Tokyo Keiki UFL-30, Руководство по установке и эксплуатации

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II-16
positions. Value units are determined by the units of flow (unit and exponent).
[Checking forward and reverse flow changes]
Relay clatter caused by frequent forward and reverse flow changes can be suppressed to exceed a
fixed period.
[Clearing of ROFF and DIS occurrences (log display)]
This function allows ‘0’ reset of ROFF (no received signal) or DIS (obstruction detected)
occurrences displayed under ‘Status 2’ of the measurement screen.
[Analog output check confirmation]
Analog output can be checked by inputting a percentage of max. flow value as set via the analog
output setting screen.
•
‘<A >’ is displayed at the upper part of the measurement screen when analog
output is being checked.
• For double range setting, the value set as the high range max. flow should be
considered 100%.
Note: When power is turned off the check function is cleared.
[Check of range fixation]
When the analog output pattern is set at double range, measurement can be carried out with the
high and low ranges fixed. Current range status can be confirmed under the ‘Status 1’ on the
measurement screen.
• When the range is fixed, an
‘ < R > ‘ is displayed at the upper part of the measurement
screen.
Note: The check function continues even when the power is turned off.
(Setting is retained in memory.)
[Check of path fixation]
When the measurement is set as multi-path, each path can be measured and display separately.
• When the path is fixed, an
‘ < M> ‘ is displayed at the upper part of the measurement
screen.
Note: The check function continues even when the power is turned off.
(Setting is retained in memory.)
[Acoustic velocities of fluids and Reynolds numbers]
Acoustic velocities of fluids and Reynolds’ numbers of the measured fluid can be checked with the
‘Basic Data’ screen.
[Self-diagnostics]
This function checks for equipment failure. Failure diagnostics are performed on the transmitting,
receiving, and time measurement circuits, etc., and the results are displayed. memory diagnostics
is also performed during the setting of data. Diagnostics of totalizer memory is also performed
when totalized values are being renewed.
Note: Self-diagnostics is continuously ongoing.