Cirrus
Optimus Red Sound Level Meters
Key Features
Includes everything you need for occupational noise measurements
Large screen makes the data incredibly easy to read
Lightweight and easy-to-hold shape designed for ease of use
Available as either a Class 1 or a Class 2 instrument
No complicated setup procedure – just switch on, calibrate and start measuring
Bluetooth connectivity, allowing you to use your device with a compatible smartphone
Technical Specifications
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
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)
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
Frequency Bands: 10 Octave Bands (31.5Hz to 16kHz, C & D variants)
Time Weightings:
Fast, Slow & Impulse Measured Simultaneously
Display:
High resolution 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
Bluetooth:
BLE compatible with Android and iOS devices.
Cirrus mobile applications available from Google Play and the App Store
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 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+J3
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)
Others
N/A