3.10
Explosion protection in accordance with ATEX
3.10.1
Operation in potentially explosive atmosphere
3G / Zone 2: Connection unit and sender/receiver unit
The GM700 Ex complies with ATEX Directive 2014/34/EU with the
following characteristics:
•
X
II 3/-G Ex pzc op is [ia] IIC T4 Gc/-
•
Special conditions (X identification):
°
A measuring function for explosion protection is not part of the
EC type approval
•
Explosion protection relating to optical radiation in the measuring
channel
The explosion protection relating to optical radiation in the measur‐
ing channel is satisfied in accordance with the temperature range
(-20°... +60 °C) specified by ATX/IECEx. The plant operator must
evaluate Ex atmospheres possibly present for exhaust gas temper‐
atures exceeding this range separately and take suitable protective
measures!
w
Location of Ex relevant subassemblies, see Chapter “Design
and Function”.
w
Do not remove, add or modify any components to or on the
device unless described and specified in the official manufac‐
turer information. Otherwise the approval for the device for
use in potentially explosive atmospheres becomes void.
w
Adhere to the maintenance intervals, see Chapter “Mainte‐
nance plan”.
w
After switching off the main power supply: Wait 20 minutes
before opening the enclosure.
3
PRODUCT DESCRIPTION
20
O P E R A T I N G I N S T R U C T I O N S | GM700 Ex
8019532/100Q/V1-1/2018-08 | SICK
Subject to change without notice