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Site Preparatio*94nd Installation Manual TLS-2501 Tank Level Sensing System L SECTION 3. MONITOR INSTALLATION .- 'iv A. PROBE AND SENSOR WIRING INSTALLATION. full two conductors of color-coded,THWN stranded copper wire between the monitor and each probe and sensor location I° ' (Since up to four probes and eight sensors will he wired s i through the single probe wiring conduit,be sure to use a different color-code for each connection).The wires must be of a type designed for use in the presence of gasoline and oil,and must be between AWG 22 and AWG 1 ti.The conduit _ must be properly sealed in accordance with the National Electrical Code (NFPA 70) and the Flammable and Coin bust.ible Liquids Code(NFPA 30)since they pass from a Glass 1,Division for Division 11 area into it non-luvardous area. Note: Label or color code all field wiring to ensure polarity. ••„•, „ ,,, IMPORTANT:IT IS CRITICAL THAT YOU IDENTIFY AND MAINTAIN THE RELATIONSHIP OF IN'T'ERSTITIAL AND PIPING SUMP SENSORS TO THEIR POST- TIONS ON THE TERMINAL STRIP IN THE CON- ••,.w�e,,,..0 SOLE DURING THE WIRING PROCEDURE. FAIL- URE TO DO SO COULD RESULT IN IMPROPER ••••. IDENTIFICATION OF A LEAK LOCATIONI YOU MUST MAINTAIN A VARIFIABLE RELATIONSHIP BETWEEN THE SENSORS AND PROBES IN TANKS AND THEIR CONNECTIONS ON THE WIRING STRIP. APPENDIX A PROVIDES A FORM TO RE- CORD DATATO HELP YOU IDENTIFY THE WIRING SCHEME. B. POWER WIRE INSTALLATION. Pull four (4) color- coded wires for line, neutral,barrier ground (must be s 12 AW AWG or larger)and chassis ground between power panel and TLS Monitor. Figure ti. (larder Covet- CAUTION: overCAUTION:DO NOT CONNECT POWER SI IPPLY WI ICES TO A LIVE CIRCUIT UNTIL ALL OTHER PROBE AND MONITOR WIRING IS COMPLETE.. D. POWER WIRING CONNECTIONS. WARNING:IN INSTALLATION OF THIS PRODUCT,COM- C. MOUNTING. (See Figure 4 for dimensions and mount- PLY WITH THE NATIONAL. ELECTRICAL CODE; ing requirements.) FEDERAL,STATE,AND LOCAL CODES;AND ANY 1. Locate and mark mounting points (4) at. the location OTHER APPLICABLE SAFETY CODES. IN ADDI- selected in 2.C.1 (See Figure 4,"Monitor Dimensions and TION,TAKE NECESSARY PRECAUTIONS DURING Installation Requirements").BE SURETO CONSIDF.RTHE INSTALLATION, SERVICE AND REPAIR TO PRE- WEIGHT OF TIIE TLS MONITOR AND THE MOUNTING VENT PERSONAL. INJURY, PROPERTY LOSS AND SURFACE MATERIAL WHEN SELECTING A MOUNTING EQUIPMENT DAMAGE. FASTENER. WARNING:TURN OFF POWER TO THE SYSTEM BEFORE 2. Irthe fastening device requires an insert in the mounting OPENING THE FRONT PANELS TO AVOID SHOCK surface,drill the appropriate holes and install the inserts. FROM THE POWERSUPPLY.INADDITION,POWER TO THE SYSTEM MUST BE TURNED OFF BEFORE. 3. Loosen the four slot-head screws on the right and left OPENING OR SECURING THE BARRIER COVER. edges of the front panel and swing the panels open. IF HIGH VOLTAGE IS SHORTED ACROSS ANY 4. Locate the hinged intrinsically-safe barrier rover,remove BARRIER PROBE TERMINAL, EXPLOSION OR the two screws and open the cover.(See Figure ti.) FIRE COULD RESULT. 5. Mount the monitorthroughthe four mounting holes inthe I`owerSupplyRat,ing: back of the monitor case. Input.power:(LI, N,(1); 120 V ac,50/60liz, 100W Max. Output. power:Alarm relay contarts,resistive load — 6. Connect power and probe/sensorconduits in appropriate 115 V ac, 2A Max.or, 230 V ac,•LA Max.or,30V de, 2A knockouts. Max. 5