CR:800C Series Sound Level Meters


  • CR:800C Series – Data Logging Sound Level Meters


CR:800C Series Sound Level Meters

Key Features

Ideal for both Occupational and Environmental noise measurements
Available with Class 1 or Class 2 accuracy
Options of 1:1 and 1:3 Octave Band Filters
Data Logging of up to 1,300 measurements
USB data download to the NoiseTools software
Outdoor measurement kits available for unattended environmental noise monitoring


Technical Specifications

Applicable Standards
IEC 61672-1:2002 Class 1 or 2 Group X
IEC 60651:2001 Type 1 I or Type 2 I
IEC 60804:2000 Type 1 or Type 2
ANSI S1.4 with NK:70 Random Incidence Adaptor
1:1 & 1:3 Octave Filters to IEC 61260 Class 1 (where fitted)

Class 1 Instruments MK:224 pre-polarized Free-field 1/2? Condenser
Class 2 Instruments MK:216 pre-polarized Free-field1/2? Condenser
Random Incidence to ANSI S1.4 with NK:70 Adaptor

Microphone Preamplifier
Class 1 Instruments MV:200D Removable Preamplifier
Class 2 Instruments MV:200D Integral Preamplifier

Time Weightings
?F? (Fast), ?S? (Slow) & ?I? (Impulse) to IEC 61672-1:2002 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 excluding microphone
response. When either 1:1 or 1:3 Octave Band filters are selected the ?Z? weighting is used.

Measurement Range (Typical)
Broadband 21dB(A) to 140dB(A) Class 1 25dB(A) to 140dB(A) Class 2 143dB(C) Peak (70 to 140dB Range)
1:1 Octave Band Filters 19dB(Z) to 140dB(Z)
1:3 Octave Band Filters 14dB(Z) to 140dB(Z)

Noise Floor (Typical)
Broadband 18dB(A) Type 1, 20dB(A) Type 2
1:1 Octave Band Filters 12dB(Z) @ 1kHz 1:1 Octave Band
1:3 Octave Band Filters 7dB(Z) @ 1kHz 1:3 Octave Band

Available Measurements
The following metrics can be displayed for a recorded session and stored:
Broadband Mode
LAeq, LCeq, or LZeq
LAF, LAS, LAI, LCF, LCS, LCI, LZF, LZS or LZI (not stored)
LAFmax, LASmax, LAImax, LCFmax, LCSmax, LCImax, LZFmax, LZSmaxor 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 Noise Profile (LAeq, LCeq or LZeq)

Filter Mode
1:1 or 1:3 filter selected
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 MO:800/6 Factory Option

16Mbit memory allowing up to:
1300 broadband measurements
770 1:1 octave measurements
330 1:3 octave measurements
For example, broadband mode allows 12 days of 15 minute measurements to be stored.
Calibration records are automatically stored in the instrument memory.
Noise Profile (LAeq, LCeq or LZeq).
Short Leq (LAeq,LCeq, or LZeq).
Up to 12 days at 1 second acquisition with 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
Automatic Repeat From 2 to 999 measurements(broadband mode only)
Auto-synchronise to the clock.

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 time short Leq (broadband mode)
Graphical 1:1 and 1:3 Octave Band (recall mode only)
Recalled stored measurements
Measurement Range & Instrument settings
340 mm ? 75 mm ? 25 mm
450 g
2 ? 1.5 v Alkaline LR6/AA
Battery Life
Broadband Mode Typically >24 hours

Temperature Operating -10?C to +50?C
Storage -20?C to +60?C
Humidity Up to 95% RH Non Condensing
External Connections
USB Type B Data Out
Multipin I/O for optional connections
Unweighted AC Output via Multipin I/O Connector
External Power
12v-15v DC @ 100mA via Multi I/O Connector
CU:800C recommended (Specify UK, EU or US plug type)
The CR:800C is also powered directly from the USB connection to the PC.
Electromagnetic Performance
IEC 61672-1:2003
IEC 61672-1:2003
Except where modified by EN 61000-6-1:2007 & EN 61000-6-1:2007
Output Cables
Standard: ZL:100 USB to USB
Optional: ZL:812 AC Output Cable to Phono Connector
ZL:813 RS232 Output Cable

Software Support
Deaf Defier3 for Windows. (Version v3.3.0 or later)
The Deaf Defier3 for Windows requires Microsoft Windows 98SE or later
The Deaf Defier3 Software is supplied with no licensing restrictions. Updates can be
downloaded from the Cirrus Research plc website.
The CR:800C Series is provided with an standard 24 month warranty and an optional 10
year extended warranty. For details of this warranty please contact Cirrus Research plc
or your local distribu