2-71
1010PVNFM-3A
Section 2
2.11.5 THE SITE SETUP DATA MENU
This menu provides data pertaining to transducer characteristics and operation. Some menu
items are for technical support interpretation only.
*Viscosity expresses the readiness with which a fluild flows when it is acted upon by an exter-
nal force. Absolute viscosity of a fluid is a measure of its resistence to internal deformation
or shear.
fx (drive) Current Transmit drive code selected during Initial Makeup. The drive
code controls the sonic transmit signal.
N (burst length) Transmit burst duration selected during Initial Makeup. To change N
count press <Right Arrow>. At equal sign enter numeric value (1 to 9
only).
Ltn (in/mm) Spacing distance between the transducers. It will be in inches or milli-
meters, depending on default units.
Vfmax The flow velocity (in selected units) corresponding to one whole cycle
offset between upstream and downstream receive signals.
Vs max m/s Maximum correctly calibrated Vs for current transducer spacing.
Vs min m/s Minimum correctly calibrated Vs for current transducer spacing.
Empty % Value of Empty Alarm Setting. The meter will declare an empty status
if signal strength drops below this value.
Samples/Cycle Digital sampling rate.
HF Flow registration correction parameter.
SITE SETUP MENU ITEMS
Introduction to [HF] Menu Item
All 1010 flowmeters with version 3.01.02 and later operating systems include a new Diagnostics
Menu item that permits the entry of a flow registration correction parameter labeled [HF].
This “HF” parameter is the input for a proprietary algorithm which automatically compensates
for signal beam blowing in pipes utilizing either 1011 clamp-on or insert transducers, thereby
extending the upper flow limit of all 1010 flowmeters. This algorithm provides the most benefit
for clamp-on meters where high flow velocities and low sound velocities create the most
challenging conditions for digital signal processing routines.
fx (drive) 30
N (burst length) 42
Ltn in -1.154
Vfmax GAL/MIN 1577.42
Vs max m/s 2165.41
Vs min m/s 936.62
Empty % 30
Samples/Cycle 24
HF -0.120
Controlotron Dual Path SITE 1
Current transit drive code
Site Setup Data
viscosity (centistokes) = viscosity (centipoise)
density(grams per cubic cm)
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