Tektronix TekRanger 2 TFS3031, Руководство по обслуживанию

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TFS3031 TekRanger/TekRanger 2 Service Manual
xiii
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.
Only qualified personnel should perform service procedures.
Injury Precautions
WARNING.
INVISIBLE LASER RADIATION. To eliminate hazardous radiation
exposure, do not use controls or adjustments, or perform procedures, other than
those specified in this manual.
The TFS3031 tests optical fibers by emitting short pulses of laser light. The
interval between pulses is large compared to the pulsewidth. Although the pulsed
power is in the milliwatt range, the average power is only in the microwatt range.
The light is emitted by the optical port on the right side-panel, and is invisible to
the human eye.
The TFS3031 is classified as a
I
laser product under
the Radiation Control and Health Safety Act of 1968, and complies with 21 CFR
1040.10 and 1040.11.
Even though the TFS3031 is categorized as a
I
laser
product (the lowest classification), you should avoid exposing your eyes to its
light:
H
Do not look into the optical port when the TFS3031 is switched on.
H
Keep the dust cap on the optical port when not in use.
H
Avoid looking at the free end of a test fiber (the end not connected to the
TFS3031). If possible, direct the free end toward a non-reflective surface.
When a fiber is not connected to the optical port, the TFS3031 may emit laser
light briefly in the following circumstances:During the connection status portion
of the test, until the operator either terminates the test, or allows it to continue
under the ‘‘connection status’’ warning. If the fiber is disconnected from the
optical port during a test, the laser may remain on for up to 60 seconds.
Laser Radiation
Optical Output