Industrial accelerometers, 4-20mA transmitters and loop powered vibration sensors and systems for use in air-handling units, pumps, motors and specialised machines for pharmaceutical production.


The quality, consistency and reliability of production systems are critical to the development and manufacture of pharmaceuticals.  Pumps, fans and motors form the core of most production systems and have to function at peak efficiency for extended periods, often with minimal maintenance.  Vibration monitoring is an essential tool to ensure system efficiency and depends on the precision and repeatability of advanced sensors.

At Hansford Sensors we manufacture a full range of vibration sensors to help your business meet the challenges of monitoring and maintaining a wide range of plant and machinery, including air-handling units and specialised production machines.

Selecting the best accelerometer or vibration sensor for metals processing depends on a number of factors. These include:

  • Availability of the plant
  • Cost of breakdown
  • Criticality of the machine/impact on the production process
  • Access to machine, guarding, health and safety implications
  • Environmental factors

We can provide solutions for both online and offline monitoring, with all our industrial accelerometers being designed for use in the toughest environments, including hazardous areas.


Our range of vibration monitoring sensors and systems include specialised devices for use with air handling units (AHUs). These include simple and cost-effective online 4-20mA sensors (HS-420 Series) mounted on to the bearings and shafts of the AHU, to detect out of balance and misalignment problems. Output connections are normally fed back to a PLC (programmable logic controller) or similar system where overall vibration trends can be monitored remotely.

A further option is a dual output sensor (HS-421 Series), which provides both 4-20mA and AC outputs, enabling plant or maintenance engineers to carry out a detailed vibration analysis via a data collector. This allows bearing defects and mechanical looseness to be easily identified, as well as more detailed information on out-of-balance and possible alignment issues.

Similarly, fixed AC sensors (HS-100 Series) or transmitters can be hard-wired back to switch boxes located in accessible and safe locations. This set up enables vibration data to be collected safely from the same machine positions on a regular basis, for longer term trend analysis.

Where there is limited access a side entry sensor (HS-100S Series) can be used. A further choice that is suitable for smaller AHUs is a compact small footprint sensor (HS-130 Series).

Our range of industrial accelerometers is complemented by our choice of switch boxes, connectors, mounting devices and cables.
Typical solutions include:

Pharmaceutical production line

  • HS-100 Series general purpose 100mV/g AC vibration sensors
  • HS-420 4-20mA vibration transmitters for remote data monitoring
  • HS-100F low frequency sensor for slow rotating machinery
  • HS-500 vibration modules for local display and alarm function
  • HS-SE local switch and connection boxes
  • HS-AC cable assemblies


We have a global network of sales partners, backed by the resources of our central product design, manufacturing and customer centre in the UK.  Our sales partners include vibration analysts, consultants and system builders and integrators.  Each is fully trained, experienced in meeting the challenges of vibration monitoring in a wide range of industrial applications and capable of providing dedicated local technical, engineering and customer service, wherever you are in the world.

For fast, friendly advice, and to learn more about our industrial vibration sensors, 4-20mA transmitters and loop powered sensors for pharmaceutical systems, plus our full range of switch and connection boxes, connectors and mounting options, please contact our sales team.


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