Issue Date: April 18, 1997
Revision Date: December 8, 2016


TLS-300i, 300J, 350, 350R, 350Plus, 450, Red Jacket ProMax and ProPlus
Monitoring Systems with CSLD
(Models 8463, 8473, 8493 Magnetostrictive Probes)

(Continuous Automatic Tank Gauging)

Certification Leak rate of 0.2 gph with PD = 100% and PFA = 0%.
Leak Threshold 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.

Gasoline, diesel, aviation fuel, biodiesel blends B6-B20 meeting ASTM D7467, biodiesel B100 meeting ASTM D6751, waste oil.

Tank Capacity 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.
Throughput Monthly maximum of 221,890 gallons.
Waiting Time Minimum of 3 hours stabilization time is allowed between delivery and data collection.
Test Period 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.
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 0.54 inch for model 8463 and 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.

Calibration 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.
Comments 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.



Evaluator:  Midwest Research Institute

125 Powder Forest Dr.

Tel:  (816) 753-7600

Simsbury, CT  06070-2003

Dates of Evaluations:  06/10/96, 04/02/02

Tel:  (860) 651-2700

Evaluator: Ken Wilcox Associates


Tel:  (816) 443-2494


Date of Evaluation: 10/26/2007, 08/31/10 (water sensor)


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