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Issue Date: September 19, 2002
Pneumercator
Company, Inc.
TMS 2000, TMS 3000
(Patriot 7100 Magnetostrictive Probe)
AUTOMATIC TANK GAUGING METHOD
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Certification |
Leak rate of 0.2
gph with PD = 97.3% and PFA = 2.7% |
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Leak Threshold |
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. |
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Applicability |
Gasoline, diesel,
aviation fuel, fuel oil #4.
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Tank Capacity |
Maximum of 75,000
gallons. Tank must be between 50 and 95% full. |
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Waiting Time |
Minimum of 8
hours between delivery and testing.
Minimum of 5 minutes between dispensing and testing.
There must be no delivery during waiting time. |
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Test Period |
Minimum of 8
hours.
Test data are acquired and recorded by system’s computer.
Leak rate is calculated from data determined to be valid by statistical
analysis.
There must be no dispensing or delivery during test. |
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Temperature |
Average for
product is determined by probe which contains 5 thermistors.
At least one thermistor must be submerged in product during test.
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Water Sensor |
Must be used to
detect water ingress.
Minimum detectable water level in the tank is 0.488 inch.
Minimum detectable change in water level is 0.124 inch.
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Calibration |
Thermistors and
probe must be checked and, if necessary, calibrated in accordance with
manufacturer's instructions. |
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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.
TMS 2000 and TMS 3000 controller are identical except that the TMS 3000
console has more input contacts.
The TMS 2000 can monitor up to 2 probes and 8 leak sensors while the TMS
3000 can monitor up to 12 probes and 40 leak sensors. |
Pneumercator Company, Inc.
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1785 Expressway Drive North
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Evaluator:
Ken Wilcox Associates
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Hauppauge, NY 11788
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Tel: (816) 443-2494 |
| Tel: (800) 209-7858, (631) 293-8450 x112 |
Date of Evaluation:
01/30/01 |
E-mail: jlevy@pneumercator.com
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| UEL: www.pneumercator.com |
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