Environmental Noise Measurement Kit User Manual
Page 5
Introduction
The latest environmental noise measurement kits from Cirrus are designed for use with the Optimus Sound
Level Meters and which provide a fully weather-protected system for outdoor noise measurements.
Both the sound level meter and the measurement microphone are protected against adverse weather conditions
and can be transported inside the robust, secure case.
For longer-term measurements, external power can be connected to the kits allowing for operation over
extended periods of time.
For remote access to the instrument, the CK:685B kit include a modem and GPS receiver which, when used
with Optimus Cloud, allow for measurements to be downloaded to the NoiseTools software, the instrument to
be configured and alerts sent when pre-set noise conditions are met.
Alerts can be sent directly to the Optimus Cloud Notification App, email or SMS
1
text, all of which can be
easily configured by logging into Optimus Cloud.
The case also has space for the outdoor microphone, cable, an acoustic calibrator, documentation and other
accessories that may be needed as well as for the sound level meter itself.
What’s covered in this manual?
This manual covers both the CK:675B and CK:685B versions of the environmental noise measurement kit.
The CK:685B contains a modem and GPS receiver whereas the CK:675B does not.
Where information applies only to the CK:685B, this is indicated in the relevant section.
Please refer to the user manuals supplied with the Optimus Sound Level Meter and Acoustic Calibrator for
more information about the operation of these instruments and for additional care instructions.
This symbol is shown where important instructions or information are displayed.
Please ensure that you read any information and follow the instructions.
