Datalogging Sound Level Meter 2521
Features
Integrating Sound Level meter for Leq measurements
Type 1 accuracy
A, C, Linear Frequency Weightings
Slow, Fast and Impulse time response
Data saved on your pendrive.
Remote operation through RS232 port
Printer interface for printing on optional thermal printer.
NPL traceable Calibration.
Rugged, reflection free Aluminum body
Technical Data
| Standards | Designed as per IS :15575:2005, Type 1 |
| Measuring Range | 30-134 dB |
| Microphone | ¼” Electet Condenser |
| Calibration | Factory Calibrated, Field calibrated by acoustic calibrator 3022. Software calibration. Calibration traceable to NPL |
| Detector | True RMS |
| Clock | Real Time with Calendar |
| Resolution | 0.1 dB |
| Display | LCD, 16*2 alpha numeric with back light |
| Error Indicators | Overload and Under Range indicators |
| Frequency weighting | A weighting, C weighting, Linear as per IS:15575:2005 |
| Time weighting | Slow ,Fast, Impulse as per IS:15575:2005 |
| Function | Measures dB and computes Leq over user specified time period, and stores in the users pendrive |
| Sampling Time | 10 milliseconds. Running Leq is computed |
| Storage interval of Leq | 1 minute ,1 second or 1 hour , user selectable |
| Storage capacity | Practically unlimited, as files are stored in external user mounted USB pen drive |
| File Formats | Comma separated time stamped values of Leq, and ODB files for reading through DL03.CSV format can be read directly into ,Word ,Excel etc. With post processing in excel ,other related quantities like noise dose, TWA etc can be computed. |
| Programmed Operation | AUTO mode: up to 8sessions/day can be user-programmed to start and stop monitoring at pre-determined time in pre determined ranges. With REPEAT on, it will repeat the program daily till cancelled. |
| Battery | 2100mAH Li Ion rechargeable battery with charger. Charger doubles as AC supply. |
| Battery Indicator | Battery life meter with auto shut-off on low battery |
| Remote Operation | Through Serial interface RS 232 using terminal software |
| Printer Interface | Suitable for connecting to Portable Serial Thermal Printer 3064 for printing CSV files (Optional Item) |
| Construction | Rugged die cast, reflection free, aluminium enclosure |
| Temperature | 0 to 50 degree Celsius |
| Humidity | 0 to 90% non-condensing. Fluid contact may damage the mic. |
| Dimensions | L210 W90 h25 mm |
| Weight | 650gms |
| Standard accessories | Battery charger, Microphone, Briefcase type carrying case , Windshield, softcopy of Operation manual, 4GB |
| Optional Accessories | Accoustic calibrator 3022,tripod stand , Mic Extension cable, Thermal Printer 3064. |
