Ex "D" / Ex "Ib" / Ex "N" Design For Vt42/St42 And Vr42/Sr42 (4 ... 20 Ma / Hart) - ABB FV4000 Operating Instruction

Change from one to two columns
11.3 Ex "d" / Ex "ib" / Ex "n" design for VT42/ST42
and VR42/SR42 (4 ... 20 mA / HART)
Important
The devices may only be operated in explosive areas if the
housing covers have been fully closed.
EC type-examination certificate TÜV 08 ATEX 554955 X
Designation
• Transmitter / Flowmeter
II 2G Ex d [ib] IIC T6
II 2G Ex ib IIC T4
II 2D Ex tD A21 T 85 °C ... T med IP 67
• Flowmeter sensor
II 2G Ex ib IIC T4
II 2D Ex tD A21 T 85 °C ... T med IP 67
Declaration of conformity TÜV 08 ATEX 554956 X
Designation on sensor / transmitter / flowmeter
II 3G Ex nA [nL] IIC T4
II 3D Ex tD A22 T85°C...T med IP67
Certificate of conformity IECEx TUN 08.0010 X
Designation:
Ex d [ib] IIC T6 to T1
Ex ib IIC T4 to T1
Ex tD A21 IP6X T85°C...T medium
Ex nA [nL] IIC T4 to T1
Ex ib
Ex nA [nL]
87 86 86 85 84 83 82
PA
Eex d [ib] Ex d [ib]
Ex ib Ex ib
Ex nA [nL] Ex nA [L]
31 32 41 42
PA
Fig. 52: Electrical connection for VT42 / ST42 and VR42 / SR42
1 Flowmeter sensor
2 Transmitter
D184B097U02
VR42/SR42
1
81
2 3
Ex d [ib]
Ex ib
Ex nA [nL]
31 32 41 42
PA
VT42/ST42
G00673
3 Flowmeter
Flowmeter sensor wire colors
Terminal
81
82
83
84
85
86
86
87
1) Supply power terminals 31 / 32
a) Ex ib:
b) Ex d [ib] / Ex nA [nL]
2) Switching output, terminals 41/ 42
The switching output (passive) is designed as an optocoupler. If
required, the switching output (passive) can be designed as a
NAMUR contact (to DIN 19234).
a) NAMUR with switching amplifier
b) Switching output (optocoupler)
- Ex ib:
- Ex d [ib] / Ex nA [nL]:
Important
Supply current (supply power) and switching output must be
either only intrinsically safe or only non-intrinsically safe. A
combination of the two is not permitted. On intrinsically safe
circuits, equipotential bonding must be in place along the
entire length of the cable used.
FV4000 / FS4000
Ex relevant specifications
Wire color
Red
Blue
Pink
Gray
Yellow
Green
Brown
White
U i = 28 V DC
U B = 14 ... 46 V DC
U i = 15 V
U B = 16 ... 30 V
I B = 2 ... 15 mA
101