Issue Date: November 22, 1995
Revision Date: October 18, 2002

OPW Fuel Management Systems

(originally listed as Emco Electronics, Tuthill Transfer Systems)

EECO System, Leak Sensor II, Leak Sensor Jr. Thermistor and Proximity probes

Interstitial Detector (Liquid-Phase)

Detector

Output Type Qualitative
Sampling Frequency Continuous
Operating Principle Thermal conductivity, proximity switch

Test Results

  Unleaded Gasoline Synthetic Gasoline
EECO System
Detection time (sec) <5 <5
Fall time Manual reset Manual reset
Lower detection limit (cm)
Thermistor 1.22 1.12
Proximity 0.97 1.04
Leak Sensor II
Detection time (sec) <5 <5
Fall time Manual reset Manual reset
Lower detection limit (cm)
Thermistor 1.14 1.14
Proximity 1.12 1.17
Leak Sensor Jr.
Detection time (sec) <5 <5
Fall time Manual reset Manual reset
Lower detection limit (cm)
Thermistor 1.24 1.19
Proximity 1.12 1.17

Specificity Results

Activated: n-hexane, diesel, jet-A fuel, toluene, xylene(s), water.

Comments

Sensors are reusable.
Systems alarm if either water or product leaks into interstitial space.

  • OPW Fuel Management Systems
    6900 Santa Fe Dr.
    Hodgkins, IL 60525
    Tel: (708) 485-4200
    URL: www.opwglobal.com/opw-fms
  • Evaluator: Ken Wilcox Associates
    Tel: (816) 443-2494
    Dates of Evaluation: 11/09/92

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