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IQ plus
810 XPCD
®
Explosion Proof Digital Weight Indicator
Installation Manual
67691

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Table of Contents
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Summary of Contents for Rice Lake IQ plus 810 XPCD

  • Page 1 IQ plus 810 XPCD ® Explosion Proof Digital Weight Indicator Installation Manual 67691...
  • Page 2: Table Of Contents

    2.1 IQ plus 810 XPCD Enclosure ........
  • Page 3 IQ plus 810 XPCD Installation Manual...
  • Page 4: About This Manual

    This manual provides information on installation of the IQ plus 810 XPCD. The installer should be familiar with the National Electrical Code and RP 12.6 ( Recommended Practice ) requirements for installation of equipment in hazardous areas (NEC Article 504, Intrinsically Safe Systems ) published through the Instrument Society of America.
  • Page 5 The push buttons, rotary switches and sealing fittings are all attached to the enclosure via drilled and tapped holes in the enclosure. Just as with the flange, all threaded operators and fittings carefully control the flame path. IQ plus 810 XPCD Installation Manual...
  • Page 6 Enlarged view below Explosion Propagation of Gas due to Pressure from an Internal Explosion The distance from the boundary of Cooling from the inside of the enclosure to the Expansion of Gas gasket is known as the Flame Path. (Boyle’s Gas Law) This distance must be at least 1”...
  • Page 7: Introduction

    Introduction The IQ plus 810 XPCD is a dual-channel digital weight indicator designed and approved to operate as an intrinsically safe system in a wide variety of scale and weighing applications. The indicator is housed in a cast aluminum explosion proof enclosure and can be safely used when all of the cover bolts are properly installed and the sealing fittings are packed and cemented.
  • Page 8: Front Panel Keypad And Annunciators

    Front Panel Keypad and Annunciators Figure 1-1 shows the IQ plus 810 XPCD front panel. The IQ plus 810 XPCD display consists of 27 individual externally mounted buttons for setpoint or fixed tare entry, gross/net, tare, units and print. Table 1-1 lists the button functions.
  • Page 9: Installation And Wiring

    The mounting and installation of the IQ plus 810 XPCD must be into Division II or safe electrical area per NEC, Section 500. The inside of an explosion proof enclosure is classified as a Division II environment.
  • Page 10: Sealoff Fittings

    Sealoff Fittings The utmost care must be taken to completely seal the inside of the enclosure off from the outside world. To do this all wiring into and out of the enclosure must be in conduit using sealoff fittings between the enclosure and the conduit.
  • Page 11: Cabling And Conduit Runs

    Cabling and Conduit Runs 2.3.1 Cabling There are two types of cables that pass through a sealoff fitting, single conductor and multi conductor. Single Conductor Cabling Single conductor cables are typically redundant ground wires (used with resistive intrinsic safety barrier). Due to the nature of the method by which insulation is applied to wire, a single conductor wire (single or multi strand) can be considered gas tight.
  • Page 12: Conduit Runs

    2.3.2 Conduit Runs Conduit can be run either vertically or horizontally. But either way the conduit must be sealed properly to maintain the explosion proof integrity of the unit. The following paragraphs explain the proper way to install a conduit run and the sealing fittings. Horizontal Conduit Runs ®...
  • Page 13: Ac Power Wiring

    AC Power Wiring Intrinsic Safety Barriers Electrical connections made in an explosion proof The IQ plus 810 XPCD is designed to be used by installation are made through rigid steel conduit personnel already trained and familiar with intrinsic through threaded openings in the back or sides of the safety barriers.
  • Page 14: Intrinsic Safety Grounding

    Load Cell Wiring If an instrinsic safety barrier self destructs, do not replace it. Find out what caused the problem. Do not The load cell wiring from the IQ plus 810 has been assume the problem can only be in the indicator. connected to the intrinsic safety barriers at the factory, Only when the problem is corrected should a barrier (see Figure 2-3).
  • Page 15: Configuration And Setup

    Configuration and Setup The IQ plus 810 configuration is the same as the normal IQ plus 810. Please refer to the 800/810 Installation and Operation manual , PN 42100 for further details on configuring your indicator. Enable the configuration by turning on the switch at the top of the circuit board mounted on the door of the enclosure.
  • Page 16: Appendix

    Appendix Troubleshooting If any of the following conditions are observed: • Suspect water or leakage in the enclosure • A switch gets broken or sheared off • The glass becomes scratched, cracked, chipped, or pitted. • A sealing fitting is sheared off or damaged •...
  • Page 17: Iq Plus 810 Xpcd Limited Warranty

    IQ plus 810 XPCD Limited Warranty Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by the Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects in materials and workmanship for one year.

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