DALEMANS D-TEX3F+, Instruction Manual

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1. INTRODUCTION
The explosive gas detector
D•TEX3F+
is intended to monitor confined spaces in the commercial
and industrial sectors. The
D•TEX3F+
is suitable for use in explosive atmosphere danger zones.
It is designed to operate in association with a compatible alarm panel in order to react before the
explosive gas concentration reaches the Lower Explosive Limit (LEL). For more information on the
list of detectable gases, please contact DALEMANS.
1.1. Certification
DALEMANS declares that the explosive gas detector
D•TEX3F+
is certified for use in zone 2
explosive atmospheres and that it meets the provisions of the European Directives and the
following standards:
▪
Directive 2014/34/EU (ATEX)
▪
Standard EN 60079-0
▪
Standard EN 60079-1
▪
Standard EN 60079-15
The marking label represented below is affixed to one side of the detector and allows the user to
identify the model of detector, the type of sensor installed and information relating to the
certification concerning this equipment. In the absence of this marking label, the detector is not
certified for use in danger zones.
Figure 1: identification and certification label
Compliance
Definition (see “Directive 2034/14/EU” for more information)
II Electrical equipment group for explosive atmospheres other than mines.
3G Category 3 equipment intended for zones in which an explosive gaseous
atmosphere is not likely to form in normal operation or, if this occurs nevertheless,
it only forms for a short period (zone 2).
Ex nA d Equipment intended for explosive gaseous atmospheres and combining protection
modes “nA” (no sparks) and “d” (flameproof enclosure).
IIC Subdivision of equipment group II according to the nature of the explosive gaseous
atmosphere (methane, propane, ethylene, hydrogen, acetylene).
T2 Temperature class indicating the maximum surface temperature of the material in
an explosive gaseous atmosphere (T2=300 °C).
Gc
Material for explosive gaseous atmospheres, having “enhanced” protection, which
is not a source of ignition under normal operation, and which may have additional
protections to make sure that it remains inactive as a source of ignition in common
and regular cases.
Tamb Ambient temperature for which the temperature class (T2) has been established.