Endress+Hauser Proline Prowirl 73 - Process Error Messages

Troubleshooting Proline Prowirl 73
68 Endress+Hauser
9.3 Process error messages
Process errors can be defined as either "Fault" or "Notice" messages and can thereby be weighted
differently. This is determined via the function matrix (ä 173, ERROR CATEGORY function).
!
Note!
• The listed error message types below correspond to the factory setting.
• Also observe the information on ä 38 and ä 71.
Type Error message / No. Cause Remedy / spare part
P = Process error
$
= Fault message (with an effect on the outputs)
! = Notice message (without an effect on the outputs)
P
!
P, T -> NO DATA -
$
# 412
No data are available in the measuring device for the
combination of the current values for the fluid pressure
and fluid temperature.
!
Note!
The measuring system outputs a notice message (!) if a
calculated parameter is assigned to an output but the
primary calculation data are missing (e.g. the density for
the mass flow).
Example: "#511 NO DATA - $ -> CURR."
• Check whether the right fluid was selected in the SELECT
FLUID function (ä 143).
• Check whether the right pressure was entered in the
OPERATING PRESSURE function (ä 150).
P
!
FLOW RANGE
# 421
The current flow velocity exceeds the limit value that is
specified in the LIMIT VELOCITY function (ä 142).
Reduce the flow.
P
!
REYNOLDS < 20 000
# 494
The Reynolds number is lower than 20 000. The
accuracy is reduced if the Reynolds number is < 20 000.
Increase the flow.
P
!
WET STEAM
# 525
The steam state for superheated steam, which is
calculated from the temperature and pressure, is close
(2 °C) to the saturated steam curve.
• Check whether steam is actually present.
• If you do not need the wet steam alarm, you can switch it off in
the WET STEAM ALARM function (ä 156).
P
!
NO STEAM
# 526
The measured temperature suggests that there is no
steam in the pipe. It is not possible to calculate the
quantity of heat.
Check whether there is steam in the pipe.