DSL-331 Sound Level meter Data logger USB Recorder Product ID: DSL-331
The model DSL-331 digital meter is manufactured by Tecpel, and is a programmable sound level data logger equipped with back screw hole tripod connection. It has frequency range from 31.5 Hz up to 8 KHz, voltage supply of 9 V DC measuring level range from 30 to 130dB and operating temperature of 40 ºC. This is used in applications such as monitoring of safe working conditions, activity detection and recording, long-term measurement and recording of acoustic levels for environmental impact studies.
Model：DSL-331
1.Auto Ranging Measurement 30dB to 130dB
2.Work with Window Software
3.32,000 Records Data Logger
4.Bar graph Indication with Back Light
5.USB cable available for optional purchase.
- DSL-331 sound level meter data logger FEATURES:
- Auto Ranging Measurement 30dB to 130dB
- Work with Window Software
- 32,000 Records Data Logger
- Bar graph Indication with Back Light
- RS-232 Real Time Display Software for Window 95/98/2000 and Win10
- Frequency Weighting: A, C
- 4-Digit Display with updated cycle 0.5s
- 0.1dB resolution
- Max/Min Hold Function
- The standard Fast and Slow Time weightings
- AC/DC signal output
- Overload condition indication
- Auxiliary output jack
- IEC 651 Type II, ANSI S1.4 Type2.
- Back screw hole tripod connection
- External Power DC 9V input
- Calibration Potentiometer easy to adjust
- DSL 331 SPECIFICATIONS
- Standard Applied: IEC651 Type 2, ANSI S1.4 Type 2
- Frequency Range 31.5Hz ~ 8KHz
- Measuring Level Range : 30 ~ 130dB
- Frequency Weighting A/C
- Microphone 1/2 inch electric condenser microphone Display
- LCD Back Light Function
- Digital Display 4 digits ,
- Resolution: 0.1dB,
- Display Update: 0.5 sec
- Analog Display 50 segment Bar graph, Resolution,
- Resolution: 1dB,
- Display update: 50mS
- Time Weighting FAST (125mS); SLOW(1 Sec)
- LEVEL Range : Lo: 30 ~ 80dB ; Med: 50~ 100dB, Hi: 80~ 130dB; Auto Range : 30~ 130 dB
- Accuracy: ±1.5dB (under reference condition at 94dB 1KHz)
- Measuring Level Range : 30 ~ 130dB
- Dynamic Range 100 dB
- Over and Under range Indication Function 'OVER' is displayed, while input is more than upper limit of range. ; ' UNDER' is displayed, while input is less than lower limit of range.
- MAX/MIN Hold
- Hold Reading the Maximum and Minimum Value
- AC Output 1V rms at FS (Full Scale), output impedance : Approx. 100 Ω
- DC Output 10mV/dB, Output impedance approx. 1K Ω
- Auto Power Off 30 minutes if no operation
- GENERAL
- Power Requirement: One piece 9V battery NEDA 1604
- Power Life About 50 Hours (Alkaline battery)
- AC Adapter (option)
- Voltage 9VDC (8~ 15 V DC Max) ; Supply current : > 30mADC
- Operation Temperature: 0 to 40 ºC (32 to 104 ºF)
- Operation Humidity: 10 to 90% RH
- Storage Humidity: 10 to 75% RH
- Weight: 10 oz(285g)
- Accessories: 9V battery, Carrying case, calibration screwdriver, 3.5Ø plug, windscreen and owners manual.
- Tripod Connection Hole Able to connect Camera Tripot Stand
Q & A:
We own one of your Tecpel 331 sound level meter data loggers which we used to measure the noise levels in patients rooms. The recording range was set 30-130 dBa, in fast recording mode. We had measurements of 28 dB despite the range of 30-130 dB. Could you please explain how this happen? Our findings will be published in a scientific journal hence we may need to explain this to reviewers.
Your help is much appreciated
Q & A:
Does this work on Windows 10?
I want to connect the DSL-331 to my PC using the supplied ‘USB to RS232 adaptor cable’.
I have installed the software which runs OK but ‘No Connection’ on Com3 after connecting meter.
Answer: