EEMART
02-9321860, 02-5091366
EEMART
02-9321860, 02-5091366
ST821 – เครื่องวัดระดับเสียง
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Technical data
Microphone: 1/2 polarization capacity microphone
Range: A-weighting: 30dB ~ 130dB
C- weighting: 35dB ~ 130dB
Measurement frequency range: 31.5Hz to 8kHz
Time weighting characteristics: FAST; SLOW
Calibration: 94dB
Data recording; 10
Display: LCD with 4 digits, 0.1dB resolution, sampling rate 1s
Bar graph: Scale range 50dB, 1dBresolution
Warming indicators: OVER (overload), UNDER(underload)
DC output: 0-2.5V, 25mV/dB
Ambient conditions: 0 ~ 40º C; 10-80%RH
Storage condition: -10 ~60º C, 10 ~70%RH
Power supply: 1x 9.0V, 6F22 batteries
Size: 220*73*35 mm
Weight: 290g (batteries included)
Packing: Gift box + PP Box
ST8080 – เครื่องวัดระดับเสียง
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Frequency range: 31.5Hz~4kHz
Measuring range: 40~130db (40~80dB, 50-90dB, 60-100dB, 70-110dB,90~130db)
Frequency weighting: A Type
Digital display: 4 digital
Resolution: 0.1 dB
Accuracy: ± 2dB
Time response: Analog bar: 125ms; Digital: 750ms
Auto power off: About 10 minutes idle
Special function: Auto power off; Data hold; MAX and MIN; Backlit; Sound OVER or UNDER display; Low battery indicator; Software calibrating.
Operating temperature: -10~40º C, 14~104° F
Battery life: Continuous work 180 Hours (without backlit )
Dimension: 162 x 52 x 25mm
Accessories included:
Free 1.5V( LR03 battery) x 3
Portable package
Users Manual
SL801A – เครื่องวัดเสียง
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Specifications:
Accuracy: 1.5dB (under reference conditions)
Measuring Level: 30-130dB (A)/35-130dB (C)
Frequency Range: 31.5Hz to 8.5KHz
Linearity Range: 50dB/100dB
Digital Display: 5 digits
Resolution: 0.1dB
Bar Graph: 50 dB
scale at 1 dB step for monitoring current sound pressure level display
Overload Indication: OVER/UNDER
Frequency Weighting: A and C
Level Ranges: 30-80dB, 50-100dB, 60-110dB, 80-130dB
Self Calibration Time: 3sec
Sampling Rate: 20 times/seconds
AC Signal Output: 0.707Vrms/ full bar graph, output impedance is about
DC Signal Output: 10mV/dB,output impedance is about 100ohm
Dynamic Characteristic: FAST (high speed)/SLOW (low speed)
Power Supply: 4x AA 1.5V battery or DC 6V 100mA (not include)
Microphone: 1/2" Electrinic Condenser microphone
Item dimensions: 256 x 70 x 35mm
Item weight: 238g
| Sound Level | 40 - 130 dBA |
| Accuracy | +/- 1.5 dB |
| Frequency range | 31,5 Hz … 8.5 kHz |
| Operating voltage | 9 V-Battery |
| Dimensions (WxHxD) | 55 x 135 x 35 mm |
| Weight | 120 g |
| Frequency | 31,5 Hz ... 8 kHz |
| Sound Level | A + C Weighting (LOW): 35 ... 100 dB;(HIGH): 65 ... 130 dB A + C Weighting (LOW): 35 ... 100 dB;(HIGH): 65 ... 130 dB ± 1,5 dB at 94 dB and Sound Level and 1 kHz sine wave |
| Operation voltage | 9 V Battery |
| Dimensions (WxHxD) | 64 x 251 x 40 mm |
| Weight | 250 g |
| Light | 20/200/2000/20.000 Lux; ± 5% + 10 dgt. - 0,01 Lux |
| Sound level | 35 ... 100 dB / 65 ... 130 dB; ± 3,5 dB - 0,1 dB (for A+C Weighting) |
| Humidity | 25 ... 95%; ± 5% - 0,1% |
| Temperature | -20°C ... +200/750°C; ± 3% + 2°C - 0,1°C (K-Type) |
| Operation voltage | 9V Battery |
| Dimensions (WxHxD) | 64 x 251 x 40 mm |
| Weight | 250 g |