Digital Sound Level Meter - GM1356
? Measuring range: 30~130 dBA, 35~130 dBC
? Accuracy: ±1.5 dB
? Resolution: 0.1 dB
? Frequency response: 31.5Hz ~8.5KHz
? Measuring level: 30~80, 50~100, 60·110, 80~130, 30~130?
? Frequency weighting characteristic: A & C
? Digital display: 4 digits?
? Sampling rate: 2times/second
- Model Number: GM1356
- Data Sheet:
- Quantity:
- - +
Product Specification
GM1356 Digital Sound Level Meter Introduction
This unit has been designed to meet the measurement requirement of noise engineers, noise quality control and health prevention in various environments, such as noise measurement in factory, office, traffic road, family and all other noise measurement applications.
GM1356 Digital Sound Level Meter Features
? This unit was designed according to following standards:
a. International electrician committee standard: IEC PUB 651 TYPE2
b. US national standard: ANSI S1.4 TYPE2
? Accuracy up to +/-1.5dB
? Measurement range is 30 to 130dB
? Fast/Slow Time weigting selection
? Automatic backlight
? The maximum value holding function
? Auto power off 10 minutes
? A/C Frequency weighting selection
? Both AC and PWM signal output are available
? Calendar function
? 4700 data record function
? Connect with the PC through USB, provides data record downloading, real-time data sampling analysis, and printing graph&data functions.
GM1356 Digital Sound Level Meter Specifications
Calibration sound source
94dB@1KHz
Measurement range
30~130dBA, 35~130dBC
Accuracy
±1.5dB (reference sound pressure standard, 94dB@1KHz)
Frequency response
31.5Hz~8.5KHz
Resolution
0.1dB
Measuring level
30 to 80, 50 to 100, 60 to 110, 80 to 130, 30 to 130
Dynamic range
50dB/100dB
Overload indication
OVER / UNDER
Frequency weighting characteristic
A and C
Digital display
4 digits
Analogy bar graph
1dB/1 bar graph
Sampling rate
20times/second
AC signal output
4Vrms/ full bar graph, output impedance is about 600 ohm
PWM signal output
Duty cycle =(0.01 x db value)/3.3 x 100%
Dynamic characteristic
FAST (high speed)/SLOW (low speed)
Calendar accuracy
±30seconds/day
Data storage quantity
4700
The maximum value holding
MAX
Auto power off
10 minutes without operation
Microphone
1/2inch polarization capacitance microphone
Power supply
6V (4PCS 1.5V Alkline battery)
Dimension
70x35x256mm
Weight
244G (Without battery)
Battery life
20h continuous use(Alkaline batteries)
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