Flexim FLUXUS WD100, User Manual

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11 Advanced Measuring Functions FLUXUS WD100, WD200
UMFLUXUS_F5WDV1-1EN, 2016-04-08 55
11.6 Uncorrected Flow Velocity
For special applications, the uncorrected flow velocity might be of interest.
The profile correction for the flow velocity is activated in Special Funct.
\SYSTEM settings\Measuring\Flow Veloc-
ity
.
11.7 Change of the Limit for the Inner Pipe Diameter
It is possible to change the lower limit of the inner pipe diameter for a given transducer type.
• Enter HotCode
071001 .
11.8 Program Code
An ongoing measurement can be protected from an inadvertent intervention by means of a program code.
If a program code has been defined, it will be requested when there is an intervention in the measurement (a command or
key BRK).
11.8.1 Defining a Program Code
A program code will remain valid as long as:
• no other valid program code is entered or
• the program code is not deactivated.
11.8.2 Intervention in the Measurement
If a program code is active, the message
PROGRAM CODE ACTIVE
will be displayed for a few seconds when a key is
pressed.
The input of a program code is interrupted by pressing key C.
Select
normal
to display and transmit the flow velocity with profile correction.
Select
uncorr.
to display the flow velocity without profile correction. Press ENTER.
If
uncorr.
is selected, it has to be confirmed each time the program branch
Measuring
is selected if the profile correction is to be used.
If
no
is selected, the profile correction will be switched off.
All physical quantities will be calculated with the uncorrected flow velocity.
During the measurement, the designation of the physical quantity will be displayed in capi-
tal letters to indicate that the value is uncorrected.
Press ENTER.
If
yes
is selected, the uncorrected flow velocity will only be used if the flow velocity is se-
lected as the physical quantity in the program branch
Output Options
.
All other physical quantities (volumetric flow rate, mass flow, rate etc.) will be determined
with the corrected flow velocity.
During the measurement, the designation of the physical quantity will be displayed in capi-
tal letters to indicate that the value is uncorrected.
Press ENTER.
In both cases, the corrected flow velocity can also be displayed.
Press key to scroll until the flow velocity is displayed. The uncorrected flow velocity is
marked with
U
.
Enter the lower limit of the inner pipe diameter of the displayed transducer type. Press EN-
TER to select the next transducer type.
Note! If a transducer is used below its recommended inner pipe diameter, a measurement might be impos-
sible.
Note! Do not forget the program code!
Flow Velocity
>NORMAL< uncorr.
PROFILE CORR.
>NO<
yes
FLOW VELOCITY
2.60 m/s
PROFILE CORR.
NO
>YES<
Flow Velocity
*U
54.5 m/s
DNmin Q-Sensor
15 mm