48 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | CI/FCB400/FCH400-EN REV. H
… 6 Electrical connections
Electrical data for inputs and outputs
Note
When using the device in potentially explosive atmospheres,
note the additional temperature data in Use in potentially
explosive atmospheres on page 6!
Power supply L / N, 1+ / 2−
AC voltage
Terminals L / N
Operating voltage 100 to 240 V AC, 50 / 60 Hz
Power consumption < 20 VA
DC voltage
Terminals 1+ / 2−
Operating voltage 19 to 30 V DC
Power consumption < 20 W
Requirements for inputs and outputs
For reasons of electromagnetic compatibility (EMC), shielded
cables should be used in certain output configurations; this is
presented in the table below.
The cable shielding must be inserted in the device, see
Connection to integral mount design on page 56 and
Connection to remote mount design on page 58.
Use of shielded cables
Transmitter Plug-in card used Terminal
Uco/31/32
41/42
51/52
V1/V2
V3/V4
Dual-
compartment
housing
Active digital
output V1/V2
— — — X —
Active digital
output V3/V4
— — — — X
Modbus V1/V2 — — — X —
Profibus DP V1/V2 — — — X —
Single-
compartment
housing
Active digital
output V1/V2
X X X — X
Active digital
output V3/V4
X X X X —
Modbus V1/V2* — — — X —
Profibus DP V1/V2* — — — X —
Ethernet V1/V2 X X X X X
Ethernet V1/V2,
POE V3/V4
X X X X X
X Use shielded cables
* Use in remote mount design only
Current output 32 / Uco, 31 / 32 (basic device)
Can be configured for outputting mass flow, volume flow,
density and temperature via on-site software.
A Current output 31 / Uco, active B Current output 31 / 32, passive
Figure 29: (I = internal, E = external, R
B
= load)
Permissible source voltage U
q
for passive outputs in relation to load
resistance R
B
where I
max
= 22 mA. = Permissible range
Figure 30: Source voltage for passive outputs
Current output Active Passive
Terminals Uco / 32 31 / 32
Output signal 4 to 20 mA or 4 to 12 to 20 mA switchable
Load R
B
250 Ω ≤ R
B
≤ 300 Ω 250 Ω ≤ R
B
≤ 600 Ω
Source voltage U
*
13 V ≤ U
≤ 30 V
Measuring error < 0.1 % of measured value
Resolution 0.4 µA per digit
* The source voltage U
q
is dependent of the load R
B
and must be placed in an
additional area.
For information on communication via the HART protocol, refer
to HART® Communication on page 61.
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