Smart sensor AS824 mini digital sound noise level meter
৳ 5,500.00
Brand : Smart sensor
- Model : AS824
- mini digital sound noise level meter
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CompareDescription. Smart sensor AS824 mini digital sound noise level meter has 30~130 dBi range, 1/2-inch microphone, 30~130 dBa measuring level, 35~130 dBC accuracy, 31.5HZ ~ 8.5 KHz frequency range, 9V battery.
Features:
1. This unit was designed according to the IEC651 TYPE2 & ANSI S1.4 type2 for sound level meters
2. Instantaneous sound measure function
3. Measurement range: 30-130decibel
4. With two equivalent weighted sound pressure levels. A and C
5. Fast & Slow dynamic characteristic modes
6. AC and DCsigned output for requency analyzer level recorder, FFT analyzer, graphic recorder etc.
| Brand Name: | SMART SENSOR |
| Color: |
White |
| Material: | ABS Plastic |
| Digit & Resolution | 5 digits & 0.1dB Display: 0.5 secretary |
| Measuring Range: | 30~130dBA 35~135dBC |
| Accuracy | ±1.5dB |
| Frequency range: | 31.5Hz to 8.5K Hz |
| Linearity range: | 50dB |
| Frequency weighting: | A, C |
| Microphone | 1/2 inch Condenser Microphone |
| Standard | According to IEC651 TYPE 2 & ANSIS1.4 TYPE 2 |
| Time Weighting | Fast / SLow |
| Bar graph: | 50 dB scale at 1 dB step fro monitoring current sound pressure level display period: 50mS |
| Level ranges: | 30-80dB; 50-100dB; 60-110 dB; 80-130dB |
| Over indicate over range: | Under indicate less than lower limit for the range |
| AC output: | 0.707 Vrms at FS output impendance approx 600 ohm |
| DC output: | 10mV / dB output impedance approx 100 ohm |
| Max: Maximum hold / Auto Power Off | V |
| External power supply | V |
| Level Range Bar Graph | V |
| Range Selection | 4 modes |
| Range Over Indication / Battery Indication | V |
| Backlight Display / Max & Min Hold Function | V |
| Sampling Frequency | 2 times / sec |
| Self calibration time: | 10 secs(every turn on) |
| Operating condition | Temperature :0-40C ; Humidity: 10% to 80%RH |
| Storage Condition | Temperature: -10 to 60C ; Humidity: 10% to 70% RH |
| Packing Information | |
| Power | 9V battery (not included) |
| Product Net Weight | 150g |
| Product Size | 224*66*33mm |
| Packing | Gift box |
| Standard Quantity Per Carton | 24 |
| Standard Carton Size | 45*38*55cm |
| Standard Carton Gross Weight | 16.42kg |
| Packing Contents | 1PC AS824 1pc user manual 1pc DC cable 1pc Gift box |
| Diagram and LCD display | |
 |
1. Electret Condenser Microphone 2. LCD Display 3. Power Switch 4. Level range control switch: 30dB~80dB 50dB~100dB 60dB~110dB 80dB~130dB 5. Maximum value hold swithc. (MAX) 6. Frequency weighting select switch A: A weighting for general sound level measurements. C; C-weighting for checking the low frequency content of noise 7. Time weighting select switch Fast: For normal measurements Slow: For checking average level of fluctuating noise 8. AC output terminal: 0.707 Vrms Corresponding to each range step. 9. DC output terminal: output 10mV / dB 10. Calibration control 11. External DC 60V power supply terminal 12. Battery Door 13. Tripod mounting screw 14. Windscreen |
 |
LCD Display: 1. Level range 2. Instantanceous sound pressure level 3. Low battery mark. 4. Maximum value is held during measuring 5. Measure Value 6. Measure Unit 7. Frequency weighting A/C 8. Level range Bar graph 9. Rang over 10. Slow time weighting 11. Fast time weighting 12. Range under |
Calibration Procedures: (Pls use a Standard Acoustic Calibrator)
| 1. Make the setting: Display: SPL(dBA) Time/Weighting: Fast/Level range: 60~110dB /Measurement mode: MAX function disable | |
| 2. Insert the microphone carefully into to the 1/2 inch hole of the Calibration | |
| 3. Turn on the Calibrator and adjust the Protentiom eter in side the battery compartment of the unit (shown in the diagram 1), The level of the units ( show in the diagram 1), The level display will indicate the desired level(94.0) our products are all well calibrated before shipment (Recommended recalibration cycle; 1 year ) |
Operation guide:
| 1. Turn on power ( pls install battery first before power on) | |
| 2. Select the desired response and weighting, also select desired rang. | |
| 3. If weighting for general mosie sound level, pls select dBA. | |
| 4. If the sound source consists of the short brusts of only catching sound peak, set response to FAST, to measuring average sound level. use the slow setting | |
| 5. When MAX mode is chosen, The instrment captures and hold the maximum noise level. |
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