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Primary Displays & Menus
The Diagnostics Menu
The Diagnostics
5-26
DCT6088 User Guide
The Diagnostics menu contains various view-only menus which display
important diagnostic parameters that are currently used or calculated by the
Menu
flowmeter. These parameters are helpful when troubleshooting the
flowmeter.
Signal Strength/Margin display (90)
●
This screen displays the signal strength in percentage and the margin.
The signal strength value displayed is the average of the signal strengths
for the upstream and downstream transducers. Margin is an indicator
of signal quality and is generally greater than 50%. Signal strength is
generally greater than 3% under good measurement conditions.
Figure 5–62. Signal Strength/Margin display
Delta Time/Fluid Sound Speed display (91)
●
Displays the value for DeltaT and the fluid sound speed as measured by
the flowmeter. DeltaT is the difference between the upstream and
downstream travel times, expressed in nanoseconds (ns).
Figure 5–63. Delta Time/Fluid Sound Speed display
Reynolds Number/Profile Factor display (92)
●
Displays the Reynolds number and flow profile factor currently being
used by the flowmeter. The flow profile factor is calculated by the
flowmeter and used to determine the effect of the flow profile on mean
measured fluid velocity.
Figure 5–64. Reynolds Number/Profile Factor display
Thermo Fisher Scientific
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Troubleshooting
