ABB TTF200 Operating Instructions Manual page 14

14 TTF200 FIELD-MOUNT TEMPERATURE TRANSMITTER | OI/TTF200-EN REV. B
... 4 Product identification
... Name plate
Explosion protection marking for devices with one type of
protection
Devices with an explosion-proof design are marked with the
following additional plates.
Note
• Further information on the approval of devices for use in
potentially explosive atmospheres can be found in the
explosion protection test certificates (at
www.abb.com/temperature).
• Depending on the design, a specific marking in accordance
with ATEX or IECEx applies.
1 Type designation in accordance
with approval
2 Approval number
3 Protection class of the explosion-
proof design (explosion
protection marking)
4 Type designation
Figure 10: Additional plate for explosion-protected apparatus (example)
Explosion protection marking for devices with a
combination of explosion protection types
Coding of the type of protection of the device in accordance
with order information can also refer to a combination of
different explosion approvals for various types of protection.
1 Checkboxes for marking type of protection
Figure 11: Combination of 'Intrinsic safety' and 'Flameproof (enclosure)' types of
protection, coding of type of protection: E4.
5 Temperature class of the
explosion-proof design
6 CE mark (EU conformity) and
notified body for quality
assurance
7 Ex marking
Measures required before the use of devices with combined
types of protection
NOTICE
Note for temperature transmitters with combined approval
Before the transmitter is installed, the selected type of
protection must be permanently marked on the explosion
protection certification plate.
The transmitter can then only be operated with this type of
protection throughout its entire service life.
• If two protection types are indelibly marked on the
explosion protection certification plate, the transmitter
must not be used in areas categorized as hazardous.
Devices with combined types of protection may only be
operated in one of the possible types of protection.
Before commissioning, users must decide on one of these types
of protection and their corresponding approval.
The 'E4' coding combines the following types of protection:
'Intrinsic safety', type 'TTF200-E1' and 'Flameproof (enclosure)',
type 'TTF200-E3'.
The additional plate has two selection fields (see Figure 11) for
marking.
It is absolutely necessary to mark one of the selection fields on
the left side indelibly in accordance with the selected type of
protection of the application. This has to be done before the
TTF200 is commissioned in the application.
The marking must be applied in a permanent and indelible
manner, for example using a caustic or acidic pencil or by
stamping on a metallic plate.
Unmarked devices must NOT be commissioned.