8163A/B, 8164A/B, 8166A/B User’s Guide 429Cleaning Instructions 15Pipe cleanerPipe cleaners can be purchased from tobacconists, and come in variousshapes and sizes.The most suitable one to select for cleaning purposes hassoft bristles, which will not produces scratches.There are many different kinds of pipe cleaner available from tobaccoshops.The best way to use a pipe cleaner is to push it in and out of the deviceopening (for example, when cleaning an interface). While you are cleaning,you should slowly rotate the pipe cleaner.Only use pipe cleaners on connector interfaces or on feed throughadapters. Do not use them on optical head adapters, as the center of apipe cleaner is hard metal and can damage the bottom of the adapter.Your pipe cleaner should be new when you use it. If it has collected anydust or dirt, this can scratch or contaminate your device.The tip and center of the pipe cleaner are made of metal. Avoidaccidentally pressing these metal parts against the inside of the device, asthis can cause scratches.Compressed airCompressed air can be purchased from any laboratory supplier.It is essential that your compressed air is free of dust, water and oil. Onlyuse clean, dry air. If not, this can lead to filmy deposits or scratches on thesurface of your connector. This will reduce the performance of yourtransmission system.When spraying compressed air, hold the can upright. If the can is held at aslant, propellant could escape and dirty your optical device. First sprayinto the air, as the initial stream of compressed air could contain somecondensation or propellant. Such condensation leaves behind a filmydeposit.Please be friendly to your environment and use a CFC-free aerosol.Additional Cleaning EquipmentSome Cleaning Procedures need the following equipment, which is notrequired to clean each instrument:• Microscope with a magnification range about 50X up to 300X onpage 430• Ultrasonic bath on page 430
