Optimus Red Sound Level Meter for Occupational Noise
The optimus red sound level meters use the very latest digital technology and industrial design to give you the ideal instrument for Occupational and Industrial Hygiene noise measurements.
The optimus red sound level meters are the ideal instrument for these applications with a clear, high resolution OLED colour screen, a wide 120dB measurement span (up to 140dB(A) and 143dBC Peak) and simultaneous measurement of all available parameters.
There’s no setup or complicated configuration needed. Just switch on, calibrate and press start. It’s that simple.
The ideal instrument for any occupational noise application
With two additional “virtual” noise meters running at the same time, you can meet any noise regulation, guideline or standard.
Whether you need to measure to OSHA HC & PEL, MSHA, ACGIH or any other regulation, an optimus red is the ideal instrument.
- Very simple to use with only 3 button pushes needed to start a measurement
- Every functions measured at the same time so there’s no risk of missing data
- High resolution color OLED screen with ambient light sensor allows
- 120dB measurement span removes problems with setting the correct range
- Option of 1:1 octave band filters for hearing conservation and noise control
- VoiceTag audio note recording lets you store notes and information about each measurement
- Licence free NoiseTools software supplied as standard with no installation restrictions to save you money
Our most popular optimus red instruments
There are 8 versions of the optimus red sound level meters, each with the same features that make the optimus unique. Each instrument has slightly different capabilities including data logging and 1:1 octave band filters as well as Class 1 or Class 2 performance.
Listed below are our most popular versions.
- CR:162C Class 2 optimus red sound level meter with data logging and 1:1 octave band filters
- CR:162B Class 2 optimus red sound level meter with data logging
We would recommend that you consider a measurement kit which contains all of the accessories needed to carry out noise measurements.
Key Features of the optimus red sound level meters
The aim of the optimus sound level meters is to make noise measurements simple.
- Simple operation with an ergonomic design
- Simultaneous measurement of all workplace noise parameters with additional two “virtual” noise meters
- Class 1 or Class 2 Performance
- VoiceTag™ note recording
- AuditStore™ measurement verification
- Latest digital technology with a high resolution colour OLED display and back-lit keypad
- Measure up to 140dB(A) and 143dB(C) Peak with a single measurement range
- Real-time 1:1 Octave Band Filters
- NR & NC values & curves on screen
- Pause & Back Erase as standard
- Standard 4GB memory with factory option of 32GB
- Long battery life
- Measure up to 170dB with the optional MV:200EH microphone system
- NoiseTools software with licence free installation and free updates
VoiceTag audio recording
Before each measurement is made, you can record a VoiceTag by simply speaking into the microphone. You can record notes about the measurement location, describe what is being measured or simply store information that may be useful at a later date.
AuditStore data verification
AuditStore™ is a new technology that helps you to ensure that your noise measurement data is valid and trustworthy. AuditStore allows the user to verify measurements that have been downloaded to the NoiseTools software against a secure data store within the instrument.
Each time you make a measurement with your optimus, a selection of the overall data is stored into a separate, secure memory that is independent of the main memory card. This data contains essential information about the measurement such as the time, date and duration, the LAeq, Peak(C) and LAFmax, LA10 & LA90 (where available) and the overload indication.
In addition to the noise measurement data, information about the last calibration is also stored. The AuditStore data can be downloaded from the instrument when required and then the measurements can be checked against the AuditStore. The NoiseTools software will check that the measurement information held in the main database and displayed on the screen matches the values within the AuditStore secure memory.
NoiseTools Software
The NoiseTools software package gives you a quick and simple way to download, analyse and report your noise measurement information. The initial summary screen shows you the most commonly used information and, through simple icons, gives you access to the detailed measurement data. You can simply print the summary screen to get a quick measurement report.
For advanced users, each and every function measured by the instrument is available for review and analysis and the data can be exported for further use. VoiceTag audio recordings can be played back for reference and are automatically stored with the measurement data. Where Octave Band data is available, this information can be used by the program to calculate the level of protection from a range of hearing defenders and ear plugs.
To help you keep your noise measurement data organised and easy to find, NoiseTools allows each measurement to be allocated to people, places and projects. Measurements can be sorted or grouped by any parameter, person, place or project and measurement reports created quickly and easily.
NoiseTools is supplied free from any licensing restrictions or limits allowing you to install the program on as many PC’s as needed at no additional cost.
The ideal solution for occupational noise.
The optimus red sound level meters are the ideal sound instruments for occupational noise and industrial hygiene measurements, as well as for basic noise surveys, and will give you all of the information you need, right at your finger tips.
- Occupational & Industrial Hygiene Noise Evaluations
- Noise Exposure Calculations
- Hearing Protector Selection using HML or Octave Band Methods
- OSHA HC & PEL, MSHA & ACGIH Noise Exposure Assessments
- Machinery Noise Tests
- Noise Ordinance & Community Noise Assessment
- General Noise Measurements
OSHA,ACGIH & other regulations
If you need to meet regulations such as OSHA HC & NC, MSHA HC or ACGIH, the two “virtual” noise meters in the Dose View can be quickly configured to provide you with this information.
The Quick Setup gives access to a number of preset functions including OSHA HC & NC, OSHA HC & ACGIH and MSHA HC & EC. The custom settings can be used to choose any other setup or configuration that you may need.
Once you’ve chosen the setup needed it will be stored so each time you use the meter you will have the information you need.
For the two “virtual” noise meters, the LAVG, TWA, % Dose and Estimated % Dose are displayed.
Octave Band Filters for Noise Control & Selecting Hearing Protection
The CR:162C and CR:161C instruments also feature real-time octave band filters which will measure the noise in 10 different frequency bands.
The octave band measurement is made at the same time as the other measurements and includes the overall level in each band along with a time history of the bands across the measurement period.
NR & NC values & curves on screen
The D variants add NR & NC values and curves to the 1:1 octave band measurements.
This information can be useful in checking the performance of HVAC systems and noise levels in rooms.
Basic noise level measurements
The optimus red instruments can also be used for basic noise measurements where the Sound Level is required, such as community and noise ordinance enforcement and testing of fire and emergency alarms.
Instrument Versions
The optimus red comprises the A, B, C and D variants, each of which can be specified as either a Class 1 or Class 2 instrument.
All of the instruments can measure Sound Level functions plus Lmax and Lmin with all frequency and time weightings.
- The A versions measure the Integrated noise levels such as Leq and LAE, C-A, Peak Sound Pressure and the virtual noise meters for OSHA/MSHA/ACGIH.
- The B versions provide the same functions as above but with the addition of Data Logging so that measurements can be downloaded to the NoiseTools software. The VoiceTag audio recording is available on the B versions.
- The C versions add Real Time Octave Band Filters to the functions of the B versions which can be used for the selection of hearing protection.
- The D variants add NR & NC values and curves directly on the instrument display.
Here are the currently available versions of the optimus red sound level meter:
- CR:162A Class 2 Integrating Sound Level Meter
- CR:161A Class 1 Integrating Sound Level Meter
- CR:162B Class 2 Integrating Sound Level Meter with data logging & VoiceTag™ audio note taking
- CR:161B Class 1 Integrating Sound Level Meter with data logging & VoiceTag™ audio note taking
- CR:162C Class 2 Integrating Sound Level Meter with real-time 1:1 octave band filters, data logging & VoiceTag™ audio note taking
- CR:161C Class 1 Integrating Sound Level Meter with real-time 1:1 octave band filters, data logging & VoiceTag™ audio note taking
- CR:162D Class 2 Integrating Sound Level Meter with real-time 1:1 octave band filters, data logging, NR/NC curves & VoiceTag™ audio note taking
- CR:161D Class 1 Integrating Sound Level Meter with real-time 1:1 octave band filters, data logging, NR/NC curves & VoiceTag™ audio note taking
Measurement Kits
Complete measurement kits are available for the optimus instruments which contain the instrument, an acoustic calibrator, windscreen, cables, batteries and accessories. The measurement kits contain all of the accessories needed to carry out a noise survey.
The optimus sound level meter measurement kits contain the following components:
- optimus Sound Level Meter
- CR:514 Class 2 or CR:515 Class 1 Acoustic Calibrator
- UA:237 90mm Windshield
- CK:300 Carrying Case
- User Manual & Certificates of Calibration
- USB Data/Power Cable & NoiseTools Software CD (Requires B or C Version to download measurements)
The specifications for the optimus red sound level meters are quite long and detailed. This information is available either on the product datasheet or from your local distributor. If you would like a more detailed specification, please contact us and we will be pleased to help.
Listed below is a summary of the main specification points for the optimus red sound level meters.
Applicable Standards
IEC 61672-1:2002 Class 1 or Class 2 Group X
IEC 60651:2001 Type 1 I or Type 2 I
IEC 60804:2000 Type 1 or Type 2
IEC 61252:1993 Personal Sound Exposure Meters
ANSI S1.4 -1983 (R2006), ANSI S1.43 – 1997 (R2007)
ANSI S1.25:1991
1:1 Octave Band Filters to IEC 61260 & ANSI S1.11-2004 (C & D variants)
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
Frequency Bands: 10 Octave Bands (31.5Hz to 16kHz, C & D variants)
Time Weightings
Fast, Slow & Impulse Measured Simultaneously
Display
High resolution OLED display. Ambient light sensor & illuminated keypad
Memory
4GB (B, C & D Versions), 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, C & D Versions)
Up to 30 seconds of audio notes with each measurement
Integrators
Three simultaneous “virtual” noise meters. Integrator 1 is preset to Q3 for Leq functions. Integrators 2 & 3 can be configured with the following:
Exchange Rate: 3, 4 or 5 dB
Threshold: 70dB to 120dB (1 dB steps)
Time Weighting: None or Slow
Criterion Level: 70dB to 120dB (1 dB steps)
Criterion Time: 1 to 12 hours in 1 hour steps
Integrator Quick settings
EU, OSHA HC & OSHA NC, OSHA HC & ACGIH,
MSHA HC & MSHA EC, Custom 1 & Custom 2
Measurement Functions
CR:162A & CR:161A
Displayed Functions
LXY, LXYMax, LXYMin, LXeq, LCPeak, LZPeak, LCeq-LAeq, LXE
Graph of Short LAeq, LCPeak
Integrators 2 & 3: TWA, Dose%, Est Dose%
Measurement Run Time
CR:162B & CR:161B
Displayed Functions
LXY, LXYMax, LXYMin,,LXeq, LCPeak, LZPeak, LCeq-LAeq, LXE, LAIeq
Graph of Short LAeq, LCPeak
Measurement Run Time
Integrators 2 & 3: TWA, Dose%, Est Dose%
Stored Functions
LXYMax & Time History of LXYMax
LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak
Time History of LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak, LAIeq
Integrators 2 & 3: LAVG , TWA. %Dose
Time History of LAVG
CR:162C & CR:161C
Displayed Functions
LXY, LXYMax, LXYMin, LXeq, LCPeak, LZPeak, LCeq-LAeq, LXE, LAIeq
Graph of Short LAeq, LCPeak
Measurement Run Time
Integrators 2 & 3: TWA, Dose%, Est Dose%
Real-Time Octave Band Filters
Stored Functions
LXYMax & Time History of LXYMax
LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak
Time History of LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak, LAIeq
Integrators 2 & 3: LAVG , TWA. %Dose
Time History of LAVG
Octave Bands: Overall Leq & Leq Time History for each band
Measurement Run Time
Time & Date of Measurement Start
CR:162D & CR:161D
Displayed Functions
LXY, LXYMax, LXYMin, LXeq, LCPeak, LZPeak, LCeq-LAeq, LXE, LAIeq
Graph of Short LAeq, LCPeak
Measurement Run Time
Integrators 2 & 3: TWA, Dose%, Est Dose%
Real-Time Octave Band Filters
NR & NC values & curves
Stored Functions
LXYMax & Time History of LXYMax
LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak
Time History of LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak, LAIeq
Integrators 2 & 3: LAVG , TWA. %Dose
Time History of LAVG
Octave Bands: Overall Leq & Leq Time History for each band
NR & NC values & curves
Measurement Run Time
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.
CR:161C Optimus Red Occupational Noise Meter
