SICK DUSTHUNTER SP100 Ex-2K, Operating Instructions Manual, Page: 32 / 130

32 8024493/AE00/V1-0/2020-09| SICK O P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-2K
Subject to change without notice
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PRODUCT DESCRIPTION
3.4 Explosion protection in accordance with ATEX
3.4.1 Operation in Ex-area
DUSTHUNTER SP100 Ex-2K sender/receiver unit
The marking of the electrical explosion-proof device is:
ATEX II 2G Ex db op is IIC T6 Gb / ATEX II 2D Ex tb op is IIIC T85°C Db
●
The marking is on the type plate
●
EU Type Examination Certificate: BVS 20 ATEX E 074 X
IECEx BVS 20.0079X
●
The thermal insulation is an explosion protection measure to be subjected to
special examination for media temperatures higher than the surface
temperature allowed by the selected temperature class. Observe the
following during this examination:
– Parts of the device surface that can be subjected to prohibited high
temperatures due to the media temperatures must be included in the
insulation or the heat conduction must be prevented.
– It must be ensured that the surface temperature of the flameproof device
remains below 60 °C. At nominal operation, the internal heating of the
device can be up to 2 K.
It must be ensured that the dust measuring device is permanently supplied
with purge gas.
MCUDH Ex-3K control unit
The marking of the electrical explosion-proof device depends on the device
selection (
see “Technical data”, page 118 ).
●
The marking is on the type plate
●
EU-Type Examination Certificate: BVS 20 ATEX E 043 X
Letter “X” after the certificate number indicates the following special
condition for the safe use of the device:
–
It must be ensured that the transient protection is set to a value not
exceeding 140% of the
measured peak voltage on the supply terminals of
the device.
– Only operate the device at maximum with degree of contamination 2.
NOTE:
Hazard when operating in potentially explosive atmospheres
Risk of explosion when regulations on explosion protection are not observed during
operation.
▸
Only use the measuring system in potentially explosive atmospheres according to the
device identification (
see “Intended use”, page 17 ).
▸
Only use the measuring system within the temperature limits as specified in these
Operating Instructions as well as on the type plate.
The specified values must not be exceeded even for brief periods.
▸
The use of the measuring system with hybrid mixtures (mixture of combustible gases
or vapors with dust) must be evaluated according to the situation being considered,
e.g. regarding concentration limits or energy and temperature limits.
▸
Do not install any components, apart from the electronics unit of the sender/receiver
unit, in lines, tanks, or other installation areas where explosive gas and/or dust
mixtures may be present.
▸
The measuring system must not be operated with dust deposits thicker than 5 mm
on the electronics housing.
▸
Dust deposits must be removed regularly and properly.