PROline Promass 80 9 Trouble-shooting
Endress+Hauser 69
9.4 Process errors without messages
Symptoms Rectification
Remark:
You may have to change or correct certain settings of the function matrix in order to rectify faults.
The functions outlined below, such as DISPLAY DAMPING, for example, are described in detail in the
“Description of Device Functions” manual.
Measured value reading
fluctuates even though flow
is steady.
1. Check the fluid for presence of gas bubbles.
2. In the “TIME CONSTANT” function (CURRENT OUTPUT 1, 2)
→
increase the value
3. In the “DISPLAY DAMPING” function (USER INTERFACE)
→ increase
the value
Measured value reading
shown on display, even
though the fluid is at a
standstill and the measuring
tube is full.
1. Check the fluid for presence of gas bubbles.
2. Activate the “ON-VAL. LF-CUTOFF” function (PROCESS
PARAMETER), i.e. enter or increase the value for the creepage.
The fault cannot be rectified
or some other fault not
described above has
occured.
In these instances, please
contact your E+H service
organisation.
The following options are available for tackling problems of this nature:
Request the services of an E+H service technician
If you contact our service organisation to have a service technician sent
out, please be ready with the following information:
– Brief description of the fault
– Nameplate specifications (Page 9 ff.): Order code and serial number
Returning devices to E+H
The procedures on Page 8 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
Components in the measuring electronics defective
→ order replacement → Page 72
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