YOKOGAWA AQ7260 OTDR, User Manual, Page: 121 / 442

Chapter 3 PERFORMING MEASUREMENTS
3-14
Changing the Measurement Condition Auto Setting
To simplify operation, the instrument provides a function that allows it to check the state of
the optical fiber at the start of measurement and set the following measurement conditions
automatically.
•
Distance range
•
Pulse width
•
Attenuation
This measurement condition auto setting can be changed as explained below.
♦
Example: “OFF”
→
“AUTO RANGE”
1.
Locate the cursor to “AUTO SET” by using the rotary knob or the arrow key.
2.
Press [ENTER].
A selection window will appear.
*: Indicates the default setting.
TIP
OFF Performs measurement using the preset distance
range, pulse width and attenuation.
*AUTO RANGE Sets distance range, pulse width and attenuation
automatically at the start of measurement.
Selectable
auto setting
AUTO ATTN Sets attenuation automatically at the start of
measurement.