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Issue Date: April 18, 1997
Revision Date: March 6, 2015
Veeder-Root
TLS-300i,
300J, 350, 350R, 350Plus, 450, Red Jacket ProMax Monitoring Systems
with CSLD
(Models 8463, 8473, 8493 Magnetostrictive Probes)
CONTINUOUS
IN-TANK LEAK DETECTION METHOD (CONTINUOUS AUTOMATIC TANK GAUGING)
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Certification
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Leak
rate of 0.2 gph with PD = 100% and PFA = 0%.
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Leak
Threshold
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0.16
gph for single tanks at 99% operating mode.
0.15 gph for manifolded tank systems at 99% operating
mode.
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 threshold.
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Applicability
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Gasoline, diesel, aviation fuel, biodiesel blends B-6-B20 meeting ASTM D7467, biodiesel B100 meeting ASTM D6751.
Other liquids with known coefficients of expansion and
density may be tested after consultation with the manufacturer.
Evaluations determined that the Models 8463, 8473, 8493 Magnetostrictive Probes responds to 100% Lubrizol Ultrazol 9888, 100% Afton OTR 8332G, and 100% Afton OTR 8843G. Alarm and response can be expected to be very similar to the response values listed above. |
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Tank
Capacity
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Maximum
of 38,170 gallons for single tanks and for all tanks manifolded
together.
Contact manufacturer for tank system applications if total
tank capacity exceeds 30,000 gallons.
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Throughput
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Monthly
maximum of 221,890 gallons.
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Waiting
Time
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Minimum
of 3 hours stabilization time is allowed between delivery
and data collection.
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Test
Period
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Data
collection time ranges from 5 to 28 days.
Data sampling frequency is every 1 to 4 seconds.
System collects data at naturally occurring product levels
without interfering with normal tank operation, and discards
data from unstable periods when system performs test.
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Temperature
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Average
for product is determined by a minimum of 5 thermistors.
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Water
Sensor
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Must
be used to detect water ingress.
Minimum detectable water level in the tank is 0.54 inch for model 8463and 8493 probe.
Minimum detectable water level in the tank is 0.75 inch for model 8473 probe.
Minimum detectable water level in the tank is 0.38 inch when using TLS 350 with model 8463 probe with 88610x-0x0 water float and software version 30B or higher, or TLS 450 with software version 3A or higher.
Minimum detectable change in water level is 0.027 inch.
Minimum detectable change in water level in tank is 0.01 inch when using TLS 350 with model 8463 probe with 88610x-0x0 water float and software version 30B or higher, or TLS 450 with software version 3A or higher.
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Calibration
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Thermistors
and probe must be checked annually and, if necessary,
calibrated in accordance with manufacturer's instructions.
System set-up menu must be checked to verify that the
99% operating mode option has been selected.
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Comments
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During installation, the
set-up menu provides a choice between a 99% or a 95%
operating mode. This evaluation covers only the 99%
operating mode. At this time, there is no evaluation
covering the 95% mode. System reports a result of "pass"
or "fail."Evaluated using both single and
manifolded tank systems with probes in each tank. System
distinguishes large leak rates (> 1gph) from dispensing
activities and reports those as "fail" or
as “no idle.”For valid monthly testing, a conclusive
test report must be produced for each tank every month.
System warns operator if there are no “ passing” tests
completed during the month. For very active tanks, a
tank shut down may become necessary in order for the
system to collect enough quiet-time data for a test.
Constant and variable leaks were mathematically induced
into tight tank test records which were collected by
systems installed at various active tank sites. The
database for evaluation of the system included sites
with vapor recovery and blending dispensers. Tanks used
in this evaluation contained gasoline and diesel.
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Veeder-Root
125
Powder Forest Dr.
Simsbury,
CT 06070-2003
Tel:
(860) 651-2700
E-mail:
dhalla@veeder.com
URL:
www.veeder.com/dynamic/index.cfm
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Evaluator:
Midwest Research Institute
Tel:
(816) 753-7600
Date
of Evaluation: 06/10/96
Evaluator: Ken Wilcox Associates
Tel: (816) 443-2494
Dates of Evaluations: 10/26/2007, 4/4/2015
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