Rockwell Automation 440F MatGuard, 440F-C4000 Mat Controllers - Manual (Page 16)

5.3 ENVIRONMENT AND OPERATING CONDITIONS
By reference to the specifications given in section 4 and the information in this section, ensure that there
are no adverse factors which could compromise the integrity of the system.
5.3.1 CHEMICAL RESISTANCE OF SENSOR MAT VINYL COVERING
Substance – Resistance of mat covering
WATER – EXCELLENT
ETHYL ALCOHOL – EXCELLENT
SODIUM CHLORIDE – EXCELLENT
BLEACH – EXCELLENT
HYDROCHLORIC ACID – FAIR to EXCELLENT
SULPHURIC ACID – FAIR to EXCELLENT
NITRIC ACID – FAIR to EXCELLENT
ACETIC ACID – FAIR
PETROL (GASOLINE) _ FAIR
TRICHLORETHYLENE – FAIR to POOR
BENZENE – POOR
ACETONE – POOR
In general the covering has excellent resistance to acids, alkalis and salts.
Hot acids and alkalis, as well as concentrated and organic acids, have a deleterious effect on
prolonged exposure. The covering has fair resistance to aliphatic solvents, fair to poor resistance to
aromatic and chlorinated solvents and poor resistance to ketones and most esters.
NOTE: Combinations of chemicals can have unpredictable effects. Testing is recommended in
such cases. Small pieces of the vinyl material are available from supplier if testing is
required.
5.3.2 SLIPPING / TRIPPING HAZARDS
Both sensor mat patterns provide a non-slip surface under most conditions but should be kept free from
large deposits of grease, soaps or gels. If the straight rib side is uppermost, it is
recommended that the ribs run across the hazard to give improved grip.
5.3.3 WEAR AND DAMAGE
The mat outer surface can be damaged by impacts from sharp or heavy objects. After every such event
the mat should be inspected for deformation or puncturing and replaced if necessary.
Mats have been designed and tested to withstand one million operations in any one spot. In use, this
number of operations in any single location should not be exceeded.
Occasional heavy loads, (e.g. up to 3 tonne trucks) are unlikely to damage the mats but they should not
be used on traffic through routes.
5.3.4 EXPLOSIVE ATMOSPHERES
The system is not suitable for use in explosive atmospheres.
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