Setting The Liquident™ Index - Siemens SITRANS F FUH1010 Series Operating Instructions Manual

Section 2
Crude Oils
Gasoline and Naphthenes
Jet Fuels and Kerosenes
Diesels, Heating Oils and Fuel Oils
To enter the K0 and K1 thermal expansion coefficients:
From the [Liquid Table] menu cell, press
Press to enable numeric entry.
Use PC numeric keys or Magnetic Wand to enter the desired K0 factor.
To enter the K0 factor press
This moves the highlight down to [K1].
Repeat the procedure for K1.
Setting the LiquIdent™ Index
A Liquid Class must have an associated LiquIdent™ Index Scale. The Interface Detector uses
this scale to compensate its outputs for variations in liquid type, specific gravity, and viscos-
ity. The LiquIdent™ Index Scale enables positive liquid identification.
A LiquIdent™ Index is the sonic velocity for the liquid at 60ºF (15.6ºC). When a LiquIdent™
Index is entered for a particular liquid within the Liquid Class, the liquid's specific gravity
and its viscosity must also be entered at the LiquIdent™ Index.
To create a LiquIdent™ Index Scale for the Liquid Class, a minimum of two LiquIdent™ Indi-
ces are required to be entered. If desired, up to sixteen LiquIdent™ Indices can be entered.
However, the computer only needs two to establish a scale of all the possible LiquIdent™
indices for the Liquid Class.
After the computer interpolates the LiquIdent™ Index Scale, its projections can be checked
by entering a meaningful LiquIdent™ Index and examining the reported specific gravity and
viscosity values. The scale can be fine-tuned by manually adjusting the factors at up to thirty-
six separate points.
To enter the LiquIdent™ Index:
From the [Liquid Table] menu cell, press
Press to enable numeric entry.
Use PC numeric keys or Magnetic Wand to enter the desired LiquIdent™ Index.
Siemens Hardware
To enter the LiquIdent™ Index press
Liquid Class
.
ENT
.
ENT
2-17
K0 K1
341.0957 0.0
192.4571 0.2438
330.3010 0.0
144.0427 0.1896
to scroll down to [K0].
to scroll down to [LiquIdent Index].
1010BXFM-3