User manual

Masterclock NTDS Series User Manual – v2 – December 2012

CLEANING THE LENS

The following cleaning agents have been found to be compatible

with the Polycarbonate and Acrylic lens. Manufacturer's

instructions should be followed.

 Formula 409™ (Clorox Co.)

 Top Job™ (Proctor and Gamble)

 VM and P grade Naphtha Joy™ (Proctor and Gamble)

 Windex w/Ammonia D™ (Drackett Products)

 Palmolive Liquid™ (Colgate Palmolive)

FOREIGN SUBSTANCE REMOVAL

The use of the following products should help remove foreign

substances from your Masterclock clock or device:

Butyl Cellosolve (Removal of paints, marking pens, lipstick, etc.)

The use of adhesive tape or lint removal tools work well for

lifting off old weathered paints.

Kerosene, naphtha, or petroleum spirits is generally effective to

remove labels, stickers, etc. When the solvent will not penetrate

sticker material, apply heat (hair dryer) to soften the adhesive

and promote removal.

Gasoline should never be used.

JOB SITE PRECAUTIONS

We recommend that devices be removed from the wall and

stored face up in their protective shipment bags during painting

and construction.

New construction and renovations frequently require that the

job site be cleaned of any excess mortar, paint, sealant, primers

or other construction compounds. Only recommended cleaners

should be used to clean the polycarbonate lens. Contact with

harsh solvents such as methyl ethyl ketone (MEK) or muriatic

acid can result in surface degradation and possible crazing of the

polycarbonate.

When the device is first installed, glazing compound and

masking tape adhesive can be easily removed from the lens by

applying VM&P naphtha or kerosene with a soft cloth, followed

immediately with a thorough soap and water cleaning.