Diagnostics menu, F - ufm, 8diagnostics menu – Dwyer UFM User Manual
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F - UFM
Issue 1.4
Page 23
8
Diagnostics Menu
The diagnostics menu provides some additional information about the flowmeter and its setup. The
menu can be accessed by pressing the
key from the main flow-reading screen. The menu shown
below describes the various diagnostics items.
DIAGNOSTICS MENU
V
The Estimated TA (Time of Arrival) and Actual TA show the
theoretical and measured transit times. These values should
be within several per cent of each other.
The gain on line one is an indicator of the signal strength. A
good signal should have a gain of between 600 to 970. The
number in parentheses is the switch setting and should be x1.
The second line shows the current time differential between
the upstream and downstream signals.
Line 1: Software version
Line 2: Serial number.
If the Frequency pulse option is enabled this screen displays
the current pulse output frequency. This is proportional to the
flow rate.
Press
To exit the Diagnostics menu
Please note the key board is less responsive in
the Diagnostics Menu and longer key presses
are required.
Sig: 87% *
1245 USgal/min
Est.TA 85.64
Act .TA 86.77
Gain 845 (x1)
DT 125 ns
Rev: 05.00.001
S/N: 12547 11/13
Pulse Frequency
124
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v
Pipe Material
Plastic
>
The Selected pipe material
Figure 17 Diagnostics Menu
>
Separation
D-4
The separation setting based on the pipe material and inside
diameter.
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