Lutron SL4012
Sound Level Meter, RS232, Auto Range, IEC651 Type 2
SOUND LEVEL METER
Auto range, RS‑232
Model: SL‑4012
Features
- Large LCD display, easy to read.
- Main functions designed to meet IEC 651 type 2.
- A & C weighting networks meet standards.
- Fast and slow time weighting dynamic characteristic modes.
- AC output for system expansion.
- RS‑232 computer interface.
- Auto range and manual range selection.
- Available for external calibration adjustment.
- Condenser microphone for high accuracy and long‑term stability.
- Memory function to store Max. & Min. values.
- Peak max. LCD function.
- Large LCD display provides clear readout even in night ambient conditions.
- Durable and lightweight ABS plastic housing.
- Small and lightweight design, easy for operation.
Specifications
| Display | Multi‑function LCD display, 52 × 32 mm. |
| Function | dB (A & C frequency weighting), Time weighting (Fast, Slow), Max., Min., Hold, AC output, RS‑232 output. |
| Measurement Range | 30 – 130 dB. |
| Resolution | 0.1 dB. |
| Range Selector | Auto range: 30 – 130 dB. Manual ranges: 30 – 80 dB, 50 – 100 dB, 80 – 130 dB. |
| Accuracy (23 ± 5°C) | Meets IEC 651 type 2, calibrated input signal on 94 dB (31.5 Hz to 8 kHz). A weighting accuracy: 31.5 Hz ± 3 dB, 63 Hz ± 2 dB, 125 Hz ± 1.5 dB, 250 Hz ± 1.5 dB, 500 Hz ± 1.5 dB, 1 kHz ± 1.5 dB, 2 kHz ± 2 dB, 4 kHz ± 3 dB, 8 kHz ± 5 dB. |
| Frequency Response | 31.5 Hz to 8 kHz. |
| Microphone Type | Electric condenser microphone. |
| Microphone Size | Ø 12.7 mm (0.5 inch). |
| Weighting Network | A weighting & C weighting. |
| Time Weighting | Fast: 200 ms. Slow: 500 ms. |
| Calibrator | B & K (Brüel & Kjær), Multi‑function acoustic calibrator model 4231. |
| Output Signal | AC output: 5 Vrms corresponding to each range. DC output impedance: 600 ohm. |
| Output Terminal | RS‑232 computer interface terminal. AC output terminal. |
| Calibration VR | Built‑in external calibration VR, easy to calibrate on front panel. |
| Operating Temperature | 0 to 50°C (32 to 122°F). |
| Operating Humidity | Less than 90% RH. |
| Power Supply | DC 9V battery (006P, MN1604) or equivalent. |
| Power Consumption | Approx. DC 5 mA. |
| Dimension | 268 × 80 × 38 mm (10.5 × 3.1 × 1.5 inch). |
| Weight | 265 g (0.58 lb), including battery. |
| Accessories Included | Instruction manual — 1 PC. |
| Optional Accessories | Sound calibrator SC‑941 / SC‑942. RS‑232 cable UPCB‑02. Windows software SW‑U801‑WIN. |
| Selling Unit | EACH |
|---|---|
| Model No | SL4012 |
| Brand |
|
| Description | Sound Level Meter, RS232, Auto Range, IEC651 Type 2 |
| Width | 68mm |
| Height | 29mm |
| Length / Breadth / Depth | 238mm |
| Weight | 92.6g |
| Categories |
Test & Measurement Equipment Digital Test Equipment Sound Level Meters |
| Data Sheet |
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