Issue Date: November 22, 1995
Revision Date: May 18, 2004

EBW, Inc.

Auto-Stik II, Auto-Stik Jr.
(Magnetostrictive Probe)

Automatic Tank Gauging Method

As of April 1, 2009, Franklin Fueling systems no longer manufactures this method.

Certification Applies only to EBW, Inc. AutoStik II and AutoStik Jr., with SCALD 2.0 models sold on or after March 1, 2004.
Leak rate of 0.2 gph with PD = 99.9% and PFA = 0.1%.
Leak rate of 0.1 gph with PD = 98.3% and PFA = 1.7%.
Leak Threshold 0.1 gph for leak rate of 0.2 gph. 0.05 gph for leak rate of 0.1 gph.
A tank system should not be declared tight if the test result indicates a loss or gain that equals or exceeds this threshold.
Applicability Gasoline, diesel, aviation fuel, fuel oil #4.
Other liquids with known coefficients of expansion and density may be tested after consultation with the manufacturer.
Tank Capacity Maximum of 15,000 gallons.
Tank must be between 50 and 95% full.
Waiting Time Minimum of 6 hours between delivery and testing.
Minimum of 6 hours between dispensing and testing for leak of 0.2 gph.
Minimum of 2 hours between dispensing and testing for leak of 0.1 gph.
There must be no delivery during waiting time for leak of 0.2 gph.
There must be no dispensing or delivery during waiting time for leak of 0.1 gph.
Test Period Minimum of 4 hours.
Test data are acquired and recorded by system's computer.
Leak rate is calculated from average of subsets of all data collected.
There must be no dispensing or delivery during test.
Temperature Average for product is determined by a minimum of 5 thermistors.
Water Sensor Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.49 inch.
Minimum detectable water level change is 0.0052 inch.
Calibration Thermistors and probe must be checked and, if necessary, calibrated in accordance with manufacturer's instructions.
Comments

Not evaluated using manifolded tank systems. Therefore, this certification is only applicable when there is a probe used in each tank and the siphon is broken during testing.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to lower head pressure).
Consistent testing at low levels could allow a leak to remain undetected.
EPA leak detection regulations require testing of the portion of the tank system which routinely contains product.
Auto Stik Jr. is used with up to 4 magnetostrictive probes and can handle up to 8 input sensors.
Auto Stik II is used with up to 16 magnetostrictive probes and can handle up to 64 input sensors.

California regulations require at least one test per month after routine product delivery or when the tank is filled to within 10% of the highest operating level of previous month. If the 0.1 gph test is used as a tank tightness test there must be no water present in the backfill (groundwater must be below the bottom of the tank), the tank must be equipped with an overfill protection device, and the product level in the tank must be at the overfill protection device set point. Local agency pre-approval is required. To use the 0.1 gph test as a monthly option see title 23 CCR Section 2643 (b)(2).
  • EBW, Inc.
    3760 Marsh Road
    Madison, WI 53718
    Tel: (800) 225-9787
    E-mail: info@franklinfueling.com
  • Evaluator: Ken Wilcox Associates
    Tel: (816) 443-2494
    Date of Evaluation: 08/20/93

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