TLS-450 Setup and Operation Screens Manual
65
Thermal Coefficient
To ensure proper leak test performance, you must enter the Coefficient of Thermal Expansion for the fuel
in the tank. The system requires these values to establish proper temperature compensation factors
during a leak test and for use in calculating temperature compensated volume. If you know your product's
thermal coefficient enter that value. Otherwise, refer to the list below of typical thermal coefficients for
various fuels and liquids:
Product
Thermal Coefficient
(U.S. Units)
Thermal Coefficient
(Metric Units)
AdBlue or Urea
0.00045
0.00081
Alcohol
0.00063
0.00114
Aviation Gas
0.00075
0.00135
Diesel (fuel oil #2) [Derv]
0.00045
0.00081
< Derv> Biodiesel (B20)
0.00045
0.00081
< Derv> Biodiesel (B100)
0.00045
0.00081
Ethylene Glycol
0.00037
0.00067
Fuel Oil #4
0.00047
0.00085
Gasohol
0.00069
0.00125
Gear Oil, 90W
0.00047
0.00085
Hydraulic Oil
0.00047
0.00085
Jet Fuel
0.00047
0.00085
Kerosene (fuel oil #1) [Paraffin]
0.00050
0.00090
Liquefied Petroleum Gas (LPG) - Propane*
0.00160
0.00288
Liquefied Petroleum Gas (LPG) - Butane*
0.00109
0.00196
Leaded Gasoline
0.00070
0.00126
Motor Oil
0.00047
0.00085
Premium [4 Star]
0.00070
0.00126
Regular Unleaded Gasoline
0.00070
0.00126
Super Unleaded Gasoline
0.00070
0.00126
Low benzene unleaded petrol
0.00070
0.00126
Transmission Fluid
0.00047
0.00085
Turbine Oil
0.00047
0.00085
Water
0.00012
0.00022
Washer Fluid
0.00047
0.00085
Used Oil
0.00044
0.00079
*Coefficient dependent on temperature, 15°C is nominal.
Allowable entry: 0.0 to 0.0016 gal/gal/ °F (0.0 to 0.00288 L/L/ °C)
Default: 0.0 (A value of 0.0 in this field means that TC volume is uncompensated volume, which is not
compensated for temperature.)
Meter Data Present
When this feature is enabled, all meter data collected from the dispensers will be reported to the system.
If dispenser data for this tank is being reported to the DIM then this parameter must be set to Enabled.
Allowable entry: Enabled, Disabled
Default: Enabled
