50 CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | CI/FCB400/FCH400-EN REV. H
… 6 Electrical connections
… Electrical data for inputs and outputs
Digital output 41 / 42, 51 / 52 (basic device)
Can be configured as pulse, frequency or binary output via on-
site software.
A Digital output 41 / 42, 51 / 52 passive as a pulse or frequency output
B Passive digital output 51 / 52 as binary output
Figure 33: (I = internal, E = external, R
B
= load)
Pulse / frequency output (passive)
Terminals 41 / 42, 51 / 52
Output ‘closed’ 0 V ≤ U
CEL
≤ 3 V
For f < 2.5 kHz: 2 mA < I
CEL
< 30 mA
For f > 2.5 kHz: 10 mA < I
CEL
< 30 mA
Output ‘open’ 16 V ≤ U
CEH
≤ 30 V DC
0 mA ≤ I
CEH
≤ 0.2 mA
f
max
10.5 kHz
Pulse width 0.05 to 2000 ms
Binary output (passive)
Terminals 41 / 42, 51 / 52
Output ‘closed’ 0 V ≤ U
CEL
≤ 3 V
2 mA ≤ I
CEL
≤ 30 mA
Output ‘open’ 16 V ≤ U
CEH
≤ 3 V DC
0 mA ≤ I
CEH
≤ 0.2 mA
Switching function Can be configured using software.
Note
• Terminals 42 / 52 have common grounding. Digital outputs
41 / 42 and 51 / 52 are not electrically isolated from each
other. An electrically isolated digital output can be made
using a plug-in module.
• If using a mechanical counter, it is advisable to set a pulse
width of ≥ 30 ms and a maximum frequency of f
max
≤ 3 kHz.
Current output V1 / V2, V3 / V4 (plug-in module)
Up to two additional plug-in modules can be implemented via
the ‘Passive current output (red)’ option module.
Can be configured for outputting mass flow, volume flow,
density and temperature via on-site software.
A Current output V1 / V2, passive B Current output V3 / V4, passive
Figure 34: (I = internal, E = external, R
B
= load)
The plug-in module can be used in slot OC1 and OC2.
Permissible source voltage U
q
for passive outputs in relation to load
resistance R
B
where Imax = 22 mA. = Permissible range
Figure 35: Source voltage for passive outputs
Passive current output
Terminals V1 / V2, V3 / V4
Output signal 4 to 20 mA
Load R
B
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.
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