The Optimus Yellow is the entry-level device of Cirrus’ well-renowned Optimus range. Capable of measuring the maximum noise level during a session, this device provides simple and easy-to-understand data.
The Optimus Yellow is a state-of-the-art sound level meter that has been designed by the engineers at Cirrus to meet the very latest standards in noise measuring and monitoring.
Most suited for applications where only simple noise level data is required, the Optimus Yellow can record the maximum sound level (LMax) in decibels, which refers to the loudest recorded noise level during a period of data capturing. This data will give you a basic understanding of the noise levels where you are measuring, and will allow you to identify any particular noise hotspots.
- Measures everything you need simultaneously
- Just switch on, calibrate and start measuring!
- Large screen so your data is easy to read
- Lightweight ergonomic design so it’s easy to use
- Available with either a Class 1 or Class 2 microphone
- Backed by our 15-year “no quibble” warranty
- Long battery life
- 4GB internal memory with the option for up to 32GB
- Bluetooth connectivity, allowing you to use your device with a compatible smartphone
- Factory personnel
- Alarm installers
- Fire alarm noise level testing
- Community noise assessments
- Machinery servicing and maintenance
- Noise ordinance servicing
Applicable Standards
IEC 61672-1:2013 Class 1 or Class 2
IEC 61672-1:2002 Class 1 or Class 2 Group X
IEC 60651:2001 Type 1 I or Type 2 I
ANSI S1.4 -1983 (R2006), ANSI S1.43 - 1997 (R2007)
ANSI S1.25:1991
Microphone
Class 1 MK:224 pre-polarized, Class 2 MK:216 pre-polarized
Microphone Preamplifier
MV:200 Removable Preamplifier (All versions)
Total Measurement Range:
20dB to 140dB RMS Single Range
Noise Floor: <18dB(A) Class 1, <21dB(A) Class 2
Frequency Weightings
RMS & Peak : A, C, & Z Measured Simultaneously
Time Weightings
Fast, Slow & Impulse Measured Simultaneously
Display
High resolution display. Ambient light sensor & illuminated keypad
Memory
4GB (B Version), 32GB factory fit option
AuditStore
Measurement verification data stored in secure memory
Time History Data Rates (Global settings)
10ms, 62.5ms, 125ms, 250ms, 1/2 sec, 1 sec, 2 sec (User selectable)
VoiceTag Audio Recording (B Version)
Up to 30 seconds of audio notes with each measurement
Measurement control
Pause & Back Erase with user selectable duration
Dimensions
Size: 283mm x 65mm x 30mm
Weight: 300gms/10oz
Batteries
4 x AA Alkaline
Battery life
Typically 12 hours with Alkaline AA
Typically 20 hours with Lithium AA Non-Rechargeable
Battery life is dependent upon the battery type, quality & screen brightness
Connections
USB Type B to PC
AC & DC Output via ZL:174 (2 x Phono, 1m)
Multi-pin IO for external power via ZL:171 cable (2.1mm socket)
External Power: 5v-15v via MultiIO socket via ZL:171 cable (2.1mm socket)
Tripod Mount
1/4" Whitworth socket
Case
Material: High Impact ABS-PC with soft touch back & keypad
Environmental
Temperature: Operating -10°C to +50°C, Storage -20°C to +60°C
Humidity: Up to 95% RH Non Condensing
Electromagnetic performance
IEC 61672-1:2002 & IEC 61672-2:2003
Except where modified by EN 61000-6-1:2007 & EN 61000-6-1:2007
Language options
English, French, German, Spanish. Other language options may be available
Software Support
NoiseTools Download, Configuration & Analysis software supplied as standard. Compatible with Microsoft Windows XP, Vista, 7 & 8 (32bit & 64bit)
Measurement Functions
CR:152A & CR:151A
Displayed Functions
LXY, LXYMax, LXYMin
Measurement Run Time
CR:152B & CR:151B
Displayed Functions
LXY, LXYMax, LXYMin
Measurement Run Time
Stored Functions
LXYMax & Time History of LXYMax
Time & Date of Measurement Start
where x=A ,C ,Z; y= F, S, I
Other functions may calculated by the NoiseTools software and displayed on download.
What our customers say..
It is a first class instrument and should be the prime tool of all environmental and occupational health officers...
