Industrial Fiber Optics IF-FOM, Руководство оператора

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TROUBLESHOOTING
LCD Remains Blank When Switch is Depressed
• No batteries installed.
• Batteries may be weak. The display circuit is powered by the battery closest to
the “ON/OFF” switch. See the section titled SERVICE AND MAINTENANCE for
battery installation.
LCD Display Does Not Read “ZERO”
• Install protective cap on “DETECTOR” receptacle.
• Zero adjustment is needed. Follow the “Zeroing” Procedure in the section titled
SERVICE AND MAINTENANCE.
• Batteries may be weak. The display circuit is powered by the battery closest to
the “ON/OFF” switch. See the section titled SERVICE AND MAINTENANCE for
battery installation.
No Change in Display Reading
• Detector sensitive area blocked. Check for foreign matter in “DETECTOR”
receptacle.
• Fiber optic connector end not properly seated in receptacle. Make certain ST ®
connector is properly inserted and locked in place. Check source side of fi ber
optic cable.
• “DISPLAY SELECTOR SWITCH” is set at too high a range. Turn switch counter-
clockwise until reading is obtained.
• Batteries may be weak. The display circuit is powered by the battery closest to
the “ON/OFF” switch. See the section titled SERVICE AND MAINTENANCE for
battery installation.
Built-in LED is Dim or Does Not Light
• Batteries may be weak. The LED circuit is powered by the battery closest to the
LED receptacle. See the section titled SERVICE AND MAINTENANCE for battery
installation.
• LED drive current needs adjustment. Follow the LED Power Adjustment Procedure
in the section titled SERVICE AND MAINTENANCE.
Do not attempt to troubleshoot the Fiber Optic Test Set beyond the steps listed above. If you
believe that a problem exists within the Fiber Optic Test Set, please either contact the factory
or return it for appropriate servicing to Industrial Fiber Optics, as described in the section
titled SERVICE AND MAINTENANCE.