Class 1 Sound Level Meter CR:161A

Sound level meter for acoustic measurements in the workplace and occupational noise class 1 / approved PTB, LNE Applus+ / sound level function / Leq, Peak function / TWA, dose function / pause and back, clear

The Optimus Red CR:161A class 1 sound level meter has an industrial design, featuring the latest digital technology that provides ideal instrumentation for making acoustic measurements in occupational and industrial hygiene settings. With this sound level meter, you can conduct noise assessments and studies in the workplace for calculating noise exposure, selecting hearing protection, machinery noise testing, and general acoustic measurements.

This precision integrative sound level meter meets all regulations (class 1 EN/IEC 61672, ANSI S1.4-1983, ANSI S1.43-1997 EN/IEC61260, etc.) and complies with current regulations on LEGAL METROLOGY ITC 2845 / 2007.

Simultaneous real-time weightings: Slow, Fast, and Impulsive. Simultaneous RMS frequency weightings: A, C, and Linear (Z). Total unique measurement range: 20 to 140 dBA RMS (143.0 dBC Peak)

Features principales

- Easy handling and ergonomic design 

- Simultaneous measurement of all workplace noise parameters with two meters

   “virtuales” adicionales 

- Latest digital technology with high-resolution color OLED display and keyboard

   retroiluminado

- Measures up to 140 dB (A) and 143 dB (C) Peak with a unique measurement range 

- Pause and back-delete functions included 

- Long-lasting batteries 

- Measures up to 170dB with the optional MV:200EH microphone system

Technical specifications

Measurement function CR:161A

L_XY, L_XYMax, L_XYMin, L_Xeq, L_CPeak, L_ZPeak, L_APeak, L_Ceq – L_Aeq, L_XE, L_Aleq

L graph_Aeq, L_CPeak cortos

Integrators 2 and 3: TWA, Dose %, Dose Est %

Measurement duration time

Funciones guardadas

L_XYMax and history of L_XYMax, L_Aeq, L_Ceq, L_Zeq, L_CPeak, L_ZPeak, L_APeak, L_Aleq

History of L_Aeq, L_Ceq, L_Zeq, L_CPeak, L_ZPeak, L_APeak, L_Aleq

Integrators 2 and 3: L_AVG, TWA. %Dosis

History of L_AVG

Microphone

Instrument MK:224 class 1 pre-polarized

Microphone preamplifier

Removable preamplifier MV:200

Total measurement index

Unique range of 20 dB to 140 dB RMS

Background noise: <18 dB(A) Class 1

Frequency weighting

RMS and Peak: A, C, and Z measured simultaneously

Time weightings

Fast, Slow and Impulsive measures simultaneously

Pantalla

High-resolution OLED display

Ambient light sensor and illuminated keyboard

Data range from history (Global settings)

10 ms, 62.5 ms, 125 ms, 250 ms, ½ sec, 1 sec, 2 sec (user selectable)

Integradores

Three simultaneous "virtual" sound level meters. Integrator 1 is preset to Q3 for Leq functions. Integrators 2 and 3 can be configured with the following values: Change index: 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

Quick settings integrator

EU, OSHA HC and OSHA NC, OSHA HC and ACGIH MSHA HC and MSHA EC, Customize 1 and Customize 2

Measurement control

Pause and Back-Clear function with user-selectable duration

Applicable standards

IEC 61672-1:2002 Class 1 or Class 2 Group X

IEC 60651:2001 Tipo 1 |o Tipo 2| 

IEC 60804:2000 Type 1 or Type 2 

IEC 61252:1993 Personal noise exposure meters 

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

ANSI S1.25:1991 

1/1 octave band filters IEC 61260 and ANSI S1.11-2004

Power supply

4 pilas alcalinas tipo AA

Battery life

Normally 12 hours with AA alkaline batteries

Normally 20 hours with non-rechargeable AA lithium batteries 

The battery life depends on the type and the quality and brightness of the display

Conexiones

USB type B to PC, Multi-pin IO for external power and RS232

Tripod

Whitworth ¼’’ socket wrenches

Condiciones ambientales:

Temperatura

Operating temperature from -10 to +50ºC

Storage from -20 to +60ºC

Humedad

Up to 95% non-condensing RH.

Electromagnetic performance

IEC 61672-1:2002 e IEC 61672-2:2003

Except when modified by 

EN 61000-6-1:2007 and EN 61000-6-1:2007

Language options

English, French, German, and Spanish standard

Other language options also available

Dimensions

283 mm x 65 mm x 30 mm

Peso

300 g

Contents of the shipment

1 x CR:161A Sound Level Meter

1 x Protector anti-viento 

1 x USB data/power cable

1 x Calibration certificate

1 x CD Software NoiseTools

1 x User Manual