Extech 407730 Handleiding

Extech Meetapparatuur 407730

Lees hieronder de 📖 handleiding in het Nederlandse voor Extech 407730 (6 pagina's) in de categorie Meetapparatuur. Deze handleiding was nuttig voor 48 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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User Manual
Digital Sound Level Meter
Model 407730
2 407730- - _V2.0 /en US 10 21
Introduction
Congratulations on your purchase of the Extech 407730 Digital Sound Level Meter. The 407730
measures and displays sound pressure levels in dB from to 130dB. User selectable features 40
include Frequency Weighting (‘A’ and ‘C’), Response Time (Fast and Slow), Max Hold, and
Max/Min recording. Careful use of this meter will provide years of reliable service.
Meter Description
1. Microphone
2. LCD Display
3. -OFF button ON
4. A/C weighting selection button
5. Min/Max Record button
6. Range selector button
7. F/S response selection button
8. Max Hold selector button
9. Calibration adjustment
10. AC analog output jack
11. Windscreen
1. Record icon
2. Auto or Manual range
3. Range indicator
4. Bargraph
5. A or C weighting
6. on Low bat ic
7. Max level indicator
8. Hold indicator
9. Min indicator
10. Fast or Slow weighting
11. dB display
3 407730- - _V2.0 /en US 10 21
Operation
1. Power the meter by pressing the power button. The meter will begin displaying sound level
readings. If the LCD does not switch on, check the 9V battery located in the rear battery
compartment.
2. Hold the meter away from the body.
3. View the measurement on the meter’s display If the meter is in the autoranging mode, the .
display may briefly indicate “HI” or “LO” if the noise level is above or below the currently selected
range. The meter will change the range as needed to display the dB level.
‘A’ and ‘C’ Frequency Weighting
Use the ‘A/C’ button to select ‘A’ or ‘C’ frequency weighting.
With ‘A’ weighting selected, the frequency response of the meter is similar to the response of the
human ear. ‘A’ weighting is commonly used for environmental or hearing conservation programs ‘C’ .
weighting is a much atter response and is suitable for the sound level analysis of machines,
engines, etc. “A” or “C” icons will appear in the display.
Most noise measurements are performed using 'A' Weighting and SLOW Response.
‘ ’ and ‘ ’FAST SLOW Response Time
Use the ‘F/S’ button to select FAST (125 ) or SLOW (1 second) response time. Select FAST to ms
capture noise peaks and noises that occur very quickly. Select the SLOW response to monitor a
sound source that has a consistent noise level or to average quickly changing levels. “FAST” or
“SLOW” icons will appear in the display.
Select Slow response for most applications.
Auto or Manual Ranging
The meter will turn on in the auto-ranging mode and “AUTO” will be indicated on the display. In this
mode the meter will automatically select the best range for the noise level being measured. If the
measured dB level exceeds the range of the meter or the range of a selected range, “HI” will appear
in the display. If the measured dB level is lower than the selected range, “LO” will appear in the
display.
1. Press the RNG button to manually select the range, “MANU” will be indicated on the display. The
four ranges are: 40-70, 60-90, 80-110 and 100- Press the button to step through the 130. RNG
ranges.
2. Press and Hold the button for 2 seconds to exit the manual range mode. RNG
MAX HOLD
In this mode the meter only updates the LCD when a higher reading than the one presently on the
display is detected.
1. Press the MAX HOLD button to enter the Max Hold mode.. The MAX icon will appear in “ HOLD”
the display.
2. Press the MAX HOLD button again to exit this mode.

Product specificaties

Merk: Extech
Categorie: Meetapparatuur
Model: 407730

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