Specifications

Presence Sensing Safety Devices
MatGuard™ Mats
2-90
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Publication S117-CA001A-EN-P
Overview
General 1-Principles
2-Safety Mats 3-Safety Switches 4-Operator
Interface
5-Logic
R
Description
Features
 EC type certification
 Third party certification to EN 1760-1
 Also meets EN954-1 (ISO 13849-1) category 3 system and IEC/EN
60204-1, AS 4024.5, ANSI B11.19, ANSI RIA R15.06
 Overall sensitivity including uniting strip
 Mat manager monitors the status of each mat individually
 Rugged construction will take the pressure of 4500 psi (does not
include the active uniting trim)
 Vinyl construction resistant to most oils
 Sealed to IP67
 5-year warranty on mats
Application Types
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 Poor to Fair
Benzene Poor
Acetone Poor
Water (Sea) Excellent
Lubricating Oil Fair to Excellent
Cutting Fluids Fair to Excellent
Oil (Auto) Fair to Excellent
Brake Fluids Poor to Fair
Note: Combinations of chemicals can have unpredictable effects.
Testing is recommended in such cases. Small pieces of the vinyl
material are available if testing is required.
MatGuard consists of a number of interconnecting pressure-
sensitive safety mats and a monitoring control unit that provide a
system for area detection. The mat has been designed from the
“ground up” to meet the arduous conditions found on the factory
floor, and uses well-tried components and techniques to be
consistent with Category B and Category 1 requirements.
The mats are available in a wide range of standard sizes to meet
most requirements. Special sizes and shapes are available. Each
mat has two conductive plates that are held apart by non-
conductive compressible separators. Each four-wire mat, operating
on only 24V DC, is pre-wired and connected in series with other
mats, forming a complete floor-level guarding system for hazardous
areas. The circuit through the mat must be monitored by a safety-
rated control unit, which may be a Minotaur™ Safety Relay,
MatGuard control unit, or MatGuard Mat Manager. When the mat is
clear, the control unit provides a signal to the machine control
circuit.
When a mat is stepped on, the conductive plates touch and the
resistance in the circuit falls to zero. This is monitored by the control
unit, which sends a stop command to the machine control system.
The unique molding process allows for the long life and reliability of
the mat. Being completely sealed (IP67), water, liquids and coolants
present no problem. In addition the tough vinyl will resist bleaches,
acids, salts, and all but the most aggressive of industrial chemicals.
A range of control units is available including the Mat Manager,
which monitors the status of each mat or area of mats individually.
This enables quick fault detection/repair and identification of
actuated area.
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.