Honeywell CIU 888 Configuration Manual page 73

Part No.: 4417584_Rev12
Getting Started
Properties
Tank shell exp. coeff
Insulation factor
12.Click the Minimum & Maximum quantities tab, the Properties
detail appears.
You can view or edit these properties:
Properties
High level
Low level
Configuration Manual
CIU 888
Description
Tank shell expansion coefficient (TankTC).
Tanks undergo expansion and contraction, due to varia-
tions in AmbientTemp and ProdTemp.
This results in incorrect level readings, which makes it
necessary to correct the calculated volumes.
TankTC is the expansion coefficient of the Tank Shell
material:
Tank Shell material TankTC per OC TankTC per OF
Mild CarBon steel
0.0000112 0.00000620
304 Stainless steel
0.0000173 0.00000960
316 stainless steel
0.0000159 0.00000883
17-4PH stainless steel
0.0000108 0.00000600
TankTC must be entered in format 10e-5 (shift decimal
point 5 positions to the right), e.g. 0.0000112 must be
entered as 1.12.
Tank Shell Insulation Factor.
The Insulation Factor (0 < Insulation <= 1.0) indicates
how well the tank shell is insulated from the environ-
mental temperature (AmbientTemp) outside the tank.
For a fully insulated tank (TankShellTemp = ProdTemp),
Insulation = 1.0.
Default value : 0.875
Description
Enter level that corresponds with high TOV (for graphi-
cal purposes in Entis Pro).
Enter level that corresponds with low TOV (for graphical
purposes in Entis Pro).
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