery such as compressors, pumps, and motors. Conventional methods for monitoring vibration include the use of vibration sensors that rely on wired communications with a host system, and patrols by maintenance staff to collect vibration data. With the widening use of field wireless systems and the need to reduce installation costs, there is an increasing demand for wireless vibration sensors.