Issue Date: November 22, 1995
Revision Date: October 18, 2002
OPW Fuel Management Systems
(originally listed as Petro Vend, Inc.)
Petrosentry IV, Petrosentry VIII, SiteSentinel with Liquid Sensor, Universal Sump Sensor, Universal Reservoir Sensor
Interstitial Detector (Liquid-Phase)
Detector
| Output Type | Qualitative |
|---|---|
| Sampling Frequency | Continuous |
| Operating Principle | Thermal conductivity (Liquid Sensor), float switch (Universal Sump Sensor, Universal Reservoir Sensor) |
Test Results
| Unleaded Gasoline | |
|---|---|
| Liquid Sensor | |
| Response time (min) | 0.51 |
| Recovery time (min) | <1 |
| Product activation height (cm) | 0.35 |
| Lower detection limit (cm) | 0.76 |
| Universal Sump Sensor | |
| Response time (min) | 8.32 |
| Recovery time (min) | <1 |
| Product activation height (cm) | 3.37 |
| Lower detection limit (cm) | 3.97 |
| 50% by weight Ethylene Gycol in Water |
30% by weight Calcium Chloride in Water |
|||
|---|---|---|---|---|
| High* | Low* | High | Low | |
| Universal Reservoir Sensor | ||||
| Response time (min) | 19.62 | 18.86 | 17.77 | 15.91 |
| Recovery time (min) | <1 | <1 | <1 | <1 |
| Product activation height (cm) | 20.9 | 5.90 | 20.5 | 5.95 |
*The "high" and "low" refer to high and low level alarm points of hydrostatic sensors.
Specificity Results (in addition to above for Liquid Sensor and Universal Sump Sensor)
Activated: diesel, synthetic gasoline, heating oil #2, water.
Comments
Universal Reservoir Sensor is intended to monitor level of either ethylene glycol or calcium chloride solutions in the interstitial or annular space of a double-walled tank.
Universal Reservoir Sensor activates an alarm if any significant gain or loss of solution occurs.
Sensors are reusable.
- 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: 10/15/92
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