Siemens SITRANS FUP1010 Operating Instructions Manual page 122

Troubleshooting
10.3 Test Facilities Graph Screen
quality. The primary function of this screen is to display the digitized receive signal waveform
with the similar appearance and function of a digital oscilloscope. This screen also allows the
user to override some of the flowmeter default settings by permitting adjustment to the
measured transit time, the digital averaging and the zero crossover used in the measurement
of the up/down transit time difference. The figure shown below is a representation of the
diagnostic graph.
Note
The Test Facilities Graph Screen requires significant CPU overhead. The flowmeter should
not be left in this mode during normal operation where the Datalogger is the primary output
or during calibration work.
Figure 10-1
Entering the Diagnostic Graph Screen
Before you can view the Diagnostic Graph Screen the flow channel must first be properly
installed and operating in a non-empty condition. If a previously installed channel is in a "Fault"
condition, but not reporting "Empty", you can still access the Graph Screen to aid in
troubleshooting the cause of the failure to measure flow.
To view the Graph Screen first enter the [Test Facilities] menu, which is a submenu of the main
[Diagnostic Data] menu.
1. Pressing the <Up/Down Arrows>, scroll to the [Graph] menu item.
2. Press the <Right Arrow> to enter the [Graph] menu and scroll to highlight the [Yes] item in
3. Now press the <ENTER> key to access the Graph Screen.
4. To exit the Graph Screen and return to the main menu, press the <MENU> key once.
120
Test Facilities Graph Screen
the option list.
FUP1010 IP67 Portable Flowmeter
Operating Instructions, 02/2010, A5E02951522A Revision 01