Endress+Hauser Proline Promag 300 - Page 113

Proline Promag 300 Modbus RS485 Description of device parameters
Endress+Hauser 113
Flow components outside the span are buffered, balanced and output after a maximum
delay of 60 s.
t
S = A
A
S
I [mA]
A0028094
I Current
t Time
S Flow components saved
A Balancing of saved flow components
Example 2
Defined measuring range: lower range value and upper range value with different signs
20
0
0
I [mA]
4
Q
1
2
A0028095
 5 Measuring range
I Current
Q Flow
1 Lower range value (value assigned to 0/4 mA current)
2 Upper range value (value assigned to 20 mA current)
With flow a (—) outside, b (- -) inside the measuring range
t
a =
b =
Q
0
+
-
2
1
A0028098
Q Flow
t Time
1 Lower range value (value assigned to 0/4 mA current)
2 Upper range value (value assigned to 20 mA current)
With Forward flow option
• a (—): The flow components outside the scaled measuring range cannot be taken into
account for signal output.
The diagnostic message S441 Curr.output 1 to n is displayed.
• b (- -): The current output signal is proportional to the process variable assigned.