Data Logger Sound Level Meter (SM-841)
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Description
Data Logger Sound Level Meter (SM-841)
Technical Specification;
| Applied standard | IEC61672-1 CLASS2 |
| Accuracy | ±1.4dB |
| Frequency range | 31.5Hz～8kHz |
| Dynamic range | 50dB |
| Measuring level range | Lo：30dB～80dB |
| Med：50dB～100dB | |
| Hi： 80dB～130dB | |
| Auto:30dB～130dB | |
| Frequency weighting | A & C |
| Time weighting | FAST 125ms;SLOW ( 1s ) |
| Microphone | 1/2 inch electrets condenser microphone |
| Max Hold | MAX |
| Min Hold | MIN |
| HOLD: | Hold the readings |
| Alarm function | “OVER” is when input is more than upper limit of range. |
| “UNDER” is when input is less than lower limit of range. | |
| Analog output | AC/DC outputs from earphone outlet
AC=1Vrms ，DC=10mV/dB |
| Data recording | PC real-time monitoring and recording |
| Auto power off | Meter automatically shuts down after approx. 15 minutes inactivity. |
| Power supply | One 9V battery, 006P or IEC 6F22 or NEDA 1604. |
| Battery life | at least 30 hours |
| Operating conditions | -20℃～60℃; 10％RH～90％RH |
| Storage conditions | -20℃～60℃; 10％RH～75％RH |
| Dimension
(L*W*H) |
252*66 *33 mm |
| Weight: | 262g |
◆Comply with IEC61672-1 CLASS2 standard
◆ST/SLOW
◆Analog AC/DC outputs for connection to frequency analyzer or X-Y shaft recorder
◆PC real-time monitoring and recording
◆4digits LCD display with a resolution of 0.1dB
◆2 times/second
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