Integrating Sound Level Meter 2511
Features
Type 1 Sound Level Meter for SPL datalogging and Leq results as per IS9779.
Data storage on pen-drive in text format or ODB format.
Virtually unlimited storage of logged data on pendrive.
dB-A frequency weighting.
‘Slow’ response.
Optional Mini thermal printer for on-site printing of reports.
PC based software DL03 for time graphs, statistical data, Leq, Ln, SEL, Lmax,Lmin, Histogram.
Detachable electret condenser microphone.
Technical Data
| Standards | Designed as per IS:9779- 1981, 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 as per IS:9779- 1981. |
| Time weighting | Slow, as per IS: 9779- 1981. |
| Function | Measures dB(A) and computes Leq over user specified time period, and storage on users Thumb Drive. |
| 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 on external user-mounted USB thumb 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: Upto 8 sessions/day can be userprogrammed to start and stop monitoring at predetermined time in predetermined 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 (Optional) for printing csv files |
| Construction | Rugged die cast, reflection free, aluminium enclosure |
| Temperature | 0 to 50 degree Celsius |
| Humidity | 0 to 90% none condensing |
| Dimensions | L210 W90 H25mm |
| Weight | 650gms |
| Standard accessories | Battery charger, Microphone, Briefcase type carrying case, Windshield, Softcopy of Operation Manual, 4GB Pen-drive with DL03 software, Serial Cable |
| Optional Accessories | Acoustic Calibrator 3022, Tripod Stand, Mic Extension cable, Thermal Printer 3064. |
