Issue Date: November 22, 1995
Revision Date: March 10, 2000
PermAlert
TankWatch Models PHM10, PHMS with Combination Hydrocarbon/Water Probe, Hydrocarbon Probe
Interstitial Detector (Liquid-Phase)
Detector
| Output Type | Qualitative |
|---|---|
| Sampling Frequency | Continuous |
| Operating Principle | Electrical conductivity |
Test Results
| Unleaded Gasoline | Water | |
|---|---|---|
| Combination Hydrocarbon/Water Probe | ||
| Response time (min) | 0.30 | <1 |
| Recovery time (min) | 1.97 | 1.68 |
| Product activation height (cm) | 0.18 | 0.80 |
| Lower detection limit (cm) | 0.56 | 1.93 |
| Hydrocarbon Probe | ||
| Response time (min) | 0.25 | |
| Recovery time (min) | 2.33 | |
| Product activation height (cm) | 0.17 | |
| Lower detection limit (cm) | 0.38 | |
Specificity Results (in addition to above)
Activated: synthetic gasoline, diesel, heating oil #2
Comments
Sensors are reusable.
Hydrocarbon probe is not activated by water.
Hydrocarbon/water probe does not discriminate between gasoline and water.
- PermAlert
6410 W. Howard St.
Niles, IL 60714
Tel: (847) 966-2235
Email: marketing@permalert.com
URL: www.permalert.com - Evaluator: Carnegie Mellon Research Institute
Tel: (412) 268-3495
Date of Evaluation: 06/16/92
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