KNF LABOPORT Manual De Instrucciones página 80

Explosion protection
Designation
II
2/-G
Ex
h
IIB + H2
T3
Gb
Internal atmos-
phere only
16
4 Explosion protection
4.1 Using for transferring explosive
atmospheres
To transfer explosive atmospheres, only use pumps of the ap-
propriate device category and temperature class.
These pumps have the following EU explosion protection des-
ignations:
Description
Symbol for explosion-protected devices
Device group (see 4.3.1 Device groups [} 18])
Device category (see 4.3.2 Device categories for gas [} 19])
Symbol indicates that the device satisfies one or more ignition
protection types.
Symbol for ignition protection type (see 4.3.5 Ignition protec-
tion type [} 21])
Explosion groups (see 4.3.3 Explosion groups [} 20])
Temperature class (see 4.3.4 Temperature classes [} 21])
Equipment protection level (See Chapter 4.3.6 Equipment pro-
tection level for gas [} 22])
Special operating conditions (See Chapter Special operating
conditions)
Special conditions (see 4.3.7 Special operating conditions
[} 22])
Tab.5: Explosion protection designation
An ignition hazard assessment in accordance with standards
DIN EN ISO 80079-36 and DIN EN ISO 80079-37 was per-
formed for the pumps.
The explosion protection designation can also be found at the
following location:
§
Pump type plate
Translation of Original Operating Instruction, KNF 317428-317425 02/23
Chemically-resistant Laboratory pump N820.18 / N840.18