Certificate Of Conformity Tr Cu (Eac Marking); Additional Instructions For The Ex Version; Surface Temperature; Non-Metallic Parts - Techfluid SC250H Instruction Manual

23.3 Certificate of conformity TR CU (EAC marking)
Tecfluid S.A. have subjected the series SC250 of flowmeters to a
certification procedure according to the technical regulations of the
Customs Union of the Eurasian Economic Union (EEU).
This Certificate is an official document confirming the quality of production with the
standards on the territory of the Customs Union, particularly regarding safety requirements
and electromagnetic compatibility.
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ADDITIONAL INSTRUCTIONS FOR THE Ex VERSION

This chapter only applies to equipment intended for use in explosive atmospheres.
These equipment conform with the directive 2014/34/EU (Equipment and protective systems
intended for use in potentially explosive atmospheres) as indicated in the EC-type
examination certificate and in its marking. They are also compliant with the IECEx scheme.
Given that this instrument is group II, it is intended for use in places likely to become
endangered by explosive atmospheres, but not in mines.
For the category 1G, the equipment is intended for use in areas in which explosive
atmospheres caused by mixtures of air and gases, vapours or mists are present
continuously, for long periods or frequently.
For the category 1D, the equipment is intended for use in areas in which explosive
atmospheres caused by inflammable dusts are present continuously, for long periods or
frequently.
24.1

Surface temperature

Equipment is certificated as Exia IIC T4 or Exia IIC T6.
The maximum possible Surface temperature are the following:
Temperature
24.2 Non metallic parts
WARNING: POTENTIAL RISK OF ELECTROSTATIC CHARGE
The front of the housing consists of a transparent plastic window in order to let the user see
the position of the pointer on the scale.
Since the danger of ignition by electrostatic discharge when rubbing this window can not be
avoided, the instrument must always be cleaned with a damp cloth.
WARNING: RISK OF IMPACT
Because the housing base is made of aluminium, the equipment must be installed and
operated always in locations at low risk of impact.
Maximum surface
class temperature
T4 135ºC
T6 85ºC
Ignition temperature
of the specific gas
involved
135ºC
85ºC
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