SWI L312 Installation And Operation Manual

SWI L312 Installation And Operation Manual

Multi-point, vertically-mounted liquid level float switch

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L312
LIQUID LEVEL
FLOAT SWITCH
INSTALLATION AND OPERATIONS MANUAL
Multi-Point, Vertically-Mounted Liquid Level Float Switch

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Summary of Contents for SWI L312

  • Page 1 L312 LIQUID LEVEL FLOAT SWITCH INSTALLATION AND OPERATIONS MANUAL Multi-Point, Vertically-Mounted Liquid Level Float Switch...
  • Page 2 Solutions With Innovation is committed to providing full customer satisfaction; both in quality products and in quality service. Contacts Phone: 203-729-6434 Mon-Fri, 9 AM - 5 PM EST Fax: 203-729-0541 for General Inquiries Email: sales@innovativesensing.com L312 MULTI-POINT LIQUID LEVEL FLOAT SWITCH...
  • Page 3: Table Of Contents

    3.2 Theory of Operation............7 3.3 Troubleshooting..............7 3.3.1 External Causes............7 3.3.2 Unit Causes..............8 3.4 Agency Approvals..............9 3.5 Specifications................9 3.5.1 Physical Specifications..........9 3.5.2 Electrical Specifications..........9 3.5.3 Switch Wiring Codes...........9 3.5.4 Dimensional Specifications........10 3.6 Model Configurator............10 3.7 Notes...................11 L312 MULTI-POINT LIQUID LEVEL FLOAT SWITCH...
  • Page 4: Installation

    L312 Multi-Point Liquid Level Float Switch. 1.2.2 Equipment and Tools No special equipment or tools are required to install the L312 Multi-Point Liquid Level Float Switch. The Following Are Recommended: • Wrenches, thread sealant, gaskets and/or bolting as required for the process connection.
  • Page 5: Mounting

    1.3 MOUNTING The L312 Multi-Point Liquid Level Float Switch is available in a variety of threaded and flanged mountings. These devices are meant to be installed on the top or bottom of a process tank. They should be mounted in an area free of turbulence or direct streams.
  • Page 6: Preventative Maintenance

    2.0 PREVENTATIVE MAINTENANCE Periodic inspections are necessary to maintain the proper functionality of the L312 Multi-Point Liquid Level Switch. The switch is a safety device that protects the equipment it serves. A systematic program of preventative maintenance should be implemented at the time of installation. If the following instructions are completed routinely, the switch will provide continuous, reliable protection.
  • Page 7: Reference Information

    Stainless Steel Adjustable 3.3 TROUBLESHOOTING The L312 Multi-Point Liquid Level Switch is designed and engineered for trouble-free operation over a wide range of operating conditions. Common problems are discussed in terms of their symptoms and recommended corrective actions. 3.3.1 External Causes An initial indication of improper operation is the failure of the controlled equipment to function (pumps will not start or stop, signal lamps fail to light, etc).
  • Page 8: Unit Causes

    SWITCH ARE IN WORKING ORDER, BUT EXTERNAL CONDITIONS AS DESCRIBED IN SECTION 3.3.1. THE UNIT STILL DOES NOT FUNCTION. If you are still in doubt about the condition or performance of your control, consult the factory for further instructions. L312 MULTI-POINT LIQUID LEVEL FLOAT SWITCH...
  • Page 9: Agency Approvals

    1/8” (3 mm). The maximum number of actuation levels depends on the wiring Blue Blue/Blue type selected. Brown 3 Standard Lead Wires are 24” long, 22 AWG, UL- Orange approved wire. L312 MULTI-POINT LIQUID LEVEL FLOAT SWITCH...
  • Page 10: Dimensional Specifications

    16 Teflon PTFE (H) ® 1” NPT Nylon 07 1 ¼” NPT Buna-N 08 1 ½” NPT Polysulfone (H) 2” NPT L 3 1 2 - 0 1 0 1 2 0 0 3 L312 MULTI-POINT LIQUID LEVEL FLOAT SWITCH...
  • Page 11: Notes

    3.7 NOTES L312 MULTI-POINT LIQUID LEVEL FLOAT SWITCH...
  • Page 12 Products returned under RMA’s can be issued through local representatives, or by the SWI Service Policy must be returned by prepaid contacting the factory directly. transportation. Solutions With Innovation will repair or...

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