Extech Instruments 407355 Guide de l'utilisateur télécharger pdf (Page 10)

407355-en-GB_v3.1 01/15

Specifications

Display Multi-function LCD

Units of measure dBA (‘A’ weighted decibels) for sound level

% DOSE for accumulated noise exposure

Measurement ranges 70 to 140dBA for sound level (SPL) measurements

0.01 to 9999 %DOSE for noise exposure surveys

Standards applied ANSI S1.25-1991 A-weighting; ISO-1999; BS 6402: 1983

Criterion level 80, 84, 85, and 90dB (selectable)

Threshold level 70 to 90dB in 1dB steps (selectable)

Exchange rate 3, 4, 5, and 6dB (selectable)

High level detector appears on LCD when measurement exceeds 115dBA

Peak flag PK appears on LCD when measurement exceeds 140dBA

Accuracy ±1.5dB

Frequency weighting ‘A’ weighting

Frequency response 31.5Hz to 8 kHz

Response time F (FAST) and S (SLOW) selectable

Datalogging capacity 8800 data sets

Operating Temperature 0 to 50

C (32 to 122

Operating Humidity 10 to 90% RH

Storage Temperature -10 to 60

C (14 to 140

Storage Humidity 10 to 75% RH

Battery power Four (4) 1.5V ‘AAA’ batteries

Battery life 40 hours (approx.)

Dimensions 106 (L) x 60 (W) x 34 (H) mm

4.2 (L) x 2.4 (W) x 1.3 (H)"

Weight Approx. 350g (12.3 oz) with batteries

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Extech Instruments 407355 Guide de l'utilisateur Page 10