Accusonic 8510+ series Reference Manual page 50

6-6 Accusonic Model 8510+ Series Flowmeter
Set Flowmeter Clock (Operate Menu)
When Set Flowmeter Clock is selected, a dialog will appear for the user to enter in the desired date and time
to be sent to the flowmeter. It will default to the current time according to the PC clock. After making the
desired entries, click on Set Meter Clock to send it to the flowmeter. If you wish to see the date and time
according to the flowmeter, click on Get Flowmeter Clock.
Show Differences (Operate Menu)
Show Differences can be used to verify that the configuration sent to the flowmeter has been received and
stored properly. When show differences is chosen, the application connects with the flowmeter and
requests its parameters. When they are received, they are compared to the configuration currently loaded in
the PC. The parameters in the PC are shown on the left as "Local Configuration", while the parameters on
the right are the "Flowmeter Configuration". Only those parameters that are different are shown, so that if
the configurations are identical, both lists will be blank. It is common for the section volume parameters to
be different, as they are updated with every measurement. Clicking on the Re-Transmit Parameters button
sends the PC configuration to the flowmeter. After it has been sent, it is read back and any differences are
shown again.
Scope Mode (Operate Menu) – Only Available for 7510/7510+ Series
Scope mode allows the user to look at the received transducer waveforms in a window that looks much like
an oscilloscope. Scope mode will put the flowmeter into pipe mode, so that any selected paths will be
active without regard to the water level, and will freeze the 4-20 mA analog outputs at their current values.
The window displays the forward waveform in the top graph, and the reverse in the bottom graph. One path
at a time may be displayed. The path to be traced may be set by using the Path Number spin control. There
are a number of controls available. They are described below.
It is important to note that this mode of operation shows only the signal as processed by the DSP. A path
that has failed will not display any useful information.
Single Sweep
When this button is clicked, the "oscilloscope" acquires waveform data for a single measurement and
updates the scope display. Because of the volume of data, this process usually takes 3 to 4 seconds. Only
one trace is taken in single sweep mode.
Continuous
When this button is clicked, the "oscilloscope" continuously acquires waveform data from the flowmeter
and updates the display.
Pause
Clicking on the pause button stops the "oscilloscope from acquiring data after the latest waveform is taken.
It is most commonly used to stop the continuous mode.
Zoom Level
Zoom level allows the user to control the length of the time period to be displayed. A value of 1 displays
the smallest time period (usually 50 S), or the maximum "zoom". A value of 8 displays the longest period
(usually 400 S). After the zoom level is selected, a new waveform must be obtained by clicking either
single sweep or continuous.
Display Variables
If display variables is checked, velocity, gain, time difference, and travel time will be obtained in addition
to the waveform.