EZ Digital FC-3000 Operation Manual - 4. Maintenance
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c. Select the resolution desired using the gate time switches.
d. Frequency ratio is given by the display the gate indicator lights while
each measurement is in progress, and the display is updated at the end
of each measurement interval.
e. Press the hold switch "freezes" the display at the existing reading. When
hold is released, a new measurement begins, but the display continues to
hold the old reading until the new measurement is completed.
4. MAINTENANCE
CAUTION
IT IS ESSENTIAL FOR SAFETY TO PROPERLY MAINTAIN AND SERVICE THIS
INSTRUMENT
WARNING
VOLTAGES WITHIN THIS INSTRUMENT ARE SUFFICIENTLY HIGH TO
ENDANGER LIFE. COVERS MUST NOT BE REMOVED EXCEPT BY PERSONS
QUALIFIED AND AUTHORIZED TO DO SO AND THESE PERSONS SHOULD
ALWAYS TAKE EXTREME CARE ONCE THE COVERS HAVE BEEN REMOVED.
4-1. Fuse Replacement
Disconnect and remove all connections from any live power source.
Unscrew fuse holder by screw driver.
Locate the defective fuse and remove it by gently pulling-out.
Install a new fuse of the SAME SIZE AND RATING.
Screwing fuse holder.
CAUTION
MAKE SURE THAT THE RATED AND SPECIFIED FUSES ARE USED FOR REPLACEMENT.
4-2. Adjustment And Calibration
It is recommendable to regularly adjust and calibrate this instrument. Qualified and
authorized personnel only should execute performance and procedures
4-3. Cleaning and decontamination
The instrument can be cleaned with a soft clean cloth to remove any oil, grease or
grime. Never use liquid solvents or detergents. If the instrument gets wet for any
reason, dry the instrument using low-pressure clean air at less than 25 PSI. Use care
and caution around the window cover areas where water or air could enter into the
instrument while drying.
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