Endress+Hauser Proline Prowirl 73 - Current Output Functions

Proline Prowirl 73 Description of device functions
Endress+Hauser 119
11.10 CURRENT OUTPUT
Function description, CURRENT OUTPUT group
ASSIGN CURRENT Description
Use this function to assign a measured variable to the current output.
Options
VOLUME FLOW
TEMPERATURE
MASS FLOW
CORRECTED VOLUME FLOW
HEAT FLOW
CALCULATED SATURATED STEAM PRESSURE
FLOW VELOCITY
TEMPERATURE (EXTERNAL)
PRESSURE (EXTERNAL)
DENSITY (EXTERNAL)
Factory setting
See the parameter printout provided. The parameter printout is an integral part of these
Operating Instructions.
CURRENT SPAN Description
Use this function to specify the current span. You can configure the current output either
in accordance with the NAMUR recommendation or for the values common in the
United States.
Options
4-20 mA HART NAMUR
4-20 mA HART US
Factory setting
See the parameter printout provided. The parameter printout is an integral part of these
Operating Instructions.
Current span, operational range and signal on alarm level
A0006213
Fig. 33: Current span, operational range and signal on alarm level
A = Current span
m
= Operational range
n
= Lower signal on alarm level
o
= Upper signal on alarm level
p
= Scaled full scale value
Q = Flow
!
Note!
• A notice message is generated if the measured value is outside the measuring range
(defined in the VALUE 20 mA function, ä 120).
• The current output's response to errors is defined in the central FAILSAFE MODE
function (ä 118).
20
0
I [mA]
Q
m
n
o
p
A
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
nom