Overview
The ETCRTSLM-104 is a versatile, user-friendly device tailored for comprehensive noise assessments. Its measurement range spans from 20 to 142 dB, making it suitable for capturing a wide spectrum of noise levels. In real-time, the device can perform statistical analysis, octave band measurements, and dosimetry for precise monitoring. It adheres to stringent IEC standards, meeting Class 1 requirements for sound level meters, octave band analyzers, and noise dosimeters, ensuring accuracy and compliance for workplace and environmental noise certification. The instrument is ideal for multiple applications, including industrial noise profiling, environmental certification, peak C-level measurements, impulse noise assessments, and workplace noise evaluations. This makes it a valuable tool for assessing and managing noise within industrial environments and at industry boundaries.
Features
- A handhold noise measuring instrument
- Multifunction and user- friendly sound level meter (integrating SLM, 1/1 OCT, 1/3 OCT analyzer, Noise dosimeter)
- 240×320 color screen
- Measurement range 20~142dB
- Synchronously do statistical, real-time 1/1 OCT, 1/3 OCT, and noise dosimeter measure
- Comply with IEC 61672 Class 1 and IEC61260 Class 1 and IEC 61252
- 32G SD card function for precise audio recording, GPS positioning
Technical Specifications
| Parameter | Specifications |
| Fulfills Standards | IEC 61672 Class 1 |
| IEC 61260 Class 1 | |
| IEC61252:2002 | |
| IEC 60651:2001 Type 1 | |
| IEC 60804: 2000 Type 1 | |
| ANSI S1.4: 1983 Type 1 | |
| ANSI S1.4A:1985 Type 1 | |
| ANSI S1.43:1997 Type 1 | |
| ANSI S1.25:1991 | |
| Microphone+ Preamplifier | 1/2” prepolarized condenser microphone + removable preamplifier (Sensitivity Level: -28dB) |
| Correction Function | Diffusion field correction in order to comply with standards ANSI S1.4 |
| Frequency Range | 10 Hz ~ 20 kHz ± 1 dB (not including microphone) |
| Total Measurement Range | 20dB-142dB (145dB Peak) |
| Self-generated Noise | <12 dB(A), 17 dB(C), 22 dB(Z) |
| Frequency Weighting | Parallel (simultaneous) A, C, Z, B, D and user1&2-defined weighting |
| Time Weighting | Parallel (simultaneous) F, S, I, Peak |
| A/D Bits | 24 bits |
| Sampling Frequency | 48 kHz |
| Calibration | Using Sound Calibrator Class 1 |
| Correction Function | Diffusion field correction in order to comply with standards ANSI S1.4 |
| Delay Time | The meter can delay 0~99s after pressing start measuring button |
| Back Erase Function | Elimination of undesired noise; example barking dogs, cars, doors |
| Display | 240×320 color screen, adjustable brightness, backlight can be closed |
| Display Resolution | 0.1 dB |
| Low Battery Indication | Symbol indicate low battery |
| Data Storage (32 Mb FLASH RAM. SD Memory Card is Optional) | 3328 groups of integrating measuring results only. |
| 3328 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are same.) | |
| 2663 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are different.) | |
| Internal Clock | Error less than 1 min/month |
| Output Interface | AC Output (full scale): 1.0V AC RMS; Output Impedance: 1k Ω; Connector: φ3.5 mm stereo plug |
| DC Output: 20mV/dB; Output Impedance: 1k Ω; Connector: DB-9 plug | |
| RS232 Interface: To computer for output some measurement results instantaneous values, also to mini-printer for printing Transmission speed: 4800, 9600,115200 bps | |
| USB Interface: available and no need device drive. Allow USB to be controlled via communication commands | |
| Power Supply | 4×LR6 alkaline battery or rechargeable batteries |
| 5 V external power supply | |
| Battery Life | Longest time of 30 hours continuously with 4×LR6 alkaline battery |
| Dimensions | 260 (H) x 80 (W) x 30 (D), mm. |
| Weight | 0.35 kg. (include batteries) |
| EMC | Type X |
| Environment | Working Temperature: -10 ~ 50 °C Storing Temperature: -20 ~ 70 °C Relative Humidity: 25 ~ 90 % |
| Accessories | Power adaptor, USB cable, Update&RS232 cable, windscreen, hand strap, windscreen fall prevention rubber, carrying case, USB-disk, user’s manual |
| Bluetooth Module | Wireless printing and can communicate with smart phone and realize wireless control sound level meter |
