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File MR13544 Vol. 1 Sec. 2 Page 3 Issued: 2-1-91 <br />and Report <br />There are several versions of . probes: groundwater# <br />pressure,r r y • r vapor and tank.probes operate in an <br />identical I r_ connections <br />_s r. probes made <br />• <br />through • r• shielded <br />. rar: cable. probes <br />.. r intended r <br />be <br />connected tothcircuits e intrinsically safeextendingfrom <br />the system r rr .. properly r,.. + and used in the <br />system configuration specified by the manufacturer, the probes <br />are intrinsically safe for use in Class 11 Group D hazardous <br />location. <br />B. Line Pressure Probes - The Model 301-0333, covered by <br />this Report is a line pressure probe which is intended to detect <br />drops in line pressure in piping from submersible pumps to -fluid <br />dispensers. The probes are intended to be connected to the <br />intrinsically safe circuits extending from the system control <br />unit. When properly connected and used in the system <br />configuration specified by the manufacturer, the probes are <br />intrinsically safe for use in Class 1, Group D hazardous <br />location. <br />GaugesC. In Tank The Models t 111 11 and <br />401-0010-001 co ered by this Report are liquid level gauges which <br />determine water and.gasoline level in underground storage tanks <br />by means of <br />ultrasonic <br />measurements. <br />", r Y gauges x r r to <br />be connected r the intrinsically- circuits extending r rr <br />the system controlWhen properly cr - -r and used in the <br />system configuration specified by the manufacturer, the gauges <br />' intrinsically safe for• r i hazardous <br />location. <br />RATINGS: <br />In ut - EMS2000 - 120 V or 240 V, 50/60 Hz, 48 W (maximum <br />safe area voltage 240 V ac). <br />EMS3000 - 120 V or 240 V, 50/60 Hz, 44 W (maximum safe area <br />voltage 240 V ac). <br />Probe Output - (Not marked on device) - Intrinsically safe, <br />powereT7rom the console. <br />Relay Contacts - The relay contacts are intended for <br />connection to an externally powered audible signal appliance, <br />pumps, telemetry, etc. The relay contacts are rated 3 A, <br />120/240 V ac. <br />—e R.A. /M -M : d tc <br />