Model : DT-815
DT-815
Sound Level Meter is designed for noise project, quality control,
illness prevention and cure and all kinds of environmental sounds
measurement. It is applied to the sounds measurement at factory, school,
office, traffic access and household etc.
Features:
1. This unit confirms to the IEC61672-1 CLASS2 for Sound Level
Meters.
2. MAX & MIN measurements
3. Over range display
4. Under range display
5. A & C Weighting
6. FAST & SLOW response
7. Digit LCD display with a resolution of 0.1dB,bargraph & white
backlight.
8. Readings memories
Specifications :
Standard applied
IEC61672 -1 Type2,ANSI S1.4 Type2
Accuracy
±1.4dB
Frequency rang
31.5Hz~8KHz
Dynamic range
50dB
Level ranges
LO: 30dB~80dB Med: 50dB~100dB
Hi: 80dB~130dB Auto: 30dB~130dB
Time weighting :
FAST ( 125ms ), SLOW ( 1s )
Microphone
1/2 inch electret condenser
microphone
Digital display
4 digits
Resolution
0.1dB
Reading display updata
2 times /sec.
Bargraph display updata
20 times /sec.
Alarm function
OVER is show when input is out of
range
Analog spar
Fast display of analog (20 times/
sec)
Data hold
50 sets
Maximum hold
Hold readings the Maximum Value,
with
decay < 1dB/3minutes.
Auto power off
Press the button one time for on
/off of
backlight,press the button continuously
until the number 3,2,1 showing on the
screen and then disappear for power off
Power supply
One 9V battery, 006P or IEC 6F22 or
NEDA 1604.
Power life
At least 30hours
operation temperature
and humidity
0C~40C,10%RH~90%RH
Storage temperature
and humidity
-10C~+60C,10%RH~75%RH
Dimensions
210(L)X55(W)X32(H)mm
Weight
230g(including battery)
Accessories:
9V battery, Carrying case and Gift box, Instruction
manual.
มิเตอร์วัดความดังของเสียงและเสียงสะท้อน
ระบบดิจิตอลสามารถบันทึก
ความจำได้ 50 ข้อมูล
มาตรฐาน
IEC 61672-1,CE,
IEC651, Type 2, ANSI S1.4 Type 2