5 Dosemeter Kit – IC-NK003

This system comprises either one or five industrial noise dosemeters for measuring Dose %, Projected Dose, Daily Exposure (Lepd) and True Peak in a single package. Ideal for large numbers of staff, making it easier and more cost-effective to initiate a wide ranging dosimetry programme.

Includes:

– 5x GA257B Personal Sound Exposure Meters
– GA601 Single Level Calibrator
– KA007 5 Meter Kit Case

GA257B :

– Applicable standards: IEC 61252-1:1993 (Personal Sound Exposure Meters)
– Microphone: Type 2 Pre-Polarised (13.2 mm) Electret Free-Field, Electret Condenser Microphone, 20Hz 8KHz 2dB; 32 dB 3 dB re 1V/Pa Custom pre-amplifier design.
– Display: Back-lit LCD panel (8×1 Characters), Alpha-Numeric display for measured results
– Measuring Range: 75 to 140
– Linear operating range (IEC61672-1): 67dB
– Noise floor: Typical A Weighting <32 dB(A) rms.
– Frequency weighting: A to IEC 61672-1:2002 and IEC 60651:1979+A1+A2
– Frequnecy range: 20 Hz to 8 kHz (including microphone)/1 Hz to 20 kHz (electrical characteristics)
– Instrument response: Simultaneous Peak and rms
– Measurement parameters: LEpd (Sound Exposure Level), PLEpd (Projected LEpd over 8 hours), DOSE% (LEpd compared to criterion level as %) PDOSE% (Projected DOSE% over 8 hours, DOHR (DOSE% per hour), Pa2h (LEpd displayed in Pascal units), Dose per hour, Zpeak (Max. Peak Level). Other Displays: Elapsed time, Overload, Battery Life
– Criterion level: The level at which the 8 hour DOSE% = 100%. User selectable between: 80dB, 85dB and 90dB
– Exchange rate: The rate at which the DOSE% doubles. User selectable between: 3dB and 5dB
– Calibration: Software controlled 91.0 to 120.0 dB (1kHz) in 0.1 dB steps
– Processing: A to D Converter: 12-bit
– Controller: 8MHz, micro-controller
– Power requirements: Batteries: 1 x 6LR61 (size PP3)
– Battery Life: >12 hours (alkaline batteries, continuous operation).
– Size weight: Dimensions: 60mm (width) x 35mm (depth excluding pocket clip) x 135mm (height)
– Microphone cable length: 800mm (including rubber sleeve and microphone)
– Weight: 220gms (including battery)