Larco Safety Mat Systems - Manual (Page 6)

6
Installation, Use and
Maintenance Guide
a. Visual Inspection
Visually inspect each mat after it has been removed from its shipping carton. Make sure there are no bends, dents, kinks or
obvious damage. Pay particular attention to the corners and cord.
b. Electrical Inspection
It is good practice to inspect the mats electrically prior to installation, especially if shipping and handling damage is suspected.
Use an ohmmeter to check each mat after it has been removed from its carton and placed on a flat surface.
For the purposes of this test, a closed circuit is defined as less than 10 ohms and an open circuit as at least one million ohms.
There are four wires housed in a single jacketed cord attached
to each mat. Two of the wires are black and two of the wires
are white.
First, with no one standing on the mat and no pressure being
applied, test to ensure that there is a closed circuit between any
like colored wires (white to white and black to black).
Next, with no one standing on the mat and no pressure being
applied, test to ensure that there is an open circuit between any
black and white wire combinations.
Last, while standing on the mat with pressure applied, test to insure that there is a closed circuit between any black and white
wire combinations (refer to Figure 2).
Positioning Mat(s)
Clean the area where the mats are to be installed, removing all debris. Place the mat(s) in the area where they are to be
installed. For installations with adjoining mats, dry fit the supplied joining trim between adjacent mats to set the proper
distance between them. Do not drill any holes at this time.
Figure 2