Diaphragm pump N87.9 EX
Use
Translation of Original Operation and Installation Instruction, english, KNF 323252 04/21
11
2.4.6 Equipment protection level for gas
The equipment protection level describes the frequency and the duration
of the occurrence of explosive atmospheres in an area.
Equipment
protection
level
Description*
Constructional
safety
Ga
Devices with very high protection level
for use in potentially explosive areas.
With these devices, there is no risk of ig-
nition during normal operation or in the
event of foreseeable or infrequent faults/
malfunctions.
Very high
Gb
Devices with high protection level for
use in potentially explosive areas in
which there is no risk of ignition during
normal operation or in the event of fore-
seeable or infrequent faults/malfunc-
tions.
High
Gc
Device with increased protection level
for use in potentially explosive areas.
There is no risk of ignition during normal
operation. The devices have a number
of additional protection measures which
ensure that, in the event of commonly
foreseeable faults in the device, no dan-
ger of ignition exists.
Increased
Tab.8 *according to DIN EN ISO 80079-36
2.4.7 Special operating conditions
§
The pumps may not be set up outdoors. Commissioning may only be
performed with suitable weather- and corrosion-protection paneling.
§
The pumps are to be set up so that they are not exposed to any UV ra-
diation.
