8
HE 5411 Operating Instructions
#340411 | version 1.7
2.4
Device Identification
Note!
The HE 5411 differential pressure transducer is available in three
different designs. The corresponding device identification can be seen on
the nameplate. Devices with a measuring range of ± 1.25 mbar
(regardless of the device version) do
not
have any ATEX certification!
HE 5411 Lite
HE 5411 Basic
HE 5411 Premium
The devices with 19…36 V DC are marked with:
The devices with 100…240 V AC are marked with:
The devices with a measuring range of ±1.25 mbar are marked with:
II3D
Device category:
Use in Zone 22 for dust during normal operation
Ex
Denotes electrical equipment.
Standards of the EN 60079-0ff. series have been applied.
tc
Type of ignition protection: Protection by housing
IIIC
Explosion group:
conductive dusts
T135°C
Temperature class:
maximum permissible surface temperature
Dc
Device protection level:
Use in Zone 22 for dust
IP65
Protection type:
dust-tight and protected against water jets
