UST Programs - LG 113

Issue Date: November 22, 1995
Revision Date: August 23, 1999

Tidel Engineering, Inc.

MS-3000 301-0328-001, 301-0330-001
and
EMS-3500 Vapor Sensor Probe Part #301-0634

OUT-OF-TANK PRODUCT DETECTOR (VAPOR-PHASE)

Detector:

Output type:	qualitative
Sampling frequency:	continuous
Operating principle:	adsistor

Test Results:

	unleaded gasoline	synthetic gasoline	JP-4 jet fuel
EMS-3000 301-0328-001, 301-0330-001
Detection time (min:sec)	1:31	1:05	1:26
Fall time (min:sec)	5:39	4:23	9:38
Lower detection limit (ppm)	10-100	10-500	10-50
EMS-3500 Vapor Sensor Probe Part #301-0634
Detection time(min:sec)	2:46	1:41	1:50
Fall time(hr)*	>1	>1	>1
Lower detection limit (ppm)	100	500	100

* The vapor sensor probe was recalibrated when it did not recover, after 1 hour, from exposure to test vapors.

Specificity Results (in addition to above for EMS-3000 301-0328-001, 301-0330-001):
Activated: toluene, xylene(s)
Not Activated: n-hexane.

Specificity Results (in addition to above for EMS-3500 Vapor Sensor Probe Part No. 301-0634):
Activated: n-hexane, toluene, xylene(s).

Manufacturer's specifications:
EMS-3500 Vapor Sensor Probe Part No. 301-0634 is for use in normally dry monitoring wells to detect hydrocarbon vapors. It can be used in monitoring wells up to 20 feet deep. The probe will alarm if it comes in contact with water and must be removed immediately to prevent damage to probe.

Comments:
EMS-3000 lower detection limit has been statistically determined to be within the range specified above.

Tidel Engineering, Inc.	Evaluator: Radian Corp.
2310 McDaniel Dr .	Tel: (512) 454-4797
Carrollton, TX 75006	Dates of Evaluation: 07/08/91 , 03/18/93
Tel: (800) 678-7577

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Equipment should be installed and operated in accordance with all applicable laws and regulations.
For full details, please refer to our expanded "DISCLAIMER" page.