CASELLA CEL CEL-62 Series, Руководство оператора

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CEL-62XB & CEL-62XC (Refer to Figure 14).
The CEL-62XB and CEL-62XC provides two additional octave screens shown in Figure
14. Press
View (B) to toggle the four available screens. Use the Left/Right Cursor Keys
(C) to move across the frequency bands (1) when in graphical view. Use the Up/Down
Cursor Keys (C) to toggle between LMAX and LEQ parameters (2).
Each graph bar represents an octave band measured in Hz or kHz. To view a table of
the octave values, press
View (B).
On CEL-62XC models, use the Up/Down Cursor Keys (C) when viewing numerical table
to alter the 1/3 octave frequencies viewed.
Figure 14 CEL-62XB & C Main Run Screens
K. INSTRUMENT CALIBRATION (Refer to Figure 15)
Note:
The Instrument must be at a STOP screen before the Acoustic Calibrator is fitted.
For calibrator reference level adjustment refer to Section G.
Calibrations should be performed before and after measurements. Fit the acoustic
calibrator over the removable microphone and push it home. Switch the calibrator on
using
ON/OFF Key (1). The Instrument detects the signal and automatically activates
the calibration screen (yellow bars). Press the Tick (B) to begin calibration. The
instrument will be calibrated and the word PASSED displayed. A ‘calibration change’
value is shown at the bottom of the screen. This identifies the change since the
previous calibration. Remove the acoustic calibrator. Press
Exit (A) to go back to the
Stop screen. Press and hold the acoustic calibrator ON/OFF Key to switch the calibrator
off.
Figure 15 Instrument Calibration
Casella CEL 19