Document MGOwK2kgx0VVpwmMdVaGYb4xz

Pioneers in Precision PLAINTIFF'S I EXHIBIT ' CHV-45 LEEDS & NOFtTHFtUF* COMPANY' 2442 S DOWNING ST DENVER. COLORADO 80210 303 744-1047 January 9. 1970 Chevron Oil Company P. 0. Box 20002 El Paao( Texas 79998 Attention: Mr. J. E. Blaler Purchasing Dept. Reference: Your Order EPR-30984 Gentlemen: We thank you for the above-referenced order. The thermocouple heads #PI-181 listed as your Item 1 are priced at $8.50 each. For yout_Jtqa-2y--gercannot supply the specified insulation on thermo^ couple-extefislonwlre. We suggest a wire part #16*51-2 as a substitute. This wire has asbestos insulation on each wire with asbestos braid overall* and it is. priced at $0.22 per foot. We are enclosing Data Sheet 1)1.1311 which giveajfche'' specifications on our extension wire, which we hope you will find uspfulT' \ We are holding~~ypu3F--order, here-Jja--thg-Pcavar Office until you advise should proceed on Item 2. Very truly yours. LEEDS AMD N0RTHRUP COMPANY tkCpf**: Rosemarie Dodrill Customer Service GENERAL OFFICES NORTH WALES. PA. CHEV BB 0000331 lsn Thermocouple Extension Wires D1.1311 1968 To secure the advantages of automatic reference junction compensation, the extension wires con necting: thermocouples to instruments must be of the same materials as the thermocouples, or of materials having essentially the same temperature-emf relationship over the ambient tempera ture range. Extension wires are available with various insu lations, chosen with a view to durability in the surroundings to which they may be exposed. The following table should provide a guide to your choice. INSULATION CHARACTERISTICS Upper Temp. Limit* Lower Temp. Limit** Insulation Abrasion Resistance Moiiture Absorption Resistance Remarks 500 F - 40 F Silicone-Impreg nated Asbwtoa Good up to 400 F Good up to 400 F Above 400 F, abrasion and moisture-''.- absorption resistance destroyed. Lim-; ited to 600 F to prevent sulphur^ corrosion. .a 500 F + 32 F Asbestos, Moisture- Fair up to 250 F and Heat-Resistant - Compound 475 F - 90 F Extruded Teflon Excellent 250 F - 40 F Extruded Nylon (Type 103) Excellent Good up to 250 F Excellent Good Above 250 F, moisture-absorption re-; 5stanee permanently destroyed. Lim-> ited to 500 F to prevent sulphur; corrosion. 5` Above 600 F, tends to give off small? amounts of noxious vapor. Resistant ; to most acids and vapors. Material? will soften above 480 F. General purpose, except for somechemical applications; should not? be used in water, or high humidity.J 220 F OF Polyvinyl Chloride (105 C) Very Good Excellent General purpose. Material will-softeal and flow above 225 F. * 200 F 0 F Cotton, Silk, or Enamel Fair Enamel: Excellent Becomes brittle and eventually dis-3 integrates above 212 F. 195 F - 40 F Neoprene (90 C) Excellent Very good Vary good resistance to oil. 4 165 F 165 F - 65 F - 40 F Heat-Raristsnt Rubber Buna S 150 F - 40 F Lead Sheath Very Good Very Good Good Very Good Very Good Excellent Provides good insulation when subject^ to temperature, but eventually be-r comes nerd end brittle. Not resistant tooiL Sn* Resistant to water end corrosive fluids f which do not attack lead. 200 F - 40 F Rayon, Cellulose Acetate Lacquer Good Good Used as protective braid. *For some materials heat causes softening* for others embrittlement. Materials listed will withstand higher, short-term temperatures than those shown; the upper limit it a relative figure at which continuous, long-term operation may be expected. **Low temperatures cause insulating material to stiffen and become less flexible. Insulations listed wtU withstand much lower temperatures than those shown, providing the wires ore not flexed; this limit is a relative figure at which the wire can be considered flexible. EXTENSION WIRES Duplnx ... Stranded Conductors Thermocouple Extension Wires Insulation On Each Conductor Overall AWG ISA Code Wire Number Platinum-Rho dium, Platinum Copper and 011 Alloy Enamel, Asbestos Heat-Resistant Rubber Asbestos Braid Buna S or Polycbloroprene Iron-Constantan Iron and Constantan Chromet-Alumel Chromel and Alumel Enamel, Asbestos Enamel, Asbestos Asbestos Braid Asbestos Braid 16 SX16H 16-60-1* 13 18-60-7* 16 JX16H 16-51-4* 16 KX16H 16-59-3* S/ucM in "itnciuvcd" Set tot "Tradename, 0/ Hotiin* M/fj. C. Leeds & NOFtTHFtur* company' Pioneers in Precision ca > r<) fi fT) U 32 U Thermocouple Duplex ... Solid Conductors Extension Wires Insulation On Each Conductor Overall Approx. AWG Dimensions (Inches) ISA Code Wire Number Platinum-Rhodium, Platinum Copper and 111 Alloy Enamel, Asbestos Asbestos Braid Heat-Resistant Rubber Weatherproof Braid 16 16 S-i X >*4 1S.<5 X 14 SX16H 16-60-2* -- 16-60-3* Iron-Constantan Iron and Constantan Enamel, Asbestos Polyvinyl Polyvinyl Polyvinyl Asbestos Braid Polyvinyl, Lead Sheath Polyvinyl Nylon 16 s4 x 1*6 JX16H 16-51-2__ 16 JX16L 16-51-3 IS `Ux H JX16M 16-51-15* 16 -- 16-51-16*1 Chromel-Alumel Chromel and Alumel Enamel, Asbestos Polyvinyl Polyvinyl Asbestos Braid Polyvinyl, Lead Sheath Polyvinyl 16 *4 x KX16H 16-59-2* 16 H KX1GL 16-59-4 ^ 16 U*X H KX16M 16-59-16* Copper-Constantan Copper and Constantan Enamel, Asbestos Polyvinyl Polyvinyl Asbestos Braid Polyvinyl, Lead Sheath Polyvinyl 16 s* x 1*4 TX16H 16-56-2*1 16 H TX16L . 16-56-6 ` 16 x H TX16M 16-56-18* *Sforked in " /HITtaped" quantities. Set baek pace. 1Far storked conductors selected to special limits of error (see table below), add suffix "A". Other conductors can be similarlt selected at additional charge. Multi-Conductor Extension Wire Cables. Pri marily for installations using multiple-point instruments where a remote reference junction is desirable, these multi-conductor cables provide either 28, 40 or 48 copper conductors, and an iron, a constantan, an Alumel and a Chromel conductor, (all AWG #22), permitting the use of the cable with either iron-constantan or Chromel-Alumel couples. Individual conductors are insulated with polyvinyl plastic, with the overall covering of Mylar wrap, metal braid, and a polyvinyl plastic sheath. Color coding: all copper conductors, black: iron, white; constantan, red; Chromel, yellow; Alumel, green. 22-65-2 32-Conductor Extension Wire Cable. Consists of 1 pair of iron and constantan conductors, 1 pair of Chromel and Alumel con ductors, and 28 individual copper conductors. 22-37-6 44-Conductor Extension Wire Cable. Same as 22-65-2, except has 40 individual copper conductors. 22-65-3 52-Conductor Extension Wire Cable. Same as 22-65-2, except has 48 individual copper conductors. LIMITS OF ERROR FOR STANDARD AND ALTERNATE EXTENSION WIRES Type of Thermocouple Corresponding Extension Wire Type Temperature Range Extension Wire Limits of Error Standard Special* Copper-Constantan (38) (T) Iron-Conatantan (J) Chromel-Alumel (K) Chromel-Constantan (E) Plat, Rhodium-Plat. (R,S) Copper and Conatantan (38) (T) Iron and Constantan (J) Chromel and Alumel (K) Chromel and Constantan (E) Copper and 111 Alloy -75 to 200 F 0 to 400 F 0 to 400 F 0 to 400 F 75 to 400 F 1X F 4 F 4F 3P 12 F** X F 2 F 2F 2 F 'or conductors leleeted to riieeinl limits of trrvr, *4f f<i6It u6rc. ** ,\pftlicnblw fur r rtftrtnct junction Itmtxrutura of 7Hi F onlg. Spstiai limit* of error ort out /ir'ii7u6/f. CHEV bb 0000333 I.S.A. EXTENSION WIRE COLOR CODE AS NOW USED BY L&N Thermocouple Material Wire Inaulation Color Code Positive (+) . Negative (--) Outer Inaulation Plst.-RhodIum,Flat. (R, S) Iron-Constantan (J) Chroma!-Alumel (K) Copper-Constantan (38) (T) Plat-Rhodium, Plat. (R, S) Iron-Constantan (J) Chromal-Alumel (K) Copper-Constantsn (88) (T) Duplex Wire* Copper (Black) Iron (White) Chromel (Yellow) Copper (Blue) #11 Alloy (Red) Constantan (Red) Alumel (Red) Conatantan (Red) Single Conductors M Copper (Black) Iron (White) Chromel (Yellow) Copper (Blue) #11 Alloy (Red, black tr.) Constantan (Red, white tr.) Alumel (Red, yellow tr.) Constantin (Red, blue tr.) Green Black Yellow Blue -- Duplex Extension Wires in Conduit. Dimen sions of duplex extension wires are included in the table on the preceding page. Data on the approximate number of No. 16 AWG extension wires which may be run in conduit of given size are as follows: Wires Sisa of Conduit (Inches) ., Insulation Gauge M H 1 IK IK 2 2K 3 SK 4 4H 5 6 Heat-Resistant Rubber. Waxed Braid Enamel, Aabestoa Wrap, Cellulose Acetate Wrap, Asbestos Braid 16 16 35 13 9 16 22 36 52 5 9 12 21 30 80 107 139 173 218 sis 46 62 80 100 126 182 Heat-Resistant Rubber, Waxed Braid, . 16 1 2 3 5 7 12 18 27 87 48 60 75 109 ; Lead Sheath Polyvinyl Plastic, Weatherproof Braid 16 4 7 11 20 28 46 67 103 138 177 222 279 404 Heat-Resistant Rubber, Weatherproof Braid Polyvinyl Plastic, Polyvinyl Plastic Polyvinyl Plastic, Nylon 16 16 16 35 9 16 22 36 52 80 107 139 173 218 315 3 6 10 18 25 41 * 58 90 120 154 193 243 840 " 6 10 17 29 40 65 93 143 192 247 310 390 560 Resistance of Duplex Extension Wires. Extension Wires Iron A Constantan Chromel A Alumel Copper A Conatantan Copper A #11 Alloy Nominal Resistance, Duplex Fairs, in Ohms per 100 Ft at 20 C AWG 16 18 22 14.0 -- 56.7 23.2 -- 93.9 11.7 -- -- 1.48 2.40 -- CHEV BB 0000334 PACKAGED QUANTITIES OF EXTENSION WIRES Wires marked with (*) on the first and second pages are stocked at the L&N plant for prompt delivery in "packaged" quantities, consisting of a number of connected unit lengths. For. continuous lengths less than 500 feet, the minimum unit length is 25 feet; for lengths be tween 500 feet and 1000 feet (the maximum con tinuous length), the minimum unit length is 50 feet. Other unit lengths are 75, 100, 250, and 1000 feet. Ordering packaged quantities in this manner speeds deliveries, since selection of the specified length becomes merely a matter of cutting stocked wire (pre-marked at unit lengths) at a point equal to the number of units required. Therefore, to facilitate handling of orders, we reserve the right to supply a packaged quantity of the nearest larger integral length when a non standard, in-between length is ordered. The table below gives the minimum unit length (as the numerical part of the sufiix) and the number of unit lengths, for each packaged quantity of continuous length. It should be em phasized that, although only one length of wire is ordered and shipped, invoicing is based on the number of unit lengths. For example, on an order for a continuous length of 175 feet of 16-60-2 wire, such a length would be shipped, but invoicing would be for 7 16-60-2-F-25. How to Order 1. Specify Wire Number. 2. Specify either: (a) the length required, in feet, or (b) where applicable, the number of "pack aged" quantities required, as described in the table above. Note: For conductors selected to special limits of error available from stock (suffix "-A"), mini mum order is 500 feet. "Packaged" ordering does not apply. Leeds ok NOFtTUFtuF* company Pioneers in Precision North Wales, Pa. 19454 * Shat! 01.1311 CHEV BB 0000335 MI3.1S? rrinMtf In USJk.