Acquiring Waveforms
3-58
CSA7000B Series & TDS7000B Series Instruments User Manual
CAUTION. To pr event loss of optical power or damage to the optical connectors,
keep the connectors clean at all times.
When cleaning the connectors with a swab, use gentle circular motions. Use only
high quality cleaning supplies that are non-abrasive and leave no residue.
To reduce the need for cleaning, immediately replace protective caps on the
optical connectors when not in use.
Use the following items to clean optical connectors:
H Clean, dust-free compressed air
H Fiber-optic cleaning swabs
H Pure, electronics-grade isopropyl alcohol
NOTE. If isopropyl alcohol is used, care must be taken to have a truly clean,
pure, electronics-grade isopropyl alcohol source. Bottles of isopropyl alcohol
can become contaminated after several uses; the alcohol can then leave a
residue on optical connectors after drying.
Cleaning kits for optical connectors (such as the Tektronix Optical Connector
Cleaner kit number 020-2357-00) are available from a number of suppliers.
To clean optical connectors, follow these steps:
1. Remove the UCI adapter.
2. Hold the can of compressed air upright, and spray the can into the air to
purge any propellant.
3. Spray the clean compressed air on the connectors to remove any loose
particles or moisture.
4. Moisten a clean optical swab with isopropyl alcohol, and then lightly swab
the surfaces of the connectors.
5. Spray the clean compressed air on the connectors again to remove any loose
particles or isopropyl alcohol.
6. Blow clean compressed air through the UCI adapter before replacing it.
The Vertical Setup menu lets you access the optical wavelength and the Dark
Level compensation procedure. This menu is shown in Figure 3--20 on
page 3--59. Wavelength and Dark Level menus are not available unless the O/E
Electrical Out-to-CH1 Input adapter is installed.
Optical Dark
Compensation
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