Sound Level Meter Outdoor Kit – Weather protection for your sound level meter
Pulsar Instruments Plc offers the possibility of converting your portable instruments into a semi-permanent short or long term outdoor noise monitor using a specially designed outdoor kit. Environmental noise monitoring usually takes place outdoors and therefore the sound meter is subject to various weather conditions.
Rain or even heavy fog can make it impractical to use a normal sound level meter outdoors for long periods of time, as the humidity can damage the microphone capsule and, in extreme conditions, the instrument itself .
Some applications require you to measure for a few hours, half a day, or overnight to get adequate data to monitor a noise problem, while other applications require longer term measurements on a semi-permanent basis. Pulsar offers both short-term and long-term monitoring options with our “short-term” WK1 and “long-term” WK2 kits.
These outdoor kits contain a weatherproof enclosure to house the sound measurement device such as a sound level meter, sound calibrator and a rechargeable power source.
NOTE: The WK1 and WK2 exterior noise measurement kits do not include a sound level meter as standard. The following sound level meters from the Pulsar range are available for purchase with an optional WK1 lightweight outdoor monitoring kit:
- Pulsar Quantifier range of sound level meters
- Pulsar Model 33 Data Logging Real Time Analyzer
WK1 Short Term Outdoor Kit
Please note: The WK1 Short Term Outdoor Kit is only intended for measurements over relatively short periods of time, i.e. up to a day or night. If you need a system for longer measurements, you should choose our WK2 Long Term Outdoor Kit.
To reduce costs, the sound level meter’s preamplifier and microphone itself are installed in the “watertight” mounting system complete with windscreen and bird spikes.
The windshield system provides protection from the elements while the bird spikes are necessary to prevent birds from perching on the windshield and affecting your noise measurements. This device can then be mounted on a standard camera tripod.
The 10 meter cable from the microphone set is connected to the extremely robust and weatherproof carrying case which protects the instrument, power supply and accessories.
The WK2 Long-Lasting Outdoor Kit
The complete outdoor noise meter microphone system consists of an integrated tripod and microphone that hermetically seals the preamplifier and associated circuitry. This is to prevent humidity from affecting the circuits and introducing impedance and therefore measurement errors, so the WK2 system will operate in humidity conditions of up to 99% for optimum performance. .
The microphone windshield/bird spike assembly utilizes the same weather shielding techniques normally used for permanent airport monitors. The sealed unit’s adjustable tripod legs can level the system on any surface and the “hook” system* can be used to attach the assembly to a nearby permanent fixture or add additional weight to the fixture. Assembly. This “tripod and microphone” set is easily transported thanks to its tubular carrying case.
The WK2 has a hook system at the top of the tripod legs to allow it to be chained together. The hook is on a standard 20mm conduit thread so all standard electrical fittings can be used to secure the system in place. Some users mount the microphone on a vertical threaded conduit tube to place it at a special height.*
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