Cirrus Optimus Green CR 171B Class 1 Sound Level Meter

Overview

Specifically designed to accurately measure environmental noise and occupational noise with ease-of-use as its highest priority. The Cirrus Optimus Green handheld noise meter effectively assesses environmental noise impact over long and short periods of time, with an abundance of features available for operators. The essential piece of equipment for measuring and monitoring exposure to noise pollution and environmental noise sources.

All noise parameters are measured as one by the instrument, eliminating risks of selecting the incorrect settings and not measuring essential information. The Cirrus Optimus Green CR:171B has a comprehensive measurement capability. Equipped with a wide measurement range of 120dB whilst providing a complete picture of noise under investigation, as the overall Leq, LMax and statistical Ln% values are measured along with a range of noise profiles.

ESS Code: HSLM.10

• IEC 61672-1:2013 Class 1

• Simultaneous measurement and data logging of all available parameters

• Frequency weightings: Simultaneous A, C & Z

• NR & NC values and curves on screen

• Tonal noise analysis

• Up to 28 statistical Ln % values

• Up to 30 seconds of audio notes with each measurement

• Acoustic Fingerprint™ audio triggering, recording and alerts during measurements for replay and analysis

• VoiceTag™ audio note recording and AuditStore™ measurement verification

• Class 1 instruments MK:224/MK:229 prepolarized

• Total measurement range: 20dB to 140dB RMS single range

• Noise floor: <18dB(A) Class 1

• Frequency weightings: Simultaneous A, C & Z

• 1:1 octave bands: 31.5Hz to 16kHz

• 1:3 octave bands: 6.3Hz to 20kHz (bands from 12.5Hz displayed, 6.3Hz, 8Hz & 10Hz stored & downloaded)

• Microphone preamplifier: MV:200 removable preamplifier

• Time weightings: Fast, Slow & Impulse measured simultaneously

• Class 1 sound level meter

• Class 1 acoustic calibrator

• Microphone windshield

• Heavy duty carrying case

• Data transfer cable

• Software USB

• Batteries

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