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Proline Prosonic Flow 91
Endress+Hauser
11.8
Group CURRENT OUTPUT
Functional description CURRENT OUTPUT
!
Note!
The functions of the CURRENT OUTPUT group are only available if the "0" value was entered in the BUS
ADDRESS function → ä 84.
CURRENT RANGE
Use this function to specify the current range. You can configure the current output either
in accordance with the NAMUR recommendation (max. 20.5 mA) or for a maximum
drive of 25 mA.
Options:
OFF
4-20 mA (25 mA)
4-20 mA (25 mA) HART
4-20 mA NAMUR
4-20 mA HART NAMUR
4-20 mA US
4-20 mA HART US
Factory setting:
4-20 mA (25 mA) HART NAMUR
Current span, operational range and signal on alarm level
A = Work range
m = Work range
n = Lower signal on alarm level
o = Upper signal on alarm level
p = Scaled full scale value
Q = Flow
!
• If the measured value is outside the measuring range (defined in the VALUE 20 mA
• The current output's response to faults is defined in the central FAILSAFE MODE
I [mA]
o
20
m
n
0
A
OFF
4-20 mA (25 mA)
4-20 mA (25 mA) HART
4-20 mA NAMUR
4-20 mA HART NAMUR
4-20 mA US
4-20 mA HART US
Note!
function → ä 78), a notice message is generated.
function → ä 99.
Description of device functions
Q
p
m
n
4 mA
-
4 - 24 mA
2
4 - 24 mA
2
3,8 - 20,5 mA
3,5
3,8 - 20,5 mA
3,5
3,9 - 20,8 mA
3,75
3,9 - 20,8 mA
3,75
o
-
25
25
22,6
22,6
22,6
22,6
a0005392
77
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