Ex-Classification Atex; Introduction; Rated Data - Mettler Toledo InPro 6950 Serie Bedienungsanleitung

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2.7 Ex-classification ATEX

2.7.1 Introduction

According to Directive 2014/34/EU (ATEX 114)
A ppendix l, lnPro 6XXX*/*/*/*/* oxygen sensors are
devices group ll, category 1/2G and according to
RL 99/92/EG (ATEX 137)
0/1 or 1/2 or 1 or 2 and gas groups llA, llB and llC
that are potentially explosive due to combustible
substances in above stated temperature classes.
For use / installation, the requirements of EN 60079-
14 must be observed.
According to Directive 2014/34/EU (ATEX 114)
A ppendix l, lnPro6XXX*/*/*/*/* oxygen sensors are
devices group ll, category 1/2D and according to
RL 99/92/EG (ATEX 137)
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
Intrinsically safe ignition protection class Ex ia IIC on-
ly for connection to a certified intrinsically safe circuit.
Analog O
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
h
Note: The above maximum values are each the total
of all individual circuits of the associated intrinsically
safe power supply and transmitter.
For UK statutory Requirements SI 2016 No. 1107
1)
For UK regulations 7 and 11 of the Dangerous Substances and
2)
Explosive Atmospheres Regulations 2002 (DSEAR)
InPro 6950
52 206 137 F
InPro 6950 Series O
oxygen sensor maximum values
2
may be used in zones
2)
may also be used in zones
2)
© 02 / 2023 METTLER TOLEDO
Printed in Switzerland
Sensor 12 mm
2
1)
1)