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Specification
| Display: | 3½ digits LCD |
|---|---|
| Range: | 6 ranges in 10 dB step: 30 ~ 80 dB, 40 ~ 90 dB, 50 ~ 100 dB, 60 ~ 110 dB, 70 ~ 120 dB, 80 ~ 130 dB |
| Auto Range: | 30 ~ 130 dB |
| Accuracy: | ±1.5 dB |
| Frequency: | 31.5 Hz to 8 KHz |
| Microphone Size: | 6 mm (diameter) Electric Condenser Microphone |
| Measurement Weightings: | Level A: 30 dB ~ 130 dB Level C: 35 dB ~ 130 dB |
| Response: | Fast - readout is maximum value @0.2 seconds Slow - readout is maximum value @1.5 seconds |
| Output Signal: | AC - 0.707 Vrms at full scale DC - 10 mV per dB |
| Quasi-Analog Bar Indicator: | 1 dB display steps, 50dB display range, updated every 50 ms |
| Operating Temperature: | 32 ~ 122°F (0 ~ 50°C) |
| Operating Humidity: | 10 ~ 90% Relative Humidity |
| Power Supply: | One 9V battery (approximate life: 20 hours alkaline) |
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Calculates SPL and LEQ Sper Scientific’s Integrating Sound Datalogger measures sound pressure level (SPL) according to A or C weighting and integrates the weighted SPL over an established length of time, such as an 8-hour workday, to calculate cumulative sound exposure (LEQ). Test parameters are simultaneously displayed on a large, bright, backlit display, featuring 0.1 dB resolution and a bar graph. Up to 64,000 data records can be stored in the meter, saved, graphed, and processed on a computer through the USB interface and included software. The bidirectional USB port and software also enable control of the meter via its on-screen image. Features include SPL and LEQ sound level readings, fast and slow time weighting, A and C frequency weightings, and over-limit and under-limit alarms. A single dynamic 30 to 130 dB range eliminates the need to manually select ranges and prevents data errors during range changes in auto-ranging models. The meter complies with IEC 61672-1 Class 2, ANSI S1.4 Type 2 standards. Calibrate in compliance with OSHA using Acoustical Calibrator 850016. Comes in a foam-lined protective carrying case, complete with a windscreen, USB computer connection cable, software, instructions, calibration tool, recorder output plug, and 4 AA batteries, which provide about 30 hours of use. The optional microphone extension cable enables remote measurements. N.I.S.T. Traceable Certificate of Calibration available.
Dimensions: 10¾" × 3½" × 1½" (273 × 89 × 38 mm)
Weight: 14.6 oz (414 g)
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