Display Of "F" At No Flow Conditions; Selection Of Liquid Composition; Other Menu Entries - Siemens SITRANS F Operating Instructions Manual

Section 7
7.14

DISPLAY OF "F" AT NO FLOW CONDITIONS

It is normal for the digital display to show an "F" for the no flow condition since the lack of Spectra
information during no flow is the same as a fault condition.
NOTE: Selecting the Operation Adjust menu cell [Zero/Fault Set] allows the option of indicating
Zero Flow rather than a Fault (see paragraph 2.5.4 for details).
7.15

SELECTION OF LIQUID COMPOSITION

The width of the Spectra wave shape is an indication of the depth of penetration of sonic energy into the
flow stream. The % Deviation is a measure of the width of the Spectra and is representative of the
penetration of the sonic beam into the liquid. Select [Slurry] in the Application Data menu for better flow
rate indication accuracy when the % Deviation is less than 25 with typical flow conditions. For %
Deviations above 35, select [Liquid]. For applications that continuously have % Deviations between 25
and 35, proper selection of either [Liquid] or [Slurry] can be confirmed by comparison to a known flow
reference.
7.16

OTHER MENU ENTRIES

All other menu entries will operate and be used in the same manner as the transit time flow measure-
ment mode.
Siemens 2 Channel [1]
Shows range of flow rate detected
Low Limit GAL/MIN
High Limit GAL/MIN
Noise Level Set
Doppler Freq <Hz>
% Deviation >
Signal Pk-Pk mV
FFTs/Sec
FFT Peak
Carrier fx <drive>
Application Info
Siemens 2 Channel [1] Channel 1
Choose Liquid or Slurry flow calibration
Liquid Composition
Density SG
Application Data
7-9
Channel 1
0.00
16.75
2
8571
100.00
27
28
0
27
Liquid
1.00
1010PFM-3G