Issue Date: July 27, 2004
Revision Date: June 8, 2005
AutoStik Jr., with SCALD 2.0
(INCON TSP-LL2 Magnetostrictive Probe)
CONTINUOUS IN-TANK LEAK DETECTION METHOD
(Continuous Automatic Tank Gauging)
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% and PFA
||0.10 gph for single and manifolded tank
A tank system should not be declared tight and a message printed for the
operator, if the test results indicate a loss or gain that exceeds this
||Gasoline, diesel, aviation fuel, fuel oil
||Maximum of 49,336 gallons for single tanks
and for all tanks manifolded together.
Tank must be between 14 and 93.5% full.
Contact manufacturer for tank system applications if total tank capacity
exceeds 30,000 gallons.
||Monthly maximum of 257,818 gallons.
||None between delivery and data collection
when difference between product in tank and product delivered is 6.0 degrees
F or less.
||Data collection time ranges from 5 to 28
days. Data sampling frequency is > 1 per second.
System collects data at naturally occurring product levels without
interfering with normal tank operation, and discards data from unstable
periods when system performs test.
||Average for product is determined by a
minimum of 5 thermistors.
||Must be used to detect water ingress.
Minimum detectable water level in the tank is 0.208 inch.
Minimum detectable change in water level is 0.011 inch.
||Thermistors and probe must be checked and,
if necessary, calibrated in accordance with manufacturer's instructions.
||System reports a result of “pass” or
Evaluated using both single and manifolded tank systems
with probes in each
Tests only the portion of the tank
As product level is lowered, the 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.
AutoStik Jr. can
support up to 4 tanks.
AutoStik II can support up to 8 tanks.
The database for evaluation of the system includes sites with vapor recovery
and blending dispensers.
Evaluator: Ken Wilcox
3760 Marsh Road
Tel: (816) 443-2494
Madison, WI 53718
Date of Evaluation:
Tel: (800) 225-9787