Proline Promass 83 PROFIBUS DP/PA Trouble-shooting
Endress+Hauser 135
9.4 Process errors without messages
705 P FLOW LIMIT
$ # 705
0x42 UNCERTAIN Non specific
(uncertain
status)
High
Limited
Flow limit Cause:
The mass flow is too high. The electronics' measuring
range will be exceeded.
Remedy:
Reduce flow
731 P ADJ. ZERO FAIL
! # 731
0x43 UNCERTAIN Non specific
(uncertain
status)
Constant Zeropoint
adjustment
failure
Cause:
The zero point adjustment is not possible or has been
cancelled.
Remedy:
Make sure that zero point adjustment is carried out at
“zero flow” only (v = 0 m/s). → Page 112 ff.
No. Device status message
(local display)
PROFIBUS measured value status Adv. diagnosis
message in
PROFIBUS
master
Cause/remedy
Quality code (HEX)
Quality status
Quality substatus
Limits
Symptoms Rectification
Comment:
You may have to change or correct settings in certain parameters in order to rectify faults. The parameters outlined below 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. Increase the following values:
– Analog Input function block → RISING TIME
– BASIC FUNCTIONS → SYSTEM PARAMETER → CONFIGURATION → FLOW DAMPING
3. Increase the value for display damping:
HOME → USER INTERFACE → CONTROL → BASIC CONFIG. → DISPLAY DAMPING
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. Enter a value for the low flow cutoff or increase this value:
BASIC FUNCTION → PROCESS PARAMETER → CONFIGURATION → ON-VALUE LF CUTOFF
The fault cannot be rectified or some
other fault not described above has
occurred.
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: order code and serial number → Page 11
Return devices to E+H
You can return a measuring device to Endress+Hauser for repair or calibration.
Always enclose the duly completed “Declaration of contamination” form with the flowmeter. You will find a preprinted
blank of this form at the back of this manual.
Replace transmitter electronics
Parts of the measuring electronics defective → Order spare parts → Page 137 ff.
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