Issue Date: August 23, 1999
Revision Date: March 10, 2000
Caldwell Systems Corp.
Tank Manager Liquid Sensor, Version TMLIQ
Interstitial Detector (Liquid-Phase)
Detector
| Output Type | Qualitative |
|---|---|
| Sampling Frequency | Continuous |
| Operating Principle | Ultrasonic |
Test Results
| Unleaded Gasoline | Diesel | Water | |
|---|---|---|---|
| Horizontal position | |||
| Response time (sec) | <1 | <1 | <1 |
| Recovery time (sec) | <1 | <1 | <1 |
| Lower detection limit (cm) | 1.28 | 1.30 | 2.43 |
| Precision - standard deviation (cm) | 0.05 | 0.06 | 0.25 | Vertical position |
| Response time (sec) | <1 | <1 | <1 |
| Recovery time (sec) | <1 | <1 | <1 |
| Lower detection limit (cm) | 8.56 | 7.59 | 9.27 |
| Precision - standard deviation (cm) | 0.22 | 0.11 | 0.44 |
Specificity Results
Evaluator claims sensor will detect fuels or other liquids.
Comments
Sensor is designed to alarm only when liquid is present from one end of sensor to the other. Therefore, sensor orientation (vertical or horizontal) will effect lower detection limit.
Sensors are reusable.
- Caldwell Systems Corp.
600 South Sunset Street, Unit D
Longmont, CO 80501
Tel: (303) 684-8436 - Evaluator: Ken Wilcox Associates
Tel: (816) 443-2494
Date of Evaluation: 11/09/98
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