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In
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M
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15
Modules A – analog current
output – are used for flow data
transmission. There are 4 differ-
ent types available with various
ranges, accuracy and functions.
Outputs of A1 to A3, A5 and
A6 modules are active (forced
current) and are galvanically
isolated from other flowmeter
parts. Outputs can be loaded up
to 1000
Ω
. They can be plugged
only in position 7.
A4 and A7 modules have pas-
sive current output (it has to be
powered externally) and are
also galvanically isolated.
Unlike A1-A3, A5, A6 modules,
it can be plugged in positions 4,
5 and 6.
0..+Q output
0..-Q output
IQI output
-Q..+Q output
Fixed current
0..20
Depending on flow rate (see
diagrams), output can work in 5
modes:
The first four modes generate
output current dependent on
flow rate, the fifth mode enables
direct entering of current. Fol-
lowing 4 ranges can be se-
lected for all modes (except for
the fixed current mode):
A3, A4, A6 and A7 modules can
work only with range 4..20 mA.
0..20mA output
4..20mA output
0..10mA output
0..5mA output
Range
4..20mA
0..10mA
0..5mA
Flow rate / current
-Q
max
0
Q
max
-Q
max
0
Q
max
-Q
max
0
Q
max
-Q
max
0
Q
max
0..+Q output
0
0
20
4
4
20
0
0
10
0
0
5
0..-Q output
20
0
0
20
4
4
10
0
0
5
0
0
0..IQI output
20
0
20
20
4
20
10
0
10
5
0
5
-Q.+Q output
0
10
20
4
12
20
0
5
10
0
2,5
5
0..20mA
A1
Range 0(4)..20 mA
Resolution 12 bit
Accuracy ± 0.2%, ± 0.2mA
Active -
replaced by A5
A2
Range 0(4)..20 mA
Resolution 16 bit
Accuracy ± 0.1%, ± 0.1mA
Active -
replaced by A5
A3
Range 4..20 mA
Resolution 16 bit
Accuracy ± 0.1%, ± 0.1mA
Active -
replaced by A6
A4
Range 4..20 mA
Resolution 16 bit
Accuracy ± 0.1%, ± 0.1mA
Passive -
replaced by A7
A5
Range 0(4)..20 mA
Resolution 16 bit
Accuracy ± 0.1%, ± 0.1mA
Active
A6
Range 4..20 mA res. 16 bit
Accuracy ± 0.1%, ± 0.1mA
Active
- compatible with
module H1 ( HART )
A7
Range 4..20 mA res. 16 bit
Accuracy ± 0.1%, ± 0.1mA
Passive
- compatible with
module H1 ( HART )
Current output modules A1 – A4
Fig. 0..+Q output
Fig. 0..+Q output
Fig. IQI output
Fig. -Q..+Q output
Fig. Menu structure of A modules
7.Current output
→
●
0..+Q output
○
0..20mA output
»Imax flow rate
○
0..-Q output
●
4..20mA output
○
0..|Q| output
○
0..10mA output
○
-Q..+Q output
○
0..5 mA output
○
Fixed current
»Fixed current [mA]
12 13
A5
0.
.2
0
m
A
C
ur
re
nt
o
ut
pu
t
+
-
A
+
-
10 11
A7
4.
.2
0
m
A
C
ur
re
nt
o
ut
pu
t
+ -
A
+
+
-
Modules A6 and A7 enables
with module H1 (Bell 202 mo-
dem) to communicate through
current loop with a protocol
compatable with HART (only
Universal Commands)
