Ex-Classification Atex; Introduction; Rated Data - Mettler Toledo InPro 6800 Serie Instructions D'utilisation

InPro 6800 Series O
2.7

Ex-classification ATEX

2.7.1 Introduction

According to Directive 2014/34/EU (ATEX 95)
Appendix l, lnPro 6XXX*/*/*/*/* oxygen sensors are
devices group ll, category 1/2G and according to
RL 99/92/EG (ATEX 137) may be used in zones
0/1 or 1/2 or 1 or 2 and gas groups llA, llB and llC that
are potentially explosive due to combustible sub-
stances in above stated temperature classes.
For use / installation, the requirements of EN 60079-
14 must be observed.
According to Directive 2014/34/EU (ATEX 95)
Appendix l, lnPro6XXX*/*/*/*/* oxygen sensors are
devices group ll,category 1/2D and according to
RL 99/92/EG (ATEX 137) may also be used in zones
20/21 or 21 or 22 that contain combustible dusts.
The digital sensor circuit is part of a common intrinsi-
cally safe system and is for operation connected to a
separately certified transmitter.
The digital sensor circuit as part of an intrinsically safe
system is isolated from the not-intrinsically safe electric
circuits up to a maximum rated voltage of 375 V and
from grounded parts up to a maximum rated voltage
of 30 V.

2.7.2 Rated data

Measuring circuit:
Fail-safe ignition protection class Ex ia IIC only for
connection to a certified fail-safe circuit.
Analog oxygen sensor maximum values:
U ≤ 16 V
i
I ≤ 190 mA
i
P ≤ 200 mW
i
L = 0 (effective internal inductance)
i
C = 900 pF (effective internal capacitance)
i
Note:
The above maximum values are each the total of all in-
dividual circuits of the associated intrinsically safe
power supply and transmitter.
© 12 / 2018 Mettler-Toledo GmbH
Printed in Switzerland
Sensor 12/25 mm
2
11
InPro 6800
52 200 953 B