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Chi Tiết Sản Phẩm

Máy đo độ ồn

 MÁY ĐO ĐỘ ỒN

SOUND METER Ega Master 51263

 

  1. General Specifications

Display: 3 1/2 digits, 1999 maximum Overloading:

Under range displays UNDER Over range displays OVER Battery Deficiency:

Drop Test: 1 meter pass Battery: 4 x 1.5V batteries (AA)

Battery Life: Typical 20 hours continuous Dimension: 273 x 69 x 39mm Weight: around 386 g (including batteries)

  1. Environmental Requirements

For indoor use only.

Altitude: 2000m Temperature and humidity:

   Operating:

0°C ~30°C (<80%R.H)

30°C ~40°C (<75%R.H)

40°C ~50°C (<45%R.H)

   Storage:

-20°C ~ +60°C (<80%R.H)

Safety/ Compliances:

EN61326:1997 + A1:1998 + A2:2001 +A3:2003, EN61672-1: 2002 Class 2 and IEC60641:1979 Type 2, ANSI S1.4:1983 Type 2 Certification: C€

Accuracy:±(a% reading + b digits).guarantee for 1 year. Operating temperature: 23°C±5°C .

Relative humidity:<80%.

Temperature coefficient: 0.1 x (specified accuracy) / 1°C

DECIBEL DB

 

 

 

 

Function

Range

Resolution

Accuracy

Remarks

A-Weighting and C-Weighting

30~80dB

50~100dB

60~110dB

80~130dB

0.1dB

±1.5dB

Frequency

Response

31.5~8kHz

Sampling Rate

FAST

 

 

Sampling Time: 125 microsecond

SLOW

 

 

Sampling Time: 1 second

Analogue Bar Graph

30~130dB

1dB

 

1 dB per scale, Sampling time: 200 times per second

 

Overloading

 

 

 

Over range display: OVER

Under range display: UNDER

DC analogue signal output

Output

impedance

around

1000, 10mV/dB

 

 

Has input terminal

 

Output

impedance

around

6000, 0.707V/ each scale

 

 

Has input terminal

Power (HOLD)

 

 

 

Turn on and off the Meter and data holding

LEVEL (AUTO)

 

 

 

Selecting auto and manual ranging

A/C (RECALL/ CLR)

A-Weighting and

C-Weighting

selection

 

 

RECALL/CLR. Press to recall and clear data

FAST/SLOW

(STORE/BL)

Selection of fast or slow sampling rate and turn on and off of display backlight

 

 

Press to store data

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