Siemens SITRANS FUS1020, Руководство пользователя, Страница: 134 / 251

6-12
1020NFM-1D Section 6
6.3.1 HOW TO SELECT A LIQUID CLASS
The liquids listed in the Liquid Class option list are representative samples of the class of liquids to
which they belong. Selecting a named liquid fills in the [Estimated Vs m/s], [Viscosity cS], and [Density
SG] parameters automatically. However, you have the option of editing these parameters individually to
fine tune the liquid settings. If you do not find a liquid that matches your application, then you can select
[Other]. This selection will not provide a liquid name or automatic parameter entry.
To select a Liquid Class:
To access the option list press the <Right Arrow>.
Scroll through the list to find the closest match to the application’s liquid.
To register selection press <ENTER>.
How to Edit the Estimated Vs (liquid sonic velocity)
During transducer installation, the flow computer bases its initial transducer spacing recommendation
on the value stored in this menu cell. Estimated Vs m/s allows you to review and modify (if necessary)
the Vs value for the liquid class you selected.
Liquid Class
Siemens 2 Channel [1] FLOW1
Access Liquid Option List
Estimated Vs m/s 1482
Viscosity cS 1.00
Density SG 1.000
Select Liquid Water 20C/68F
Use this menu cell to edit the
Estimated Vs ONLY if you are
sure of a more accurate value.
This will reduce the chances of
a re-spacing request for clamp-
on flow transducers during the
install procedure.
Use this menu cell to edit
the liquid viscosity ONLY
if you are certain that the
data you enter is
accurate. An erroneous
entry could affect meter
calibration.
Use this menu cell
to select a liquid.
Selecting a liquid
automatically enters
data into Liquid
Class menu cells.
Use this menu cell to
edit the specific
gravity of the liquid.
*Default
APPLICATION DATA MENU STRUCTURE (continued)
Application Data Liquid Class Estimated Vs m/s xxxx (numeric entry)
Viscosity, cS x.xx (numeric entry)
Density SG x.xxx (numeric entry)
Pipe Configuration Fully Developed *
(Change to Upstream 1Elbow
Piping) Dbl Elbow +
Dbl Elbow -
Valve
Expander
Reducer
Norm Entry
Header Inlet
Intrusions
Anomaly Diams xxxx (numeric entry)
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