UST Programs - LG 113

Issue Date: January 11, 2001

Simone Engineering, Inc.

Magnetrol Model 918 Ultrasonic Point Level Switch with ABB Automation Freelance 2000 Control System

INTERSTITIAL DETECTOR (LIQUID-PHASE)

Detector:

Output type:	qualitative, non-discriminating
Sampling frequency:	continuous
Operating principle:	electrical conductivity, ultrasonic

Test Results:

	trichloroethylene	acetone	water
Lower detection limit (in)	0.143	0.166	0.164
Detection time (sec)	<1	<1	<1
Fall time (sec)	<1	<1	<1

Specificity Results:
Evaluator claims sensors will respond to any liquid after threshold is exceeded.

Comments:
The Magnetrol Model 918 has not been evaluated for application with petroleum hydrocarbons. The sensor has been evaluated specifically for application in water, acetone, and trichloroethylene.
The ABB Automation Freelance 2000 was used to detect the 8 to 16 milliamp change that occurred in the Magnetrol sensor when it became submerged in product. Audible and visual alarms were activated when the sensor indicated that alarm conditions were present.

Simone Engineering, Inc.	Evaluator: Ken Wilcox Associates
2635 45th Street	Tel: (816) 443-2494
Highland, IN 46322-2985	Date of Evaluation: 01/27/00
Tel: (219) 922-6750

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