Extech Instruments 407355 Bedienungsanleitung PDF herunterladen (Seite 12)

407355 Version 2.4 9/07 12

EVENT WINDOW - Download data from meter bank (E1 through E5) to PC

In this window the user can download, view, and save the contents of the meter’s Event

banks E1 through E5. Use the BANK tab to select one bank or all banks; this will

automatically start a download operation. Alternatively, simply click on a column to

initiate a download operation. The MENU headings are described below:

 FILE: Save the event data in a file

 BANK: Select one bank or all banks to initiate a download from meter to PC

 PRINT: Click to print the data to the local printer

 EXIT: Close the EVENT window

The Parameters shown in the left-most column of the EVENT window are explained

below:

 USED OR NOT: Indicates that there are or are not data records in a particular

bank. The word RECORDING will appear if the meter is currently performing a

noise survey.

 Criterion, Threshold, Exchange, and Time weighting are the settings configured by

the user for a noise survey as described previously.

 115VdB RMS: Alerts the user that the sound level reached 115dB

 EXCEED 140dB: Alerts the user that the sound level reached 140dB

 START DATE and TIME: Date and time when noise survey began

 STOP TIME: Time of day noise survey ended

 EXPOSURE TIME: Duration of test

 DOSE VALUE: Dose value in percent for the period of the test

 TWA: Projected sound level in dB. In the example above, the elapsed time of the

noise exposure test is only 17 minutes; much shorter than an 8-hour test. However,

if sound levels remain relatively constant for the next 8 hours, the projected sound

level average will be 57.2 dB.

 PEAK FLAG TIME: Time of day when sound level reached 115dB

 PEAK DURATION: Interval of time that sound level was equal to or greater than

115dB

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Extech Instruments 407355 Bedienungsanleitung Seite 12