Process Errors Without Messages - Endress+Hauser PROline Prosonic Flow 93 FOUNDATION Fieldbus Operating Instructions Manual

PROline Prosonic Flow 93 FOUNDATION Fieldbus
Endress+Hauser
9.3

Process errors without messages

Symptoms
Remark:
You may have to change or correct settings in certain parameters in order to rectify the fault. The
parameters listed below, e.g. "Install. Direction Sensor", are explained in detail in the accompanying
"Description of Device Functions" manual.
Measured value reading
fluctuates even though flow
is steady.
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 E+H service
organisation.
Remedial measures
1. Check the fluid for presence of gas bubbles.
2. Increase the following value:
– FOUNDATION Fieldbus:
Analog Input function block
– Local display:
→
HOME BASIC FUNCTIONS
→ →
CONFIGURATION
3. Increase the value for the display damping:
– FOUNDATION Fielbus:
Transducer Block "TRANSDUCER_DISP" (base index 1500)
→
"User Interface - Damping" parameter
– Local display:
→
HOME USER INTERFACE
→
CONFIGURATION DISPLAY DAMPING
1. Check the fluid for presence of gas bubbles.
2. Enter a value for the low flow cutoff or increase this value:
– FOUNDATION Fielbus:
Transducer Block "TRANSDUCER_CH1" (base index 1200)
or "TRANSDUCER_CH2" (base index 1300)
→
"Low Flow Cut off - On-Value" parameter
– Local display:
→
BASIC FUNCTIONS
→ →
CONFIGURATION
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 "Dangerous Goods" sheet with the
flowmeter. You will find a copy of this form at the back of these Operating
Instructions.
Replace transmitter electronics
Components in the meter electronics defective
→
part Page 100
9 Trouble-shooting
→
PV_FTIME parameter
→
SYSTEM PARAMETER
FLOW DAMPING
→ →
OPERATION BASIC
PROCESS PARAMETER
ON-VALUE LOW FLOW CUTOFF
→
Order spare
99