Supply Power Or Supply Current - ABB FV4000 Operating Instruction

Ex relevant specifications

11.3.1 Supply power or supply current

1,8
1,6
1,4
1,2
1
0,8
0,6
0,4
0,2
0
10 14 20
Ex ib
Fig. 53
The minimum voltage U S of 14 V is based on a load of 0 Ω .
U S = supply voltage
R B = 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.
102
28 30 40 48
Ex nA [nL]
U S [V]
G00670
FV4000 / FS4000
11.3.2 Approval data for hazardous areas
Power supply
circuit
Type of protection
50
U = 60 V
m
Power supply
circuit
Type of protection
U = 60 V
m
When connected to the line supply / not connected to the line supply,
the electrical circuits must not exceed overvoltage category III / II.
Terminals 31, 32
Zone 1: Ex d [ib] IIC
T = (-40 °C) -20 ... 60 °C
amb
Zone 2: Ex nA [nL] IIC
T = (-40 °C) -20 ... 70 °C
amb
U = 14 ... 46 V
B
Zone 1: Ex ib IIC
T = (-40 °C) -20 ... 70 °C
amb
U = 28 V
i
I = 110 mA
i
P = 770 mW
i
Effective internal capacitance:
Effective internal capacitance
to ground:
Effective internal inductance:
Zone 21 / 22; Ex td A21 / Ex tD A22
T = -20 ... 60 °C
amb
Terminals 41, 42
Zone 1: Ex d [ib] IIC
Zone 2: Ex nA [nL] IIC
U = 16 ... 30 V
B
I = 2 ... 15 mA
B
Zone 1: Ex ib IIC
U = 15 V
i
I = 30 mA
i
P = 115 mW
i
Effective internal capacitance:
Effective internal capacitance
to ground:
Effective internal inductance:
Zone 21 / 22: Ex td A21 / Ex td A22
T = -20 ... 60 °C
amb
D184B097U02
14.6 nF
24.4 nF
0.27 mH
11.6 nF
19.6 nF
0.14 mH