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Jul 06 12 01 : 08p Elit V Contactors 120946 42 p. 4 2 System Description Basic Troubleshooting Procedures Basic Troubleshooting Procedures To help ensure proper and safe troubleshooting and repair procedures for the TLE ::onsoles,the following steps should be taken in the order they appear, prior to servicing the system: 1. Review and thoroughly understand the"Safety Warnings"on page 1-2 of thi:,i anual. 2. Review the"System Parts Identification"on page 2-1 to locate components. 3. Perform an "Basic Troubleshooting Procedures"on page 2-8. If the system f.::-.il -he Intrinsic Safety Check,turn the AC Power circuit breaker at the service panel to the OFF position,discor n c3 and cap the AC wires in the monitor,and disconnect and cap all probe and sensor field wires in the probe; -d sensor junction boxes. 4, Perform the"Visual Inspection of Console Interior"on page 2-9. 5. Print out all system and tank setup parameters.IMPORTANT!Setup paramete can be lost during some service procedures.This printout will allow you to re-profile the system with the :ame parameters when service is complete. 6. Refer to the appropriate section of this manual (or another manual,see"Rel«:e manuals" on page 1-1)to troubleshoot a faulty component of the system. Intrinsic Safety Check Turn off,tag and lockout power to the console before starting this intrins :safety check. Definition of Intrinsic Safety Circuit and System-*An intrinsically safe circuit it: c i a in which any spark or thermal effect is incapable of causing ignition of a mixture of flammable or combustible ma Arial in air under prescribed test conditions.An intrinsically safe system is an assembly of interconnected intrinsic a l safe apparatus, associated apparatus,and interconnecting cables in that those parts of the system that may It :used in hazardous (classified) locations are intrinsically safe circuits. *Excerpt from latest National Electrical Code Handbook. I - ING 'I Explosion could occur if other wires share coiid ;i is or troughs with TLS console intrinsically safe probe,sensor,and 1:is mistor wiring.Conduits and wiring troughs from the console's probes,sers is,and thermistors must not contain any other wires and must enter the cc n rile through their designated preformed knockouts. Improper system operation could result in inacc irate inventory control or undetected potential environmental and health iazards if probe-and sensor- to-monitor wiring runs exceed 1,000 feet.ProLe and sensor-to-monitor wiring runs over 1,000 feet are not UL approved for!:ii :application. To avoid electrical shock resulting in personal i 1 ury,death,equipment damage or damage to the environment,switdi I:F and tag the AC power circuit breaker at the service panel while inspsc i rag,removing,or installing wiring and components. 1. Verify that the TLS console is installed indoors in an accessible location. 2. Verify that the TLS console has*12 AWG (or larger diameter) conductor froin iarrier to earth ground in the power panel. 2-8