Ex relevant specifications
104
FV4000-VT4/VR4 / FS4000-ST4/SR4
D184B097U02
11 Ex relevant specifications
11.1 General technical data for hazardous areas
11.1.1 HART devices
Models designed for hazardous areas with ATEX / IECEx approval
Models
Approvals
VT41 / ST41 / VR41 / SR41 • Operation in Zone 1:
Ex ib IIC (intrinsically safe supply)
• Operation in Zone 2:
Ex nA [nL] IIC (non-intrinsically safe supply)
• Operation in Zone 21 / 22:
Ex tD A21 / Ex tD A22 (non-intrinsically safe supply or
intrinsically safe supply)
Important
All types of protection are noted on the name plate.
Flowmeters operating in Category 3 (Zone 2 / 22) may subsequently be operated in Category
2 (Zone 1 / 21) without modification.
The respective applicable maximum values must be complied with.
Models
Approvals
VT42 / ST42 / VR42 / SR42 • Operation in Zone 1:
Ex d [ib] IIC (non-intrinsically safe supply)
• Operation in Zone 1:
Ex ib IIC (intrinsically safe supply)
• Operation in Zone 2:
Ex nA [nL] IIC (non-intrinsically safe supply)
• Operation in Zone 21 / 22:
Ex tD A21 / Ex tD A22 (non-intrinsically safe supply or
intrinsically safe supply)
Important
All types of protection are noted on the name plate. In the case of operation in Zone 1, the
user specifies the type of protection by means of the type of supply.
Flowmeters operated in Category 3 (Zone 2) may subsequently be operated in Category 2
(Zone 1) without modification. Within Category 2, the Ex d [ib] design may subsequently be
operated as EX ib without modification.
The respective applicable maximum values must be complied with. The significant differences
between models are listed in the table titled "Differences between explosion-proof designs with
regard to safety engineering". Detailed descriptions appear later in this section.
Summary of Contents for FV4000-VT4
Page 125: ...Appendix D184B097U02 FV4000 VT4 VR4 FS4000 ST4 SR4 125 ...
Page 126: ...Appendix 126 FV4000 VT4 VR4 FS4000 ST4 SR4 D184B097U02 ...
Page 127: ...Appendix D184B097U02 FV4000 VT4 VR4 FS4000 ST4 SR4 127 ...
Page 128: ...Appendix 128 FV4000 VT4 VR4 FS4000 ST4 SR4 D184B097U02 ...
Page 129: ...Appendix D184B097U02 FV4000 VT4 VR4 FS4000 ST4 SR4 129 ...
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