User manual

Masterclock TCDS-A User Manual – Original – 2013-04-19

Care and Cleaning

Adherence to regular and proper cleaning procedures is

recommended to preserve appearance. Scratched or

otherwise damaged lenses caused by misuse, mishandling,

improper storage, or improper cleaning is not covered

under the limited warranty.

MINIMIZE HAIRLINE SCRATCHES

Always store the device face-up in the protective plastic

shipping bag until ready for installation and during

transportation to the installation site. Do not place the

device face (lens surface) down on any surface as this may

scratch or mar the lens.

Scratches and minor abrasions can be minimized by using a

mild automobile polish. Three such products that tend to

polish and fill scratches are:

1. Johnson Paste Wax,

Johnson and Johnson Co.

2. Novus Plastic Polish #1 and #2,

Novus, Inc., Minneapolis, MN

3. Mirror Glaze plastic polish (MG M10)

Mirror Bright Polish Co., Pasadena, CA.

We suggest a test be made on a very small section of the

polycarbonate lens with the polish selected and that the

manufacturer's instructions be followed.

"DON'T" - VERY IMPORTANT

 Don't store the display without the protective plastic

shipment bag.

 Don't store or place the device face down on any

surface, as this may scratch the lens.

 Don't use abrasive or highly alkaline cleaners.

 Don't use paper towels, paper products, rayon, or

polyester cloths to clean or dry the lens.

 Don't scrape the lens with squeegees, razor blades or

other sharp instruments.

 Don't ever use benzene, gasoline, acetone, methyl

ethyl ketone (MEK), muriatic acid, or carbon

tetrachloride on the lens.

 Don't clean lenses in hot sun or on very hot days.