CEL-63x Environmental & Occupational Noise Meter
29
Casella CEL
Calibration mode
The CEL-63x instrument changes automatically from Stop mode to Calibration
mode when it detects a stable 1 kHz calibration tone.
The Calibrate mode has two separate screens.
Start calibration
The Start calibration screen shows the setting for calibration
reference level, and the level of calibration tone that the
instrument is measuring.
IMPORTANT
You must make sure the instrument is set to use the same calibration reference level
as the calibrator. Refer to the calibrator‟s manual for this information, and refer to
on page 39
for instructions to change the instrument‟s
setup.
The Start calibration screen has two options:
- The green tick symbol allows you to start the calibration process.
- The red cross symbol allows you to exit the Calibration mode.
Calibration progress
After you start the calibration process, the Calibration progress
screen shows a horizontal progress bar and the level of
calibration tone that the instrument is measuring.
After the calibration process finishes, this screen shows whether
the calibration has passed or failed.
When the calibration passes, it is saved automatically.
