VEGA VEGAPULS 51V…54V - Manual (Page 25)

VEGAPULS 51 V … 54 V 25
Technical data - Approvals
3.3 Approvals
When using radar sensors in Ex and St-Ex-
areas, the instrument must be suitable and
approved for these explosion zones and
applications.
For the use on ships, special type approvals
are available.
The suitability is tested by the approval
authorities and certified by approval
documents.
VEGAPULS 51 V Ex (0) to 54 V Ex (0)
sensors must be supplied from one
intrinsically safe circuit when used in Ex-
areas. This is ensured by the separators
VEGATRENN 548 V Ex.
The separator provides intrinsically safe (ia)
circuits.
The resistance of the signal line must not
exceed 15
Ω per wire.
VEGAPULS 51 V Ex … 54 V Ex sensors are
approved for Ex-Zone 1.
VEGAPULS 51 V Ex 0 … 54 V Ex 0 sensors
are approved for Ex-Zone 0.
Please note the attached approval
documents when you want to use a sensor in
Ex-environment.
Test and approval authorities
VEGAPULS radar sensors are tested and
approved by the following monitoring and
approval authorities:
- PTB
(Physikalisch Technische Bundesanstalt -
Physical Technical Approval Authority)
- FM
(Factory Mutual Research)
- ABS
(American Bureau of Shipping)
- LRS
(Lloyds Register of Shipping)
- G L
(German Lloyd)
- CSA
(Canadian Standards Association)