Ex-Classification Atex; Introduction; Rated Data - Mettler Toledo InPro 6850i Instructions D'utilisation

InPro 6850 i / 6900 i / 6950 i O
2.6 Ex-classification ATEX

2.6.1 Introduction

According to Directive 94/9/EC (ATEX 95) Appen-
dix I, the O
devices of equipment group II, category 1/2G which,
according to Directive 99/92/EC (ATEX 137) can
be used in zones 0/1 or 1/2 or 1 or 2 as well as
gas groups IIA, IIB and IIC, which are potentially
explosive due to combustible substances in the
temperature T3 to T6.
The requirements specified in EN 60079-14 must be
observed during use / installation.
According to Directive 94/9/EC (ATEX 95) Appen-
dix I, the O
devices of equipment group II, category 1/2D which,
according to Directive 99/92/EC (ATEX 137) can
be used in zones 20/21 or 21/22 or 21 or 22, which
are potentially explosive due to combustible dust.
The requirements specified in EN 60079-14 must be
observed during use / installation.
For the analog version of the O
the O
ment circuit and data chip circuit are part of the
common intrinsically safe system and are jointly
connected to and operated by a separately certified
transmitter.
The digital version of the O
nected to and operated by two-wire cable to the
certified transmitter.
The intrinsically safe circuits are galvanically isolated
from the non-intrinsically safe circuits up to a nomi-
nal voltage peak value of 375 V and from the earthed
parts up to a nominal voltage peak value of 30 V.

2.6.2 Rated data

Analog O
With type of protection: intrinsic safety to Ex ia IIC
O measuring circuit, temperature measuring
2
circuit and data chip circuit
Only for connection to certified intrinsically safe
circuits. Maximum values:
U ≤ 16 V, I
i
L = 0 (effective internal inductance)
i
C = 900 pF (effective internal capacitance)
i
The values above apply, each as the sum of all the
individual circuits of the associated intrinsically safe
supply and evaluation unit (transmitter).
Digital O
With type of protection: intrinsic safety to Ex ia IIC
© 02 / 17 Mettler-Toledo GmbH
Printed in Switzerland
oxygen sensors type InPro 6XXX is a
2
oxygen sensors type InPro 6XXX is a
2
measurement circuit, temperature measure-
2
Oxygen sensor
2
≤ 190 mA, P
i
Oxygen sensor
2
Sensor 12 / 25 mm
2
2
oxygen sensor is con-
2
≤ 200 mW
i
InPro 6850 i / 6900 i / 6950 i
oxygen electrode,
52 206 349
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