Cirrus CR151B Optimus黄色1级声级计 (20~140 dB, Data Logging)

- Applicable Standards

IEC 61672-1:2013 Class 1

IEC 61672-1:2002 Class 1 

IEC 60651:2001 Type 1 I 

ANSI S1.4 -1983 (R2006), ANSI S1.43 - 1997 (R2007)

ANSI S1.25:1991

- Microphone

Class 1 MK:224 pre-polarized, 

- Microphone Preamplifier: MV:200 Removable Preamplifier (All versions)

- Total Measurement Range: 

20dB to 140dB RMS Single Range

Noise Floor:, <21dB(A) Class 2

- Frequency Weightings : RMS: 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

- 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)

- 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.

Datasheet