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VI. CLEANING AND MAINTENANCE
The NCA-200 does require regular maintenance which is the cleaning and refilling of the
liquid cooling system.
This is required once every 6 months,
and should be performed by
your local Otometrics distributor or the factory. Keep the instrument clean and as free of
dust as possible. Remove dust using a soft cloth. To clean the outside case, use a soft,
slightly damp cloth with a small amount of mild detergent.
It will also be necessary to dispose the used speculum. The specula were designed for Single
Use Only. Additional Specula (part # 8-62-44100 – Qty 25) can be obtained from
Otometrics or your distributor.
Two 5 amp fuses (3 amp for 240v operation) are located on the back panel.
NCA-200 Coolant Refill Procedure
NOTE: If the customer is not comfortable following this procedure, contact
Otometrics or your local authorized dealer.
1.
Unplug the unit from the power source.
2.
Remove the four screws from the back panel.
3.
Slide the cover back and lift it off the unit.
4.
Unscrew the top cover from the white plastic reservoir.
5.
Plug the NCA-200 into an appropriate source.
Caution:
Throughout this procedure, be careful that you do not spill
any water on the internal circuit boards or components. Also, be very
careful that you do not come in contact with any of the fuseholders,
transformer wires, moving fan blades, etc.
6.
Fill the reservoir with only
distilled
water.
