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RION – Noise Dosimeter NB-14

Workplace Noise Measurements for Industrial Safety and Health

The NB-14 noise dosimeter, measures noise exposure for an individual working in a noisy workplace. Measuring and managing noise exposure for individual workers enable early detection and treatment of noise-induced hearing impairment,the adoption of personal hearing protection equipment such as earplugs and earmuffs,and the introduction of effective measures to reduce noise at the source.

Noise Dosimeter

Model:

NB-14

Maker:

RION

Noise Dosimeter NB-14

Specifications NB-14

 

Applicable standards

IEC 61252:1993+AMD1:2000+AMD2:2017

IEC 61672-1: 2013 class 2

JIS C 1509-1: 2017 class 2

VCCI class B

CE Marking

 ・EMC Directive 2014/30/EU

 ・RoHS Directive 2011/65/EU

UKCA Marking

China RoHS 

Measurement functions

(simultaneous measurement and processing)

Equivalent continuous A-weighted sound pressure level

Equivalent continuous C-weighted sound pressure level

C-weighted peak sound level

Percentage of the legal limit of a physical quantity of exposure DOSE

Microphone

UC-52

Store cycle

1 sec.

Measurement level range

Equivalent continuous A-weighted sound level 58 dB to 143 dB

Equivalent continuous C-weighted sound level 58 dB to 143 dB

C-weighted peak sound level 75 dB to 146 dB

Frequency range of measurement

20 Hz to 8 kHz

Display

Power supply status, measurement status, overload/under-range bar graph (Percentage of the legal limit of a physical quantity of exposure DOSE)

Internal memory

Stores approximately 48 hours’ worth of measurement data

Power

Built-in lithium-ion rechargeable battery (secondary battery)

Continuous operating time: 12 hours or more from a fully charged state (within the operating temperature range)

Operating temperature/ humidity range

Temperature: -10°C to 50°C

Humidity: 10% to 90% RH (no condensation)

Size and weight

85(H)×43(W)×22(D)mm

Approx. 72 g (excluding attachment holder)

Dustproof and waterproof performance

IP54 (expect microphone)

Accessories

USB Cradle for Battery Charging and Communication for NB-14 *1, *2

Dedicated windscreen

Alligator clip holder

*1 Allows setting for the NB-14 to be made from a computer and transfers the measurement data to the computer. NB-14 is attached to the charging part, and the USB Type-C to Type-A cable(computer side)is connected to the charging part.

*2 A separate charger (commercially available) is required for charging. Voltage and current required for charging: 5 V, 185 mA

Options

Sound Calibrator(NC-75)

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