Omron NT-series Programmable Terminal V022-E3-1 - Manual (Page 305)

Reference
 
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Appendix K
Chemical-resistant Cover .. Type NT600S-KBA01
Covers the front panel and protects it from chemical agents. The entire sheet is milky white and made of silicone
rubber.
The protection the cover affords is summarized below.
Protects Against Does Not Protect Against
Boric acid
Sulfuric acid
Nitric acid
Ammonia gas
Carbon dioxide
Phenol
Glycerin
Ammonia water
Calcium chloride
Developing fluid (“hypo”)
Acetaldehyde
Lard
Hexane
Lubricating oils
Benzene
Butane
Carbonic acid
Chlorinated solvents
Napthalene
Soya oil
Toluene
For information on protection against chemical agents not included in the table above, please ask OMRON. (If it is a
chemical agent to which silicone rubber is recognized to be resistant, the cover can be used with confidence even if
that chemical agent is not listed in the “Protects Against” column above.
 This cover does not afford protection against all chemical agents.
 Since the cover is milky white, it reduces the clarity of the display a little.
 This cover is intended to be affixed to the display in order to provide protection
against chemical agents. It will not provide protection against chemical agents
that enter through the installation panel or through the gap between the cover
and the display.