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Ex relevant specifications
8
Ex relevant specifications
8.1
Potentially explosive atmospheres
Change from one to two columns
ATEX - Transmitter with type of protection "intrinsic safety Ex ia"
in accordance with Directive 94/9/EC
Transmitter with 4 ... 20 mA output signal and HART communication:
Certificate no.
ZELM 01 ATEX 0064
Designation:
II 1/2G
II 1D
Ta
Power supply and signal circuit with type of protection "intrinsic safety
Ex ib IIB/IIC" or "intrinsic safety Ex ia IIB/IIC", for connection to supply
units with the following maximum values:
U
= 30 V
i
I
= 200 mA
i
Temperature class T4 or T95°C:
P
= 0.8 W for T4 where Ta = -40 ... 85 °C
i
P
= 1.0 W for T4 where Ta = -40 ... 70 °C
i
For temperature class T6 or T50 ° C:
P
= 0.7 W for T6 where Ta = -40 ... 40 °C
i
Effective internal capacitance: C
Effective internal inductance:
265Gx/Ax transmitters with measuring ranges of 400 mbar, which
are supplied by an intrinsically safe circuit (Ex ib IIB/IIC), must not be
integrated into the partition between Category 1G and 2G.
Fieldbus transmitter (PROFIBUS PA / FOUNDATION Fieldbus):
Certificate no.:
ZELM 01 ATEX 0063
Designation:
FISCO field device
II 1/2G Ex ia IIC T6
II 1/2D Ex iaD 20 T50 °C
Power supply and signal circuit with type of protection "intrinsic
safety", only for connection to supply units certified according to the
FISCO concept and with the following maximum values:
U
= 17.5 V
i
I
= 500 mA
i
P
= 8.75 W
i
or connection to supply units or barriers with linear characteristics.
Maximum values:
U
= 24 V
i
I
= 250 mA
i
P
= 1.2 W
i
Effective internal inductance:
Effective internal capacitance: C
66
Ex ia IIC T6
or T4
Ex iaD 20 T50°C
or T95°C
-40°C... 40°C
or 85°C
10 nF
i
0
L
i
or T4
or T95 °C
L
= 10 μ H,
i
= 5 nF
i
Permissible ambient temperature range according to temperature
class:
Temperature class
T4
T5, T6
265Gx/Ax transmitters with measuring ranges of 400 mbar, which
are supplied by an intrinsically safe circuit (Ex ib IIB/IIC), must not be
integrated into the partition between Category 1G and 2G.
ATEX - Category 3 transmitter for use in "Zone 2" as defined by
Directive 94/9/EC
Transmitter with 4 ... 20 mA output signal and HART communication:
Certificate no.:
Designation:
Operating conditions:
Supply and signal circuit (terminal signal ±):
U 45 V DC
I 22.5 mA
Permissible ambient temperature ranges:
Type of protection "non-sparking nA"
II 3G Ex nA [nL] IIC T6
Ambient temperature
-40 ... +40 °C
-40 ... +85 °C
Type of protection "protection by enclosure tD"
II 3D Ex tD A22 T50°C
Ambient temperature
-40 ... +40 °C
-40 ... +85 °C
ATEX - Transmitter with type of protection "flameproof enclosure
Ex d" in accordance with Directive 94/9/EC
Transmitter with 4 ... 20 mA output signal and HART communication,
and fieldbus transmitter (PROFIBUS PA / FOUNDATION Fieldbus /
MODBUS 232 / MODBUS 485):
Certificate no.:
Designation:
Operating conditions:
Supply and signal circuit (terminal signal ±)
Operating values:
HART
U ≤ 45 V DC
I ≤ 22.5 mA
Ambient temperature range: -40 ... 75 °C
265Gx, 265Ax
Lower limit of
ambient
temperature
-40 °C (-40 °F)
-40 °C (-40 °F)
ZELM 01 ATEX 3059
II 3G
Ex nA [nL] IIC T6
II 3D
Ex tD A22 T50°C
or
T4:
Temperature class
T6
T4
or
T95°C
Surface temperature
T50°C
T95°C
PTB 00 ATEX 1018
II 1/2 G Ex d IIC T6
Fieldbus PA/FF
Modbus 232 / 485
U ≤ 36 V DC
U ≤ 30 V DC
I ≤ 14 mA
I ≤ 25 mA
IM/265Gx/Ax-EN-07
Upper limit of
ambient
temperature
85 °C (185 °F)
40 °C (104 °F)
or T4
or T95°C IP6x
IP6x:
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