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Digital Sound Level Meter R814
Feature
♦Electronic Condenser Microphone.
♦LCD Display.
♦Power switch.
♦Level range control switch:30dB~80dB;50dB~100dB;60dB~110dB;80dB~130dB.
♦Maximum value hold switch.(MAX)
♦Frequency weighting select switch.
A:A weighting for general sound level Measurements.
C:C- weighting for checking the low frequency content of noise.
♦Time weighting select switch. Fast: For normal measurements. Slow: For checking average level of fluctuating noise.
♦AC output terminal:0.707 Vrms Corresponding to each range step.
♦DC out put terminal:output 10mV/dB.
♦Calibration control.
♦External DC 9V power supply terminal.
♦Battery door.
♦Tripod mounting screw.
♦Windscreen.
♦Electronic Condenser Microphone.
♦LCD Display.
♦Power switch.
♦Level range control switch:30dB~80dB;50dB~100dB;60dB~110dB;80dB~130dB.
♦Maximum value hold switch.(MAX)
♦Frequency weighting select switch.
A:A weighting for general sound level Measurements.
C:C- weighting for checking the low frequency content of noise.
♦Time weighting select switch. Fast: For normal measurements. Slow: For checking average level of fluctuating noise.
♦AC output terminal:0.707 Vrms Corresponding to each range step.
♦DC out put terminal:output 10mV/dB.
♦Calibration control.
♦External DC 9V power supply terminal.
♦Battery door.
♦Tripod mounting screw.
♦Windscreen.
Keywords : Digital Sound Level Meters,
Introduction
| Specification | R814 | R824 | R844 |
| Measuring Range | 30~130dBA | 30~130dBA | 30~130dBA |
| 35~130dgBC | 35~130dgBC | 35~130dgBC | |
| Accuracy | ±1.5dB | ±1.5dB | ±1.5dB |
| Frequency Range | 31.5Hz~8.5KHz | 31.5Hz~8.5KHz | 31.5Hz~8.5KHz |
| Linearity Range | 50dB | 50dB | 50dB |
| AC/DC Output | √ | √ | √ |
| Low Battery Indication | √ | √ | √ |
| Over Range Indication | √ | √ | √ |
| Digit&Resolution | 5Digits&0.1dB | 5Digits&0.1dB | 5Digits&0.1dB |
| Time Weighting Selection | Fast/Slow | Fast/Slow | Fast/Slow |
| Microphone | 1/2inch Electret Condense Microphone | ||
| Frquency Weighting | A&C | A&C | A&C |
| Sound Measuring Level Selection | √ | √ | √ |
| Max Hold Function | √ | √ | √ |
| Sampling Frequency | 2times/sec | 2times/sec | 2times/sec |
| USB Transimission | √ | ||
| Calendar | √ | ||
| General Characteristics | |||
| Power | 9V Battery or DC Adapter | AA 6V(Alkaline or DC Adapter | AA 6V(Alkaline or DC Adapter |
| Product Weight | 178g | 300g | 300g |
| Product Size | 207mmx70mmx29mm | 265mmx70mmx35mm | 210mmx72mmx32mm |
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