Process Errors Without Message; Response Of Outputs To Errors; Spare Parts - Endress+Hauser Dosimass Operating Instructions Manual

Dosimass
Endress+Hauser
9.6

Process errors without message

Symptoms
Measured value reading shown on
display, even though the fluid is at a
standstill and the measuring tube is
full.
The fault cannot be rectified or
some other fault not described
above has occurred.
In these instances, please contact
your Endress+Hauser service
organization.
9.7

Response of outputs to errors

Failsafe mode of pulse and status output
Output
Pulse output
Status output
9.8

Spare parts

The previous sections contain a detailed troubleshooting guide ä 24. The measuring device,
moreover, provides additional support in the form of continuous self-diagnosis and error messages.
Fault rectification can entail replacing defective components with tested spare parts. The illustration
below shows the available scope of spare parts.
Rectification
1. Check the fluid for presence of gas bubbles.
2. Activate the ON-VAL. LF-CUTOFF function, i.e. enter or increase value for the
switch point ä 47.
The following options are available for tackling problems of this nature:
Request the services of an Endress+Hauser service technician
If you contact our service organization to have a service technician sent out, please
be ready with the following information:
– Brief description of the fault
– Nameplate specifications (ä 6): Order code and serial number
Returning devices to Endress+Hauser
The procedures on ä 5 must be carried out before you return a flowmeter
requiring repair or calibration to Endress+Hauser. Always enclose a duly completed
"Declaration of contamination" form with the flowmeter. You will find a preprinted
"Declaration of contamination" form at the back of this manual.
Replace transmitter electronics
Electronics module defective  order spare part ä 23
Failsafe mode
!
Note!
The failsafe mode of the pulse output can be configured differently with the aid of
the FieldCare operating program ä 46:
FALLBACK VALUE
Signal output  no pulses
ACTUAL VALUE
Fault is ignored, i.e. normal measured value output on the basis of ongoing flow
measurement.
"
Caution!
Notice messages do not have any impact on the pulse output! See the information on
ä 26.
!
Note!
The assignment of the status output can be defined via the FieldCare operating
program ä 46.
In the event of a fault or notice or if the power supply fails  status output not
conducting
Troubleshooting
29