NoiseMeters Limited CR800C User manual

NoiseMeters Limited
www.noisemeters.com
CR800C
Sound Level Meters
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Key Features
>Ideal for both Occupational and Environmental noise measurements
>Complies with the latest IEC 61672 standard as well as IEC 60651, IEC 60804 and ANSI S1.4
>Available with Class 1 or Class 2 accuracy
>Options of 1:1 and 1:3 Octave Band Filters
>1:1 Octave Band Filters to help in the selection of hearing protection using the Deaf Defier software
>1:3 Octave Band Filters for environmental noise measurements and tonal analysis
>Data Logging of up to 1,300 measurements, allowing for example over 12 days of 15 minute measurements, ideal for environmental
noisemeasurements
>USB data download to the Deaf Defier software
>Deaf Defier software supplied as standard to provide measurement reports, analysis and presentation with free online updates.
>AC Output for use with external analysis and recording equipment
>Outdoor measurement kits available for unattended environmental noise monitoring with optional remote access via GSM Modem
The CR800C Series is a range of high performance Sound
Level Meters that provide the functions and features
demanded by modern measurement standards and
guidelines, while being designed specifically for ease of
use.
From Noise at Work Risk Assessments to Vehicle Noise
Testing to Environmental Noise Measurements, the
CR800C Series provides a solution.
Data logging of the measured parameters is standard, and
up to 12 days of data can be stored. The Deaf Defier
software, which is supplied as standard, allows this
measurement data to be downloaded, assessed and
measurement reports created.
Available with Class 1 or Class 2 accuracy along with the
options of 1:1 & 1:3 Octave Band Filters, there is an
instrument to meet your noise measurement needs.
A range of accessories are available to complement the
CR800C series including outdoor measurement kits, power
supplies, microphone extension cables and software.
The instruments have been designed to be simple to use
whilst meeting all of the latest Standards for Sound Level
Meters.
Reliable, accurate and affordable, the CR800C Series
includes the ideal instruments for your noise measurement
applications.
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Occupational Noise Measurement Environmental Noise Measurement
>Simultaneous measurement of LAF, LAeq, LAFmax and
LCpeak
>Time history of noise levels
>Risk Assessment of Workplace Noise Levels
>Ideal for noise measurements in accordance with the Noise
at Work Regulations and EU Directive 2003/10/EC
>Measurements for the selection of hearing protection with
CR822C & CR821C using 1:1 Octave Band Filters as well
as with the CR832C & CR831C instruments
>Calculate Noise Exposures and create measurement
reports with the Deaf Defier Software
All Noise at Work regulations require the assessment of the
potential risk of hearing damage to employees, and the CR800C
series provides the essential parameters needed to comply with
these measurement standards and guidelines, such as Leq, LEP,d
(LEX,8h) and LCPeak.
Where the noise levels are above the limits set by occupational
noise regulations such as the Control of Noise at Work Regulations
in the UK, the provision of effective noise control measures and
hearing protection are often required.
All of the CR800C series, with the exception of the basic CR811C
and CR812C units, can provide 1:1 Octave Band measurements,
allowing the instrument to be used to determine the frequency
content of the noise, and therefore to assist in the provision of a
cost-effective solution.
The Deaf Defier3 software includes a database of hearing defender
products (PPE) which is used to provide a quick and reliable
solution to the selection of appropriate protection.
>Boundary noise measurements
>External noise impact assessments
>Machinery noise testing
>Motor-sport noise measurements
>Entertainment noise
For Environmental Noise measurements, the measurements
required differ from those for Occupational Noise, and all of the
CR800C instruments provide these parameters as standard.
The measurement of Lmax, Lmin, and five Ln values (such as L10,
L90 and L95) in addition to the Leq provide the measurement
functions needed to comply with measurement standards,
regulations and guidelines.
The Time History data stored by the instrument is often vital in the
assessment of environmental noise, allowing the CR800C series to
be used where a standard Sound Level Meter would not provide
sufficient detail of the noise climate. The environmental impact of
an operation or location can be assessed using this additional data.
Up to 12 days of 1 second Time History data can be stored.
The CR831C and CR832C instruments can also provide 1:1 and
1:3 Octave Band filters, allowing the instruments to be used to
identify and control noise sources that include distinct tones, which
often cause complaints, even when the overall noiselevels are low.
If noise measurements are to be made outdoors, there is a risk that
the sound level meter may be affected by rain and wind. The
Outdoor noise measurement kits protect the sound level meter and
microphone and provide power to the sound level meter thus
allowing noise measurements to be made in all weather conditions.
Noise measurement data can also be downloaded remotely if the
GSM Cellular Modem option is fitted to the outdoor measurement
kit.
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General Noise Measurements
>R&D noise measurements
>Production line noise testing
>Quality control
>Soundpowermeasurements
>Fire alarm testing
The CR800C series can be used in a wide range of general noise
measurement applications.
The provision of Lmax allows the instruments to be used for the
measurement of vehicle noise levels.
Optional microphone extension cables enable the microphone and
preamplifier to be located away from the Sound Level Meter
allowing measurements to be taken in confined areas and in
situations where interference from the operator would affect the
validity of the data. Product development and testing is an
application where this feature is often essential.
All of the CR800C instruments can provide an un-weighted AC
output which can be used in conjunction with other noise
measurement equipment and recording systems. This allows the
units to be used for both general purpose noise measurements as
well as more advanced applications.
Measurements
The CR800C series measure two different types of data,
Broadband and Frequency.
The Frequency data can be 1:1 Octave or 1:3 Octave depending
upon the configuration of the instrument. In addition to the
measured data, the instrument stores calibration records for later
download.
Broadband Measurements
The standard parameters stored by all of the CR800C series
include Leq , Lmax , Lmin, LCPeak, LE and 5 Ln values. In addition
to these standard measurements, the instrument can be configured
to store LIeq or LFTeq in place of LE.
The duration of the measurement can be either open-ended,
selected from a preset list or defined by the user as required, and
the measurements can also be set to automatically repeat a
specified number of times.
This function is essential for environmental noise applications
where the required measurement duration may be 15 minutes
repeating over a 24 hour period.
Time History
When making a Broadband measurement, the instrument
automatically stores a noise profile, or Time History, with the
measurement. This information is stored as a 1 second Short Leq.
Over 12 days of Time History data can be stored, allowing the
CR800C series to be used for logging long periods of data.
This information can be used, for example, to analyse noise events
and to identify individual noise sources, such as aircraft. When this
data is downloaded into the Deaf Defier software, measurement
reports can be created to display both the overall data and the
Time History information.
Frequency Analysis
When fitted with the 1:1 or 1:3 Octave Band filters, the CR800C
series can provide a sequential sweep through the filter bands, with
a minimum duration of 1 minute for the 1:1 Octave Band filters and
3 minutes for the 1:3 Octave Band filters. The sweep can be
automatic or manual as required.
The 1:1 Octave Band filters cover the range of 31Hz to 16kHz, and
the 1:3 Octave Band filters cover 25Hz to 16kHz.
The MO800/6 option can be fitted to the 1:3 Octave Band filter to
add a 20Hz and 20kHz filter band to the existing 1:3 Filter Bands.
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Measurements can be printed or copied to other programs for
additional reporting. All data from a Broadband measurement can
be exported in a wide range of formats for use in other applications.
Frequency Measurements
For Frequency measurements made using either the 1:1 or 1:3
Octave Band filters, the information is displayed as a bar graph,
with the numerical data also
shown for reference
along with the
measurement
time, date and
duration.
Comments and
notes can also be
entered for future
reference.
Individual Frequency
bands can be highlighted using
the cursor. The measurements
are always made by the
CR800C series using the Z
Frequency Weighting, but if required, the A and C Frequency
Weightings can be displayed.
The software can also calculate and display NR and NC values and
curves from 1:1 Octave Band data.
Hearing Protector Selector
Where 1:1 Octave Band measurements are available, the Deaf
Defier software can calculate the assumed protection from a range
of Hearing Protector products such as Ear Plugs and Hearing
Defenders.
The calculations are made using the frequency data from the
measurement, and the resulting information can be printed or
exported for later reference. The results can also be filtered to
remove, for example, products that do not reduce the noise level at
the ear to below 85dB(A).
The calculation can also include a +4dB “Real World” factor to take
account of the loss of protection when PPE is not worn correctly.
Updates for the Deaf Defier program and the Hearing Protector
database can be freely downloaded online.
Measurement Reports
The Deaf Defier software contains a number of simple,
preformatted measurement reports that can be used to present
measurement data.
Information about the measurement, such as the location, time,
date and comments, can be entered along with details of the
calibration of the sound level meter.
When the report is complete, the information can be printed or
exported in a range of formats including PDF, Microsoft Excel or
Microsoft Word.
All versions of the CR800C are supplied with the Deaf Defier
software program which provides the following functions:
>Download Data from a CR800C series Sound Level Meter
>Store measurements in folders to organise data
>Produce measurement reports and present data
>Enter comments, locations and notes for each measurement
>Display measurements individually or grouped in a tabular
format
>Select Hearing Protection (where 1:1 Octave Band
measurements are available)
>Calculate NR & NC figures (where 1:1 Octave Band data is
available)
>Print and export measurements
>Export measurement data for use in other programs
Software
Broadband Measurements
Broadband measurements are displayed in both a tabular and
graphical format. The numerical values for the measurement are
clearly listed and include the time, date, duration and measurement
range along with the Time and Frequency weightings used for each
parameter.
Where the data has been downloaded, the Time History graph is
also shown. A zoom function is provided to allow sections of the
graph to be viewed in more detail. Cursors can be placed on the
graph and the software will calculate the Leq between and outside
ofthesemarkers.
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Sound Level Meter Measurement Kits
The CR800C series can be supplied in a measurement kits which
include all of the accessories required to operate the instrument.
A measurement kit is the recommended way to purchase a Sound
Level Meter as it also contains a suitable Acoustic Calibrator. All
noise measurement equipment should be calibrated regularly to
ensure that it is operating and measuring correctly.
The standard measurement kit
includes the following components:
>CR515 or CR514 Acoustic
Calibrator
>UA237 Windshield (90mm)
>CK250 Carrying Case
>Deaf Defier Software
>USB Data Cable
>Operating Manuals
>Certificates of Calibration
>Batteries
The measurement kits for the the Class 1 Sound Level Meters
(CR811C, CR813C, CR821C & CR831C) are supplied with the
Class 1 CR515 Acoustic Calibrator. The Class 2 Sound Level
Meters (CR812C, CR822C and CR832C) are supplied with the
CR514 Class2 Acoustic Calibrator.
The CK250 Carrying Case can also hold a microphone extension
cable and protects the Sound Level Meter and Acoustic Calibrator
from damage during transit and storage.
Weatherproof Outdoor Measurement Kits
Where measurements are to be made outdoors, the Sound Level
Meter should be protected from rain and wind.
If the measurements are to be made over a short
period, and the weather conditions are fine, the
Sound Level Meter can be mounted on a tripod,
and the UA237 Windshield used to reduce wind
induced noise.
If the measurements are to be made over a
longer period, or if the weather conditions cannot
be guaranteed, an Outdoor Measurement Kit
should be used. The CR800C series can be used
with two different Outdoor Measurement Kits, the
CK408C and CK508C.
Both of these kits provide
a secure, weatherproof
enclosure for the Sound
Level Meter and the
microphone as well as a
rechargeable battery pack
to power the sound level
meter.
The CK508C Lightweight Outdoor Kit has been designed to be
used for short term measurements, such as overnight, whilst the
CK408C Outdoor Kit has been designed for longer term use.
The Weatherproof case used for both of the outdoor measurement
kits contains the same accessories included in the standard
measurement kit. Space is provided to
hold a sound level meter, acoustic
calibrator, a standard 90mm windshield,
software CD, batteries and operating
manuals.
Please note that Class 2 versions of the
CR800C require the MO800/5 Remote
Preamplifier option before they can be
used with the Outdoor Measurement
Kits.
GSM Cellular Modem Option
In situations where an outdoor
measurement kit is used, it is
often useful to be able to
access the measurement data
stored by the instrument from
a remote location.
To allow for this, the outdoor
measurement kits can be
fitted with a GSM Cellular
Modem. When this option is fitted, the Deaf Defier software can
connect to the sound level meter and download measurement data
over a GSM network. External power can be connected to the
outdoor kit to allow the instrument to run for longer periods.
Safety Officer’s Noise Measurement Kits
The CR800C Sound Level Meters are also available as part of a
Safety Officer’s Noise Measurement Kit.
These kits provide a complete noise measurement solution and
include a sound level meter along with a number of the Cirrus
doseBadge Personal Noise Dosemeters.
The sound level meter can be
selected from any of the
CR800C range to meet the
needs of the user. The
doseBadge units can be either
the standard CR110A
instruments or the Intrinsically
Safe CR110AIS units.
The unique combination of a
CR800C Series sound level
meter and the doseBadge
personal noise dosemeter
allows almost any noise
measurement situation to be
covered.
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Specifications
Applicable Standards
IEC 61672-1:2002 Class 1 or 2 Group X
IEC 60651:2001 Type 1 or Type 2-IEC 60804:2000 Type 1 or Type 2
ANSI S1.4 with NK70 Random Incidence Adaptor
1:1 & 1:3 Octave Filters to IEC 61260 Class1 (where fitted)
Microphone
Class 1 Instruments MK224 pre-polarized Free-field 1/2” Condenser
Class 2 Instruments MK216 pre-polarized Free-field 1/2” Condenser
Random Incidence to ANSI S1.4 with NK70 Adaptor
Microphone Preamplifier
Class 1 Instruments MV200D Removable Preamplifier
Class 2 Instruments MV200D Integral Preamplifier
Time Weighting
‘F’ (Fast), ‘S’ (Slow) & ‘I’ (Impulse) to IEC61672-1:2002 Class 1 or 2
Frequency Weighting
Channel 1 ‘A’, ‘C’or ‘Z’-Channel 2 ‘C’ for Peak
Z weighting is a flat frequency response of 8Hz-20kHz ±1.5dB
Measurement Range (Typical)
Broadband 21dB(A) to 140dB(A) Class1
25dB(A) to 140dB(A) Class2
143dB© Peak (70 to 140dB Range)
1:1 Octave Band Filters 19dB(Z) to 140dB(Z)
1:3 OctaveBandFilters 14dB(Z) to 140dB(Z)
Noise Floor (Typical)
Broadband 18dB(A) Type1, 20dB(A) Type2
1:1 Octave Band Filters 12dB(Z) @ 1kHz
1:3 Octave Band Filters 7dB(Z) @ 1kHz
Available Measurements
The following metrics can be displayed and stored:
Broadband Mode
LAeq, LCeq, or Lzeq
LCPeak
LAF, LAS, LAI, LCF, LCS, LCI, LZF, LZS or LZI (not stored)
LAFmax, LASmax , LAImax, LCFmax , LCSmax , LCImax , LZFmax, LZSmax or LZImax
LAFmin, LASmin , LAImin, LCFmin, LCSmin, LCImin, LZFmin, LZSmin, LZImin
LAE, LCE, or LZE, LAIeq, LCIeq, or LZIeq, LAFTeq
L0.1 to L99.9 (five simultaneous user-selected values available)
Date and time, 1 second Short Leq NoiseProfile (LAeq, LCeq or LZeq)
Filter Mode
Filtered LZS, LZF or LZI (not stored)
Filtered LZeq (stored), LAeq, LCeq, or LZeq (stored)
Date and time
Frequency Bands (Nominal Frequencies)
1:1 Octave Band 31Hz to 16kHz
1:3 Octave Band 25Hz to 16kHz.
20Hz & 20kHz 1:3 Octave Band with MO800/6 Factory Option
Memory
1300 broadband measurements
770 1:1 octave measurements
330 1:3 octave measurements
Eg. 12 days of 15 minute broadband measurements stored.
Noise Profile (LAeq, LCeq or LZeq)
Short Leq (LAeq, LCeq, or LZeq).
Up to 12 days at 1 second acquisition. 2 second factory set option.
Automatic Measurements
The unit can be set to record and store data over fixed times of:
1 minute 5 minutes
10 minutes 15 minutes
30 minutes 1 hour
8 hours 12 hours
or a user defined period
Auto Repeat From 2 to 999 measurements (broadband mode only)
Auto-synchronise to the clock.
Display
Graphical LCD with Quasi-Analogue Display
Selected measurement parameter with level
Warnings for Overload, Under-Range
Battery Level & External Power Indicators
Time & Frequency Weighting
Elapsed measurement time
Real timeshortLeq(broadbandmode)
Graphical 1:1 and 1:3 Octave Band (recall mode only)
Recalledstoredmeasurements
Measurement Range & Instrument settings
Dimensions
340 mm × 75 mm × 25 mm
Weight
450 g
Batteries
2 ×1.5v Alkaline LR6/AA
Battery Life
Broadband Mode Typically > 24 hours
Environmental
Temperature Operating -10°C to +50°C
Storage-20°Cto+60°C
Humidity Up to 95% RH Non-Condensing
External Connections
USB Type B Data Out
Multipin I/O for optional connections
Outputs
Unweighted AC Output via Multipin I/O Connector
External Power
12v-15v DC @ 100mA via Multi I/O Connector
CU800C recommended (Specify UK, EU or US plug type)
Can be powered directly from the USB connection to the PC.
Electromagnetic Performance
IEC 61672-1:2003
IEC 61672-1:2003
Except where modified by EN61000-6-1:2007 & EN61000-6-1:2007
Output Cables
Standard: ZL100 USB to USB
Optional: ZL812 AC Output Cable to Phono Connector
ZL813 RS232 Output Cable
Software Support
Deaf Defier for Windows. (Version v3.3.0 or later)
The Deaf Defier for Windows requires Microsoft Windows 98 SE or
later
The Deaf Defier Software is supplied with no licensing restrictions.
Updates can be downloaded from the Internet.
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Ordering Information
The CR800C series can be ordered with a variety of features. The table below shows the Sound Level Meter and Measurement Kit
referencenumbers:
Instrument Measurement Kit Description
CR811C CK811C CR:811C Class 1 Sound Level Meter
CR812C CK812C CR:812C Class 2 Sound Level Meter
CR821C CK821C CR:821C Class 1 Sound Level Meter with 1:1 Octave BandFilters
CR822C CK822C CR:822C Class 2 Sound Level Meter with 1:1 Octave Band Filters
CR831C CK831C CR:831C Class 1 Sound Level Meter with 1:1 & 1:3 Octave Band Filters
CR832C CK832C CR:832C Class 2 Sound Level Meter with 1:1 & 1:3 Octave Band Filters
CR813C CK813C CR:813C Class 1 Sound Level Meter
Outdoor Measurement Kits
CK408C Heavy duty Outdoor Measurement Kitfor CR811C, CR813C, CR821C & CR831C
CK508C Lightweight Outdoor Measurement Kit suitable for CR811C, CR813C, CR821C & CR831C
CK408/811 Complete Heavy duty Outdoor Noise Measurement Kit including CR811C & CR515 Acoustic Calibrator
CK508/811 Complete Lightweight Outdoor Noise Measurement Kit including CR811C & CR515 Acoustic Calibrator
Options for the Outdoor Measurement Kits
MM801C Factory fitted GSM Modem Option for Outdoor Measurement Kits with ZL:810 external 12v power cable
ZL810 External 12v Battery Power Connector for Outdoor Kits
Factory Fitted Upgrades
A range of options are available to enhance the performance of the CR800C series. These options can also be fitted when an instrument is
returned for service and recalibration. These options include:
MO800/1 Factory upgrade from Class 2 to Class 1
MO800/2 Factory upgrade from Broadband to include additional 1:1 Octave Band Filters
MO800/3 Factory upgrade from Broadband to include additional 1:1 & 1:3 Octave Band Filters
MO800/4 Factory upgrade from 1:1 to 1:1 & 1:3 Octave Band Filters
MO800/5 Factory upgrade-Remote Preamplifier for Class 2 Instruments
MO800/6 Factory upgrade -Addition of 20Hz & 20kHz 1:3 Octave Band Filters to CR:832C or CR:831C
A range of optional accessories are available for the CR:800C Series.
Microphone Extension Cables Output Cables
ZL202 2m microphone extension cable Standard: ZL100 USB to USB
ZL205 5m microphone extension cable Optional: ZL812 AC Output Cable to Phono Connector
ZL21010mmicrophone extension cable ZL813 RS232 Output Cable
ZL215 15m microphone extension cable ZL814 Multi I/O Interface
ZL:22020mmicrophone extension cable
Mains Power Supply
CU800C Mains Power Supply. Specify UK, Eu or USA type plug.
NoiseMeters Limited
West End, Muston, North Yorkshire
YO14 0ES, England
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.noisemeters.co.uk
NoiseMeters USA
14781 Memorial Drive, Suite #2174
Houston, TX 77079, USA
Toll Free: 888 206 4377
Fax: [phone]
Email: inf[email protected]
Web: www.noisemeters.com
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