Routine Tests In General; Routine Tests Interval; Visual Inspections; Close Examination - Emerson ROSEMOUNT MLT 2 Upgrade Manual

MLT 2 / BINOS
4.1

Routine Tests in General

4.1.1

Routine Tests Interval

To ensure the performance and safety of the
equipment it has to be checked on a regular
basis, at least once a year. Special care has
to be taken for the pressurization system
and parts ensuring explosion protection (e.g.
gaskets).
Routine tests can be differentiated into
4.1.2

Visual Inspections

Visual inspections comprise an external in-
spection of the equipment to achieve timely
information about visual notable defects.
Furthermore included is an assessment of de-
fects by means of other sense organs (sense
of touch, sense of hering, sense of smell), e.g.
excessive vibration, corrosion, leakage.
4.1.3

Close Examination

A close examination is performed to achieve
timely information about defects not directly
visible or audible, and is carried out similiar
to visual inspections, but by means of tools
(e.g. ladders). Working inside the equipment
(e.g. by opening the enclosure) is usually not
required for close examinations.
4.1.4

Detail Examination

Performing detail examinations, in addition
to the procedures described above, allows
to discover defects, only to be determined by
opening of enclosures and/or the use of tools
or special examination equiment.
4-2

100 F
4.1 Routine Tests in General
ATEX Instruction Manual
It is the operators/owners respon-
sibility to extend the maintenance
interval with respect to negative
influences of gases or environ-
ment on materials in contact with
the sample gas or ensuring explo-
sion protection (e.g. gaskets).
Section 4.2 describes routine tests according
4.1.
Section 4.3 describes tests to be performed
after maintenance or repair.
Emerson Process Management GmbH & Co. OHG
ETC01035
02/2008