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Site Preparation and Installato Instructions <br />EMC UST Monitoring System <br />r rNil�r <br />KIM I'll ANIANIS gal <br />WARNING: BE SURE POWER TO THE EMC CIR- <br />CUIT IS TURNED OFF BEFORE CONNECTING <br />POWER WIRING. FAILURE TO DO SO COULD RE- <br />SULT IN DEATH, SERIOUS PERSONAL INJURY <br />PROPERTY LOSS AND EQUIPMENT DAMAGE. <br />Power Supply Rating: <br />Input Power: (L', N, G); 120 VAC, 50/60 Hz, 10OW Max. <br />Output Power: Alarm Relay Contacts, resistive load — 120 <br />VAC, 2A Max.; or, 24 VDC, 2A Max. <br />1. Connect a #12 AWG (or larger) barrier ground conductor <br />from the ground lug closest to the conduit entry to the <br />earth bus on the power panel being used to supply AC line <br />voltage to the EMC monitor (see Figure 11, "Power Wiring <br />Diagram"). <br />NOTE: If connecting to a subpanel, be sure there is an <br />"e earth ground connection between the subpanel and <br />the main power panel in accordance with the National <br />Electrical Code. <br />GROUND LUG <br />1A FUSE 3AG SLO-BLO <br />o <br />—A-77 <br />MODULE <br />CONNECTOR <br />00 <br />GROUNDLUG <br />CLOSEST TO <br />CONDUIT ENTRY <br />MONITOR <br />RIGID <br />i °a <br />CONDUIT <br />RA U <br />N L, <br />Figure 11. Power Wiring Diagram. <br />2. Connect the power wires (L' and N) to the proper <br />terminals in the AC connector (see Figure 11). <br />3. Connect the chassis ground wire from the ground lug <br />closest to the conduit entry in the monitor to the earth <br />ground bus on the power panel being used to supply AC <br />line voltage to the EMC monitor (see Figure 11, "Power <br />Wiring Diagram"). <br />4. Connect the power supply wires in the power panel to a <br />separate dedicated circuit. <br />5. Check to be sure that the electrical resistance between the <br />monitor ground terminal and a known good earth ground <br />is less than 10. <br />E. PROBE AND SENSOR WIRING CONNECTIONS. <br />N OF THIS PRODUCT, <br />COMPLY WITH THE NATIONAL ELECRICAL <br />CODE; a ► <br />AND ANY OTHER APPLICABLE SAFETY CODES. IN <br />ADDITION, <br />DURING INSTALLATION, SERVICE AND REPAIR <br />TO PREVENT PERSONAL INJURY, PROPERTY <br />LOSS AND EQUIPMENT DAMAGE. <br />I <br />WARNING: BE SURE AC POWER TO THE SYSTEM <br />IS OFF BEFORE OPENING THE FRONT -PANEL <br />COVER AND CONNECTING PROBE AND SENSOR <br />WIRES. IF HIGH VOLTAGE IS SHORTED ACROSS <br />ANY BARRIER TERMINAL, EXPLOSION AND FIRE <br />COULD RESULT. <br />Connectors are supplied with each sensor and probe module. <br />They provide screw terminations for each sensor and probe. <br />10 CAUTION: ONCE PROBES AND SENSORS HAVE BEEN <br />CONNECTED AND THE SYSTEM HAS BEEN STARTED <br />AND PROGRAMMED, MODULE POSITIONS, CON- <br />NECTOR POSITIONS AND WIRE POSITIONS CANNOT <br />BE CHANGED WITHOUT REPROGRAMMING THE <br />SYSTEM! <br />IMPROPER SYSTEM OPERATION WILL RESULT IF <br />ANY ONE OF THESE POSITIONS IS CHANGED <br />WITHOUT REPROGRAMMING. <br />Be sure to accurately record on the circuit directory the type <br />of module, and the location of each device wired to the <br />connector. <br />Identify each connector with a self-adhesive number label <br />according to the slot number. <br />1. Two -Wire Probes and Sensors. <br />Connect the two color -coded or marked wires from each <br />probe or sensor to the appropriate terminals in the probe <br />or sensor module connectors (see Figure 12, "Probe <br />Interface Module Wiring Diagram" and Figure 13, "Inter- <br />stitial Liquid Sensor Interface Module Wiring Diagram"). <br />PROBE ► <br />O ® DUTPUTR PROBE <br />GUiPUi RAT NGS <br />n SAW <br />PROBE IN E MODULE O <br />— MODULE <br />0 0 0 0 0 0 0 0 CONNECTOR <br />RIGID MONITOR <br />CONDUIT—/UP TO a <br />`-PROSES' <br />PROBE-, PROBE.a <br />Figure 12. Probe Interface Module Wiring Diagram. <br />9 <br />14 - <br />