42 year old Pulsar Instruments' sound level meter makes it back to the UK
One of the earliest sound level meters produced by Pulsar Instruments is still in perfect working order
Pulsar Instruments' sound level meter comes home after 42 years
One of Pulsar Instruments' very first sound level meters has come home after a 42 years' absence and is still in perfect working condition.
Pulsar Instruments plc have been designing and manufacturing industrial sound level meters for almost 45 years and this sound level meter is one of the early type being produced. The Model 80 as it was known then was very different to any previous sound level meters and made in Silicon Valley, California in the USA.
The first sound level meter to use integrated circuitry
Pulsar Instruments' engineering staff had the idea of putting not only the sound level on the scale, but also the permitted sound exposure. Today this idea seems obvious, but back then it was revolutionary, as was the rest of the instrument. The sound meter's microphone was a half-inch ceramic unit, then used on the most expensive meters only and, to improve the acoustic accuracy, it was mounted on a boom that slid out of the case to avoid reflections. This meter was one of the first to use integrated circuitry in place of discrete transistors at a time when other leading manufacturers in the UK were using thermionic valves!
This particular Model 80 sound level meter was kept in the US until 2013 when its user, Michael Scheel, the Powerbrace Maintenance Supervisor, needed new batteries and contacted Pulsar Instruments plc in Filey, UK. Although the batteries were no longer manufactured in the USA, two of the original engineers who had worked on legacy sound level meters for Pulsar Instruments in the 1970's (Frankish and Wallis) were able to suggest a replacement battery source.
Pulsar Instruments' Model 80: a sound level meter that has matured well
The temptation to get the 42-year-old instrument back was such that Pulsar Instruments were happy to swap it for a current Model 14 digital sound level meter. The OSHA requirements and regulations in the USA having changed many times over in the last 42 years, the old unit was no longer suitable for legal work.
Now fully established in Yorkshire, the company still uses powder blue colour scheme and the name Model 80 as part of its Pulsar Assessor - industrial noise management - range, 30 years after the first version was introduced.
Pulsar Instruments sound level meters: durable, reliable and innovative
Pulsar Instruments plc cannot guarantee that all its sound level meters will function well after 42 years but confidence on the durability and reliability of its product is such that it has recently introduced a 7-year warranty on its latest range of sound level meters: Pulsar Nova.
Find out how Pulsar Instruments' experience in designing and manufacturing first class noise measurement products will help you meet your workplace noise measurement requirements. Simply, Pulsar product represent the Sound Investment.
To discover the extensive range of Pulsar Instruments' industrial noise monitoring products, please visit www.pulsarinstruments.com or ring one of our noise at work experts on 01723 518011. Alternatively, you can send your comments, suggestions and noise measurement requirements to the team here.
Pulsar Instruments plc is a based in Filey, North Yorkshire.