Cirrus CR:262 Quick Setup Manual Download Page 2

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1. Switch On

Press the Power button to switch

on the Sound Level Meter

The instrument will display the

startup screen, and then will dis-

play the last measurement made.

Press the Graph Key to cycle be-

tween the numerical display and

the graphical display of the last

measurement.

2. Calibration

Attach the Acoustic Calibrator to

the Sound Level Meter and switch

to the 94dB level setting.

Press the Cal key to start the

calibration procedure.

When the calibration is complete,

the display will change to show

the calibration level.

Remove the Acoustic Calibra-

tor, switch off the calibrator and

store.

3. Measurement Range

The Sound Level Meter should be

set to the correct range before

measurements are made.

Press the Start Key.

Use the Up and Down Arrow

keys to change the measurement

Range.

The bar graph at the top of the

screen will change to show the

selected range and the current

noise level.

If the selected measurement range

is too low, the instrument will display

the Overload symbol.

Select a higher measurement range

If the selected measurement range is

too high, the instrument will display

the Under-Range symbol.

Select a lower measurement range.

4. Mode Select

Press the Mode key to view the

current setup.

The CR:262 and CR:261 instru-

ments provide Broadband meas-

urements only. Go to step 5.

CR:264 & CR:263 Instruments

The CR:264 and CR:263 instru-

ments provide Broadband & 1:1

Octave Band Filter Measure-

ments.

Press the Mode Key to switch be-

tween Broadband or 1:1 Octave

Band Mode.

5. Start Measurement

Press the Start button to start

a measurement in the current

mode.

Press the Graph button to view

the graphical display.

Press the Graph button again to

return to the Numerical display.

Press the Stop button to ﬁ n-

ish the measurement. The last

measurement will be displayed.

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Broadband Mode

1:1 Octave Band Mode

CR:263 & CR:264 Only

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Broadband Mode

1:1 Octave Band Mode

CR:263 & CR:264 Only

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Calibration Error Messages

Too Low

Check the calibrator is switched on and correctly attached

Too High

Check the calibrator is set to the 94dB position

Unstable

The background noise is too high

Range Up

Range Down

Bottom of

selected

range

Top of

selected

range

Attaching the Calibrator

Gently push and twist the calibrator clockwise.

To Remove, gently pull and twist clockwise

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Summary of Contents for CR:262

Page 1: ...ound Level Meters User Manual CR 260 Series Product Datasheet Noise Measurement Terminology Guide Example Meaurement Report Adobe Acrobat Reader Version Upgrade Information Deaf De er 3 Software Link...

Page 2: ...rement range is too high the instrument will display the Under Range symbol Select a lower measurement range 4 Mode Select Press the Mode key to view the current setup The CR 262 and CR 261 instru men...

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Cirrus CR:262, Quick Setup Manual

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