Annex C Explosion protection of DUT-E S7
DUT-E S7 fuel level sensor. Operation manual. Version 4.0
©
Technoton, 2021
70
Annex C
Explosion protection of DUT-E S7
1)
fuel level sensors (
№
EA
Э
C RU C-BY.M
Ю
62.B.00195/19
valid from 01.03.2019 to 29.02.2024) comply with requirement of explosion protection
according to the following standards:
•
TR of ECU 012/2011
–
Technical Regulation of Eurasian Customs Union (
“
On the safety
of equipment for operation in explosive environments
”
);
•
GOST 31610.0-2012
—
Electrical equipment for explosive gas environments. Part 0.
General requirements;
•
GOST 31610.11-2012
–
Electrical equipment for explosive gas environments. Part 11.
Spark-
safe electrical circuit “i”
.
2)
Ex marking od DUT-E S7:
0Ex ia IIA T4 X
Where
X
means, that when installing and operating the sensor, special actions should be
carried out to avoid occurrence of sparks caused by hits and frictions.
Ex marking is placed on measuring “head”
of the sensors as pictured on figure C.1.
Figure C.1
—
Placing of Ex mark on DUT-E S7
3)
DUT-E S7 application area in hazardous locations of classes 0, 1 and 2 according to
IEC 60079-10-1:2006 (GOST IEC 60079-10-1-2011), categories of explosive IIA mixtures
according to IEC 60079-20-1:2010 (GOST R MEK 60079-20-1-2011), according to Ex marking
of equipment, IEC 60079-14:2007 (GOST IEC 60079-14-2011) and other regulatory
documents governing the use of electrical equipment in potentially hazardous locations.
4)
Technical specifications of DUT-E S7 linked to explosion protection:
•
ambient temperature: -
30…+80 °C
;
•
ingress protection from external impacts: IP 55/IP57;
•
nominal voltage of built-in battery: 3.6 V;
•
capacity of built-in battery: 2100 mAh.
Ex marking
