AS854数字声级计 AS824数字噪音计Digital noise meter

AS824 Digital noise meter digital noise meter

Product features

Sound level meter is also called (noise) is the basicinstrument in measuring noise. In general by thecondenser microphone, amplifier, attenuator, amplifier,frequency sound level meter power network and effective value indicator. Principle of sound level meter is: a microphone for converting sound into electrical signals,and then by the preamplifier transform impedancematching, the microphone and attenuator. Amplifier output signal to the weighting network, the signalfrequency weighting (or the external filter), and then by the attenuator and amplifier to amplify the signalamplitude, and finally through digital processor, display the corresponding value in the LCD.

Technical parameters

Sensor

1/2 inch capacitive microphone

Measuring range

30~130dB

Accuracy of measurement

± 1.5dB

Frequency response

31.5HZ~8.5KHZ

Frequency weighting

A/C

Data communication

-

Data analysis

-

Data storage

-

AC\DC signal output

Yes

Low power tips

Yes

Overload tips

Yes

Resolution

0.1dB

Dynamic characteristic selection

Fast/Slow

The maximum locking

Yes

Packaging specifications

Power Supply

9V battery

Net weight of the product

225g

Product size

221*66*33mm

Manner of packing

The color box packaging

Standard external tank capacity

40pcs

Standard carton size

52.5*40.0*49.0cm

Standard carton gross weight

12.5kg

上海-浙江-杭州-江苏-南京-无锡-苏州-北京-天津-重庆-沈阳-长春-吉林-哈尔滨-石家庄-唐山-西安-太原-济南-南京-杭州-成都-贵阳-昆明-西藏-拉萨-新疆-乌鲁木齐-内蒙古-呼和浩特-包头-银川-合肥-福州-南昌-武汉-长沙-南宁-海口-河北-秦皇岛-张家口-保定-廊坊-唐山-山东-青岛-淄博-烟台-威海-辽宁省-大连-鞍山-抚顺-丹东-黑龙江-大庆-齐齐哈尔-牡丹江-佳木斯-吉林省-延吉-四平-山西省-大同-长治-晋城-四川-攀枝花-自贡-宜宾-雅安-上海-浙江-杭州-厦门-宁波-昆山-嘉兴-湖州-常州-保定-锦州-湛江-辽宁-云南-陕西-青海-银川-北海-温州-常州-无锡-苏州-南京-镇江-扬州-南通-合肥-徐州-常熟