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of the high voltage or current to the hazardous area. This is an Underwriters Laboratoryand 6.0 TYPICAL APPLICATION— area. Factory Mutual requirement. SECONDARY CONTAINMENT LEAK MONITOR The Model X76S provides the necessary 4.0 TROUBLESHOOTING/REPAIR monitoring of secondary containment applications in gasoline and oil storage facilities to detect leaks in 4.1 X76S Leak Detector Monitor System time to prevent leakage of hazardous liquid into the underground water table. CAUTION: The system's internal terminations c VAC. Touching these The secondary containment tank leak monitor consists terminals can c are powered of liquid-level sensors and alarm modules, located in cause electrical shock. the Ronan X76S system. The liquid-level sensor The Series X76S Leak Detector Monitor System monitors the area between the inner and outer tank is designed for trouble-free operation and should for possible spillage. Should a leak occur, the product not require troubleshooting in the field. Since the will be contained in the outer shell and the X76S system consists of individual plug-in modules, the alarm module will indicate an alarm via the system's initial repair should be limited to the exchange of buzzer and flashing LED, specifying which tank has a modules and verification of proper wiring of all leak. The X76S will also indicate an alarm should the incoming field connections. outer shell leak and allow ground water to seep into 4.2 Alarm Module the tank. Troubleshooting of the alarm module should be carried out systematically, since this module operates in conjunction with the X53-2000 7.0 SPECIFICATIONS Barrier Module and the intrinsically safe 24 VDC power supply. 7.1 System, Model X76S In the event of a malfunction of this module, Power: 115 VAC, 60 Hz check field wiring to the input terminal connector of the X53-2000 Barrier Module (schematic Power Consumption: 100 VA t X76C53). Check fuse in the power supply and Operating Temperature: 320 to 165°F(00 to 75°C) measure with a DC voltmeter the voltage across the output of the power supply, confirming 21.6 Dimensions: to 30 VDC. 9 x 9.5 x 4.2 inches (22.86 x 24.13 x 10.67 cm) Replace the X53-2000 Barrier module. If this Mounting: General purpose area; wall-mount does not solve the problem, the cause is in the <13>Approved, (R Listed 48RO alarm module, which will have to be replaced. . 7.2 Intrinsically Safe Barrier Module X53 Number of Inputs: Two per module Sensors Voltage: 24 VDC, current limited 5.0 GENERAL SYSTEM DESCRIPTION Sensor: Dry contact The Ronan Series X76S Leak Detector Monitor is Output Interface to Alarm Module: Relay a four-point monitor system of general-purpose design contact; normally open/normally closed; equipped with certified, intrinsically safe barriers to selectable interface with field contacts that are located within a Power Consumption: 750 mW per input hazardous area as described in section 1.0. The field Supply Voltage: 24 VDC from I.S. power supply contact, when transferring from normally open or normally closed to its off-normal state, will be visually FM Approved, UL Listed 48R0 indicated via the light-emitting diode and the audible buzzer will sound. The front-panel-mounted pushbutton 7.3 Alarm Module allows the operator to acknowledge the alarm, thereby Input Signal: Dry contact from X53 Barrier changing the flashing LED to steady-on and silencing Module the audible alarm. The test pushbutton, if pressed, will Contact Voltage: 24 VDC (supplied by X76S) actuate all alarm points to verify proper operation of the logic and the LEDs. Number of Inputs: One per module Output: Auxilary contact; Form C, one per module Contact Rating: 2 Amp at 115 VAC or 2 Amp at 28 VDC resistive . 4 :' Sy.: