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® WorleyParsons <br /> resources&energy <br /> the system. <br /> All corrected emissions data and a common alarm will be hard wired to the DCS system. <br /> UPS power will be provided for the CEMS analyzers, controller, and PC to ensure proper <br /> surge protection, power conditioning, and protection in the event of a momentary loss of <br /> power. <br /> The local control unit located with the CEMS equipment will allow access to the <br /> operational status of the CEMS and provide the capability to initiate both automatic and <br /> manual calibrations. <br /> 5.6 Instrumentation Design Criteria/General Requirements <br /> 5.6.1 General <br /> The instrumentation and control equipment/systems and materials and their installation will <br /> be designed in accordance with applicable codes, industry standards, this scope document, <br /> and material selection specified in this section. Instruments and valves will be pre- <br /> calibrated, tagged and/or programmed by the supplier. <br /> Pneumatic signal levels, where used, will be 3-15 psig for pneumatic transmitter outputs, <br /> controller outputs, electric-to-pneumatic converter outputs, valve positioner inputs, etc. <br /> Signal levels of electric to pneumatic converters may also be 6 to 30 psig, depending on <br /> application. <br /> Electronic transmitters and controllers will be designed for proportional output of 4-20 mA <br /> DC with 24V DC power supply from the DCS into 600 OHM maximum loop resistance. <br /> No primary sensor full-scale signal level, other than thermocouples, will be less than 10 <br /> mV or greater than 125 V. Transmitters requiring an external power supply will be <br /> connected to 115 VAC. <br /> An identification tag showing the purchaser's identifying tag number as per the data sheets <br /> will be attached to each field instrument. The tag will be a minimum of 20 gage stainless <br /> steel wired to the transmitter with a minimum letter height of 0.25", 85 characters <br /> maximum or permanently stamped on the instrument with 65 characters maximum. As a <br /> minimum the tag should have the manufacturer name, model number and purchase order <br /> number. For safety, tag wired ends will be curled. <br /> Each field instrument will be installed as per construction installation drawings. <br /> Interchanging instruments during construction is prohibited. <br /> Field instruments, digital indicators, DCS, PLC, etc. will be configured for the following <br /> engineering units: <br /> Lodi Energy Center 3.5 - 6 LEC AFC <br /> 071608 Rev.A <br />