3-18
IM AQ6370D-01EN
3.7 Wavelength Calibration
WARNING
The instrument has a built-in reference light source for wavelength calibration (when
the built-in light source specification is -L1), and infrared light is always being output
from the optical output connector. Never look into the optical output connector.
Infrared light entering the eyes can cause severe injury and loss of vision.
Procedure
Wavelength Calibration Using the Internal Reference Light Source
1.
Turn the power to the instrument ON.
Turn ON the MAIN POWER
switch and press the
POWER
switch.
For instructions on turning the power ON and OFF, see section 3.4.
2.
Use a 9.5/125 µm SM optical fiber to connect the instrument’s optical input
connector with the optical output connector.
3.
Press the
SYSTEM
key. The soft key menu is displayed.
4.
Press the
WL CALIBRATION
soft key.
5.
Press the
BUILT-IN SOURCE
soft key.
6.
Press the
EXECUTE
soft key. Wavelength calibration is executed. The previous
screen is displayed again after the calibration process ends.
7.
Press the
CANCEL
soft key during wavelength calibration to cancel the
wavelength calibration process.
Note
• Always perform wavelength calibration after turning ON the power to the instrument and
allowing the warm-up to finish.
• If you are using this instrument for the first time or using it after it has been severely shaken
while being moved, you must perform the alignment adjustment procedure after warm-up
ends.
• If the wavelength error of the instrument is outside of ±5 nm, you cannot perform wavelength
calibration with the internal reference light source.
(Readjustment required. Contact your nearest Yokogawa representative.)
