PCE-353 sound level indicator with Leq functiondevice with internal memeory, cable and software, meets all machinery directions

The PCE-353 sound level indicator has the Leq function. This sound level indicator offers the possibility to measure integrated sound level (Leq). The sound level indicator is indispensable for professionals to take measurements in the workplace. With this device you do not have to do complex calculations of the Leq / Leaq value. With an internal memory of 32,000 readings, this sound level indicator is ideal for measurements over long periods of time.
The data can be exported to a PC with the help of the RS-232 data cable for futher analysis. The software, in English, can present the readings in tables or graphs (extract of the interface protocol).
The sound level indicator meets the standards to measure noise. It includes the CE certification as it meets with the standard for machines ( 89/ 393/ EWG). Here you will find other sound level indicators that do not have the Leq function.

• Measurements to choose from: SPL, Leq, SEL, Lmin & Lmax, combined with impulse or time weighting (fast / slow)

• Memory for 32,000 readings
• Digital indicator (refreshes every 0.5 seconds)
• Analogue display with 4dB divisions, a range of 100dB, (refreshes ever 100 ms)
• MIN, MAX and Hold functions
• Analogue output, 2 Vrms EW at 600 Ohm
• Anaolgue output, 10 mV / dB at 100 Ohm
• ABS enclosure
• 35mm LCD display with 4 digits and a quasi analogue bar graph
• 1/2" precision microphone with a windscreen
• Frequency weighting A & C

 View or print the user's manual

Sound level indicator with Leq function

The sound level indicator can be used to take single or several measurements over a period of time. Readings can be transferred to a PC via  the RS-232 connector or, using the anologue output, to be evaluated and analysed in various ways. The software also can export the data to  to other programs in order to be presented. The zoom function provides a more precise analysis for each value. The software also can be programmed by the user.

The PCE-353 sound level indicator is very useful in locating and recording a general or specific sound level. In this way, you will avoid putting workers at risk on the job due to too loud noise.

With the help of the optional tripod, the PCE-353 sound level indicator can take readings easily over a period of time. The readings can be exported to a PC or laptop for analysis via the RS-232 connector.

The tripod for the PCE-353 sound level indicator to take measurements over a period of time.

Internal calculation of the energy equivalent of a continuous sound level (Leq)
 
                

• L_Aeq integrated sound level in a time of reference (T) - approximate value
• T time of reference: from 6:00 to 22:00 (during the day) 
  (daily measurement with a time reference of 6 months of the year with more traffic)
• Sum of all sound events (N) in a time of reference (T)
• i latest indication of a peculiar sound event
• t_10,i Duration of the sound event (i-ten) according to AzB /11/ (period of time in that the level of sound (LAS (t))  does not exceed 10dB below the maximum level or sound pressure (LASmax) of a sound event ("10dB - down-time")
• L_ASmax,i maximum value of the level of sound pressure of the sound event (i-ten)

We have accumulated some key points about taking sound measurements with the help of a sound level indicator:

Terms / Directives             Operation / Use              Noise at the workplace

Resolution

0.1dB

Accuracy

±1.5dB

Frequency

31.5 Hz to 8kHz

Data logger

32,000 readings

Frequency weighting

A & C

Display

35mm LCD with quasi analogue bar graph

Operating conditions

0 to +40°C, < 80 % r.h.

Power

9V battery (PP3)

Dimensions

256 x 72 x 21 mm

Standard

IEC 651 Type II (class II)

Contents
PCE-353 sound level indicator, microphone windscreen, RS-232 cable, software (compatible with Windows^® 95, 98, 2000 and XP (professional), calibration screwdriver, 1 x 9V battery, carrying case and user's manual

Optional accessories
- Acoustic calibrator
Acoustic calibrator for regular recalibration. The noise meter will be delivered calibrated but the sensor suffers from oscillation over time. The acoustic calibrator can be recalibrated independently to provide perfect measurements.

- ISO calibration certificate
For companies that wish to include the device in their group of internal tools or for annual recalibrations (if  the calibrator is not used). The ISO calibration includes a laboratory calibration document with all the measurement values. 

- Microphone extension cable
5 meter long cable. If the noise meter is used with this component, it will be able to measure the source of sound in machines directly or to check products. It is also possible to take measurements in areas that are difficult to access.

- Tripod
Light-weight aluminium tripod. It is useful to make a series of measurements and it guarantees that readings are reproduced more accurately by keeping the microphone fixed in place. Furthermore, the user is free to record readings manually or to perform other tasks. 

- Power adaptor
The supply of regular power will prevent erroneous measurements caused by failing batteries.  If you  take measurements over a long period of time with the connected data logger, we recommend to use a power adaptor.

Contact:
PCE Instruments UK Limited
Units 12/13 Southpoint Business Park
Ensign Way, Southampton
United Kingdom, SO31 4RF
Phone. +44 ( 0 ) 2380 98703 0
Fax +44 ( 0 ) 2380 98703 0