VEGA VEGAPULS 56K - Manual (Page 57)

VEGAPULS 56K 57
22915-EN-041227
7.3 Approvals
When radar sensors are used in Ex and
dust-Ex areas or on ships, the instruments
must be suitable and approved for the explo-
sion zones and applications.
The suitability is checked by the approval
authorities and is certified in approval docu-
ments.
VEGAPULS 56 radar sensors are approved
for Ex-Zone 1 and Zone 0.
Please note the attached approval docu-
ments (yellow binder) when using a sensor in
Ex area.
Test and approval authorities
VEGAPULS radar sensors are tested and
approved by the following monitoring, test
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)
Ex area Zone 0/Zone 1
Series 50 sensors require for operation in Ex
area special safety barriers or separators
providing intrinsically safe (ia) circuits.
The following shows a selection of instru-
ments with which VEGAPULS 56 sensors
work reliably. In conjunction with separators,
the resistance of the signal cable and the
separator resistance (voltage loss of the
separator) must not exceed the max. load
(see load diagram in chapter „3.1 Data“).
Technical data
Ex area Zone 0/Zone 1 without Exd con-
nection housing:
Separator and signal conditioning instru-
ment:
• VEGADIS 371 Ex
Separator:
• VEGATRENN 149 Ex
• Stahl 9303/15/22/11
• Knick WG 21 A 7 (opt. 470, 336)
• CEAG GHG 124 3111 C1206
Safety barrier:
• Stahl 9001/01/280/085/10
• Stahl 9001/01/280/110/10
• Stahl 9001/01/280/165/10
• CEAG GHG 11 1 9140 V0728
Pressure-tight encapsulated in Ex area
Series 50 sensors in EEx d ia (pressure-tight
encapsulated) version can be used in Ex
areas without special safety barriers due to
their pressure-tight encapsulated terminal
compartment (provided the appropriate
installation regulations are observed).
SIL conformity and IEC 61508 /
IEC 61511
VEGAPULS radar sensors meet the require-
ments on functional safety acc. to IEC 61508 /
IEC 61511. For further information see Sup-
plement under „Safety Manual“.