Troubleshooting/Faqs; Troubleshooting; Table 5- 1 Troubleshooting Tips - Siemens SITRANS F Quick Start Betriebsanleitung

Troubleshooting/FAQs

5.1

Troubleshooting

The following is list of troubleshooting tips and messages that you may encounter. They
include explanations and, in some cases, a recommended action. If a problem seems
unsolvable, contact your local Siemens office or regional Ultrasonic Flow Representative for
expert help at Services & Support (http://www.siemens.com/automation/service&support).
Table 5- 1 Troubleshooting Tips
Error or Message
Memory Full!
Memory Corrupted!
Chan Not Setup
Clr Active Memory?
Clr Saved Data?
<EOT>
No Sites - Press
<ENTER>
Security
RTC Error
- - -F- - - Fault Alarm
Re-space Index
FST020 IP65 NEMA 4X Quick Start
Operating Instructions, 03/2012, A5E03086489-05
Probable Cause
Response to an attempt to save site data,
when data memory is full.
Memory read error occurred while
accessing the active site data.
Response to an attempt to invoke an
operation that requires a channel to be
enabled.
Response to pressing and holding
<ENTER> key during power-up.
[Clr Saved Data?] only appears after
pressing the <Down Arrow> in response to
[Clr Active Memory?].
Response to a request to output Datalogger
data to the printer or the Graphics screen
when no Datalogger data exists or at the
end of a transmitted file..
Response while trying to recall/delete a site
setup when no sites are stored.
Response upon changing previously
entered data when security switch is in
[Disable] position or security code has been
entered.
Component level problem.
Loss of signal strength (ALC)

Change of Rx signal location (Beam

Blowing)
The measured liquid sonic velocity (Vs) is
more than +/- 25% of the average Vs range.
Solution
Delete an obsolete site or clear Datalogger
memory to make room for the new data.
Refer to F4 reset procedure in the Operation
Instructions manual.
Enable the channel [Channel Setup - Channel
Enable - Yes]. Note that a channel cannot be
enabled until an "Install" operation is completed.
Use this function to restore operation if a severe
event (e.g. a violent power surge) disrupts the
system operation.
Answering Yes to [Clr Saved Data?] will erase ALL
saved data. To invoke in RS-232 serial mode, type
@@@ and then press <ENTER> key.
Set up the Datalogger.
Create a site.
Change switch position to [Enable].

Enter previously set security code.

Meter requires service. Request RMA.

Recouple sensors with fresh couplant.

Install sensors in Direct mount mode.

Note: If problem persists call Tech support.

Assure proper pipe dimensions and/or Liquid

data entries are correct.
Properly enter correct Sensor Size into the

meter [Install Sensor] menu.
Confirm sensor spacing is correct by checking

[Install Sensor] menu spacing parameters.
5
33