Purpose Of The Device; Operation In Potentially Explosive Atmosphere - SICK GM32 Ex Operating Instructions Manual

2.3.1

Purpose of the device

2.3.2

Operation in potentially explosive atmosphere

8015558/1O6S/V1-9/2024-08 | SICK
Subject to change without notice
The device serves exclusively for emission and process monitoring of gases in industrial
plants.
The device measures continuously directly in the gas duct (in-situ).
3G / Zone 2: Connection unit and sender/receiver unit
• The GM32 Ex corresponds to the ATEX category (according to ATEX
2014/34/EC):
X II 3G Ex pzc op is [ia] IIC T3 Gc
•
GM32 Ex meets the following IECEx qualification:
Ex pzc op is [ia] IIC T3 Gc
•
Special conditions (X identification)
A measuring function for explosion protection is not part of the
°
EC type approval
The duct with sample gas contact must be a non-potentially
°
explosive atmosphere when overpressure against the atmos‐
phere is present in the duct
If the duct has underpressure against the atmosphere, this
°
area may correspond to Zone 2
• Observe the Ex identification.
The Ex identification is on the type plate. Example:
SICK
GM32-xxx-EX3G (xxx=internal type number)
SN: yyyy yyyyy (serial number)
-20 °C ≤ Ta ≤ 55 °C
X
• Explosion protection relating to optical radiation in the measuring
channel
The explosion protection relating to optical radiation in the meas‐
uring 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
temperatures exceeding this range separately and take suitable
protective measures!
Location of Ex relevant subassemblies, see Chapter "Design
►
and Function".
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.
Adhere to the maintenance intervals, see Chapter "Mainte‐
►
nance plan".
After switching off the main power supply: Wait 20 minutes
►
before opening the enclosure.
SAFETY INFORMATION
O P E R A T I N G I N S T R U C T I O N S | GM32 Ex
2
13