คำอธิบาย
Features:
- Measures sound levels of machinery or an environment
- Big (2.5 in. diagonal) front-panel green backlit LCD is easy to read
- Makes measurements in auto ranging mode or within a manually settable range
- Displays maximum and minimum readings and holds any reading
- Performs automatic data logging at sampling time settable from 1 second to 9 hours
- Also supports manual logging and changing of card storage location
- Auto power off function
Packaging Include:
- Hard carrying case
- Sound wind shield ball
- 2 GB SD memory card
- User’s manual
Specifications:
| Specifications: | |
| Embedded Microcontroller | Custom single-chip LSI device |
| Display Type | LCD with green backlight |
| Display Size | 2.05 x 1.5 in. (52 x 38mm) |
| Parameter Measured | dB |
| Frequency Range | 31.5 Hz to 8 kHz |
| Measurement Range | 30 to 130 dB in autoranging mode User can also select fixed range of 30 to 80 dB, 50 to 100 dB, or 80 to 130 dB |
| Measurement Weighting | By frequency: frequency weighing uses “A” or “C” standard By time: time weighting is fast or slow (200 ms or 500 ms response time) |
| Measurement Accuracy | With “A” frequency weighting: ± 3.5 dB @ 31.5 Hz, 2. 5 dB@ 63 Hz, 2 dB @ 125 Hz, 1.9dB @ 250 Hz, 1.9 dB @ 500Hz, 1.4 dB @ 1 kHz, 2.6 dB@ 2 kHz, 3.6 dB @ 4 kHz, 5.6 dB @ 8 kHz |
| Measurement Resolution | 0.1 dB |
| Data Logging Sampling Time | 1 second to 1 hour |
| Settable Parameters | Date, time, auto power off, beep sound, sampling time, decimal point or comma decimal division, “A” or “C” frequency weighting, fast or slow time weighting |
| Storable/Recallable Readings | Maximum, minimum |
| SD Card Capacity | 1 GB to 16 GB |
| Operating Temperature | 32° to 122°F (0°to 50°C) |
| Operating Relative Humidity | 0 to 85% |
| Power Supply | Six Alkaline “AA” batteries or optional 9-VDC AC adapter |
| Power Consumption | 8 mADC (normal operation, with backlight off and SD card not saving data) 30 mADC with backlight on and card saving data 44 mADC with backlight on and card saving data |
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