Maintenance, Test & Measurement, Calibration


Accelerometer for vibration monitoring

October 2019 Maintenance, Test & Measurement, Calibration

Monitran has introduced the General Purpose Monitoring Sensor range, for use with PLCs and other industrial controllers, which provide users with a continuous output of vibration, usually as a 4-20 mA signal. Changes in the monitored signal allow users to spot vibration changes in the part of the machine to which the sensor is attached. Rapid changes accompany such conditions as machinery working loose from its mountings, fan blade malfunction, or bearing failure, all of which require immediate attention and machine shutdown to avoid widespread damage. If the signal is logged at regular intervals, gradually increasing vibration indicates wear in the machine calling for replacement or a detailed study with a vibration analyser.

This type of information is required in a wide range of environments, so while the basic output is common to all sensors in this category, there are many variations allowing them to be used in those different environments, including:

• Standard industrial conditions.

• Submersible and long term wet operation.

• Approved under ATEX, IECEx and ANZEx for use in hazardous areas.

The long standing 1185/C series is tried and trusted. It is a general purpose, top-entry velocity transducer with DC output, made from robust stainless steel throughout for continuous vibration monitoring in harsh environments. The unit is sealed to IP67 with industry standard two-wire 4-20 mA output proportional to sensor range that can connect directly to PLC, DCS and other industrial controllers.

The 1185I /C model is ATEX and IECEx Group I & II certified. It has all of the 1185’s components with integral stainless overbraided ETFE cable and is available with a wide range of mountings.

The 1185 W model is a submersible for harsh underwater environments and areas with constant moisture or condensation. It includes integral heavy duty polyurethane cable and is sealed to IP68 and available with a wide range of mountings. The 1185IW is ATEX and IECEx Group I & II certified.


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