Leuze electronic MLC 520 User Manual

Testing
Leuze electronic MLC 520 43
9.2 To be performed periodically by competent persons
The reliable interaction of safety sensor and machine must be periodically tested by competent persons in
order to detect changes to the machine or impermissible tampering with the safety sensor.
Acc. to IEC/TS 62046 and national regulations (e.g., EU directive 2009/104/EC), tests of elements which
are subject to wear must be performed by competent persons at regular intervals. Testing intervals may be
regulated by nationally applicable regulations (recommendation acc. to IEC/TS62046: 6months).
Ä Have all tests performed by competent persons.
Ä Observe the nationally applicable regulations and the time periods specified therein.
Ä As preparation, observe the checklist (see chapter 9.1 "Before the initial start-up and following modifi-
cations").
9.3 Periodically by the operator
The function of the safety sensor must be checked periodically depending on the given risk (e.g. daily or on
change of shifts) according to the following checklist so that damages or prohibited tampering can be de-
tected.
Due to complex machines and processes, it may be necessary under certain circumstances to check some
points at longer time intervals. Observe the classification in “Test at least” and “Test when possible”.
NOTICE
For larger distances between transmitter and receiver and when using deflecting mirrors, a sec-
ond person may be necessary.
WARNING
Unpredictable machine behavior during the test may result in serious injury!
Ä Make certain that there are no people in the danger zone.
Ä Before they begin work, train the operators on their respective tasks and provide suitable
test objects and an appropriate test instruction.
9.3.1 Checklist – periodically by the operator
NOTICE
Ä If you answer one of the items on the following check list with no, the machine must no
longer be operated.
Tab.9.2: Checklist – regular function test by trained operators/persons
Test at least: Yes No
Are safety sensor and connectors securely mounted and free of obvious signs of damage,
changes or tampering?
Were obvious changes made to access or entry possibilities?

Leuze electronic MLC 520 Specifications

General

Brand	Leuze electronic
Model	MLC 520
Category	Security Sensors
Language	English