ABB FS4000, Руководство по эксплуатации

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Ex relevant specifications
102 FV4000 / FS4000 D184B097U02
11.3.1 Supply power or supply current
G00670
1,8
1,6
1,4
1,2
1
0
10 14 28 48 20 30
Ex ib
Ex nA [nL]
40 50
U
S
[V]
0,8
0,6
0,4
0,2
B
R[
K
]
Ω
Fig. 53
The minimum voltage US
of 14 V is based on a load of 0 Ω .
US = supply voltage
RB = Maximum permissible load in power supply circuit, e.g.,
indicator, recorder or power resistor
Important
The installation instructions in accordance with EN 60079-14
must be complied with.
When commissioning the flowmeter, refer to EN 50281-1-2
regarding use in areas with combustible dust. After switching
off the supply power, wait t > 2 minutes before opening the
transmitter housing.
11.3.2 Approval data for hazardous areas
Power supply
circuit Terminals 31, 32
Zone 1: Ex d [ib] IIC
T
amb
= (-40 °C) -20 ... 60 °C
Zone 2: Ex nA [nL] IIC
T
amb
= (-40 °C) -20 ... 70 °C
U
B
= 14 ... 46 V
Zone 1: Ex ib IIC
T
amb
= (-40 °C) -20 ... 70 °C
U
i
= 28 V
I
i
= 110 mA
P
i
= 770 mW
Effective internal capacitance: 14.6 nF
Effective internal capacitance
to ground:
24.4 nF
Effective internal inductance: 0.27 mH
Type of protection
U
m
= 60 V
Zone 21 / 22; Ex td A21 / Ex tD A22
T
amb
= -20 ... 60 °C
Power supply
circuit Terminals 41, 42
Zone 1: Ex d [ib] IIC
Zone 2: Ex nA [nL] IIC
U
B
= 16 ... 30 V
I
B
= 2 ... 15 mA
Zone 1: Ex ib IIC
U
i
= 15 V
I
i
= 30 mA
P
i
= 115 mW
Effective internal capacitance: 11.6 nF
Effective internal capacitance
to ground:
19.6 nF
Effective internal inductance: 0.14 mH
Type of protection
U
m
= 60 V
Zone 21 / 22: Ex td A21 / Ex td A22
T
amb
= -20 ... 60 °C
When connected to the line supply / not connected to the line supply,
the electrical circuits must not exceed overvoltage category III / II.