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7 Block OUTPUTS
Device Functions Proline Promag 55
58
Hauser
CURRENT SPAN
(4001)
Use this function to define the current span. The selection specifies the operational range
and the lower and upper signal on alarm. For the current output 1 the option HART can
be defined additionally.
Options
0–20 mA
4–20 mA
4–20 mA HART (only current output 1)
4–20 mA NAMUR
4–20 mA HART NAMUR (only current output 1)
4–20 mA US
4–20 mA HART US (only current output 1)
0–20 mA (25 mA)
4–20 mA (25 mA)
4–20 mA (25 mA) HART (only current output 1)
Factory setting:
4–20 mA HART NAMUR (for current output 1)
4–20 mA NAMUR (for all other current outputs)
!
Note!
• The option HART is only supported by the current output designated as current
output 1 in the device software, (terminals 26 and 27, see function TERMINAL
NUMBER (4080) on Page 67).
• When switching the hardware from an active (factory setting) to a passive output
signal select a current span of 4–20 mA (see Operating Instructions Promag 55,
BA119D/06)
Current span, operational range and signal on alarm level
A0001222
a = Current span
1 = Operational range (measuring information)
2 = Lower signal on alarm level
3 = Upper signal on alarm level
!
Note!
• If the measuring value exceeds the measuring range (as defined in the functions
VALUE 0_4 mA (4002) and VALUE 20 mA (4003)) a notice message is generated
(#351 to 354, current range).
• In case of a fault the behavior of the current output is according to the selected option
in the function FAILSAFE MODE (4006). Change the error category in the function
ASSIGN SYSTEM ERROR (8000) to generate a fault message instead of a notice
message.
Function description
OUTPUTS
➞
CURRENT OUTPUT (1 to 2)
➞
CONFIGURATION
1
2
3
I[mA]
a
1
2
3
0-20 mA
4-20 mA
4-20 mA NAMUR
4-20 mA US
0-20 mA (25 mA)
4-20 mA (25 mA)
0 - 20.5 mA
0
22
4 - 20.5 mA
2
22
3.8 - 20.5 mA
3.5
22.6
3.9 - 20.8 mA
3.75
22.6
0 - 24 mA
0
25
4 - 24 mA
2
25
4-20 mA HART
4 - 20.5 mA
2
22
4-20 mA HART NAMUR
3.8 - 20.5 mA
3.5
22.6
4-20 mA HART US
3.9 - 20.8 mA
3.75
22.6
4-20 mA (25 mA) HART
4 - 24 mA
2
25
Содержание Proline Promag 55
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