Endress+Hauser Proline Promag 300 - Page 107

Proline Promag 300 Modbus RS485 Description of device parameters
Endress+Hauser 107
Additional information Description
• In the event of a device alarm, the current output adopts the value specified in the
Failure mode parameter (→  116).
• If the measured value is outside the measuring range, the diagnostic message
S441 Curr.output 1 to n is displayed.
• The measuring range is specified via the 0/4 mA value parameter (→  108) and
20 mA value parameter (→  109).
"Fixed current" option
The current value is set via the Fixed current parameter (→  107).
Example
Shows the relationship between the current span for the output of the process variable and
the lower and upper alarm levels:
I [mA]
12 3
A0034351
1 Current span for process value
2 Lower level for signal on alarm
3 Upper level for signal on alarm
Selection
Options 1 2 3
4...20 mA NAMUR 3.8 to 20.5 mA < 3.6 mA > 21.95 mA
4...20 mA US 3.9 to 20.8 mA US < 3.6 mA > 21.95 mA
4...20 mA 4 to 20.5 mA < 3.6 mA > 21.95 mA
0...20 mA 0 to 20.5 mA < 0 mA > 21.95 mA
If the flow exceeds or falls below the upper or lower signal on alarm level, the
diagnostic message S441 Curr.output 1 to n is displayed.
Fixed current 
Navigation  Expert → Output → Curr.output 1 to n → Fixed current (0365–1 to n)
Prerequisite The Fixed current option is selected in the Current span parameter (→  106).
Description Use this function to enter a constant current value for the current output.
User entry 0 to 22.5 mA
Factory setting 22.5 mA