Displaying The Data In Maintenance Mode - Fuji Electric Time Delta-C FSV-2 Instruction Manual

6.5.2. Displaying the data in maintenance mode

Follow the procedure shown below to check possible display errors.
Key operation
Press the
▼
Press the
ENT
▼
Press the
▼
Press the
ENT
▼
 Displays the transit time and the window value calculated from
the piping setting.
Press the
▼
 Displays the measurement value of transit time, T1 (forward
time), and T2 (reverse time) from the piping setting.
Press the
▼
 Displays the measurement value of average transit time, T0,
and transit time difference, DT.
Press the
▼
 Displays the calculated value of pass time of the substances
other than fluid, Ta, and angle of incidence of the fluid,  .
Press the
▼
 Displays the calculation value of sound velocity in fluid, Cf, and
Reynolds number, Re.
Press the
▼
 Displays correction coefficient of flow velocity distribution, K,
and flow velocity, V.
Press the
▼
 Displays the intensity of received signals.
The larger the value, the larger the intensity of received
signals.
Normal measurement values fall in 45% or more.
If the display appears as 0%, no signals are being received.
Ultrasonic waves may not be transmitted because of
insufficient water volume or rust of piping.
Press the
▼
 Displays the peak value of received signal waveform.
Normal values stably fall within the range from 5528 to 6758.
If the value fluctuates significantly, objects that constitute
barriers against ultrasonic wave transmission such as air
bubbles or foreign matter may be contained in the fluid.
Stop the flow and check if normal value is resumed.
If so, there is a possibility that air bubbles are contained.
Press the
▼
 Displays the detection level value of received signal waveform.
Press the
ESC
mode.
Description
key for 4 times to display "MAINTENANCE MODE".
key once to display "RAS INFORMATION".
ENT
key for 13 times to display "DATA DISPLAY".
key.
ENT
key once.
key once.
key once.
key once.
key once.
key once.
key once.
key once.
key or the key to display the measurement
ESC
-90-
Display
MAINTENANCE MODE
RAS INFORMATION
0000000000000000
DATA DISPLAY
T0 C: 89 usec
WinC: 80 usec
T1: 0.000 usec
T2: 0.000 usec
T0: 0.000 usec
DT:
0.00 nsec
Ta: 0.0000 usec
 f: 0.000°
Cf: 0.0 m/s
Re: 0
K: 1.3333
V: 0.000 m/s
AGC U: 0.00 %
AGC D: 0.00 %
P/H U: 6143
P/H D: 6143
TRG U: 25.00%
TRG D: 25.00%