KROHNE BM 26 BASIC-ADVANCED ATEX EN - Manual (Page 12)

2
LIMIT SWITCH
12
BM 26 BASIC/ADVANCED
www.krohne.com 12/2011 - 4000347102 - AD ATEX BM 26 Bas-Adv R02 en
2.2 Installation
2.2.1 Precautions
General notes
Special conditions
2.2.2 Operating conditions
The ATEX equipment category and temperature class give the ambient temperature range for
the limit switch. This data is marked on the nameplate of the limit switch.
Equipment category II 1 G (Ex i applications and non-Namur devices only)
Equipment category II 1 G (Ex i applications and Namur devices only)
WARNING!
When you install the device, obey the conditions in the EC-Type Examination certificate. These
conditions include:
• The special conditions for safe use.
• The Essential Health and Safety Requirements.
DANGER!
This installation must agree with EN 60079-14: Electrical installations in hazardous areas.
WARNING!
Equipment category 1 G only
Equipment category 1 G only Equipment category 1 G only Equipment category 1 G only
The housing of the device is a possible source of ignition in a potentially explosive atmosphere. It
is made of aluminium.
Install the device in an applicable location to make sure that iron/steel objects do not hit or rub
against aluminium parts.
Temperature class Ambient temperature
[°C] [°F]
T6 -40…+80 -40…+176
T5 -40…+95 -40…+203
T4 -40…+130 -40…+266
Temperature class Ambient temperature
[°C] [°F]
T6 -40…+70 -40…+158
T5 -40…+85 -40…+185
T4 -40…+120 -40…+248