Watlow Electric Series 142 User's Manual
Contents
1. Ps P2 Ir Thermocouple Thermocouple Reset N O L2 HH Fuses 208 240V NC L1 H 3 Figure 3b 208 240V power wiring 142A ____ 2_ 00 P3 Thermocouple P2 2 N O N C Thermocouple com H Reset L2 eil Figure 3c Reset switch Customer Supplied N O Momentary Switch TE NOTE Jumpering the reset terminals does not convert from limit to an on off control mode Temperature Control Output L2 External 56 Ps 2 In QO e Load 9 N O N C COM Thermocouple Thermocouple Reset t2 L1 Fuse Figure 3d 3A mechanical relay wiring Ps Ir QO N O N C COM Thermocouple H Thermocouple H Reset e d Figure 3e Thermocouple wiring NOTE Extension wire for thermocouples must be of the same alloy as the thermocouple itself to limit errors Remote Setpot Green Ps Black Red P2 Ir gt N O N C COM Thermocouple Thermocouple Reset te Red Figure 3f Remote setpot 142A 2___ __ 00 Watlow Series 142 User s Ma2. 3 For bolted dial scale assembly drill four 3mm 0 125 in diameter clearance holes If you are using a screw assembly use a tap drill Tap drill sizes used are Tap Drill Size Screw Thread Size 44 2mm dia 0 086 in 4 36 43 2mm dia 0 089 in 4 40 42 2mm dia 0 093 in 4 48 4 Drill four 5mm 0 189 in diameter holes in desired panel location See Figure 2b 5 Mount the Series 142 with four screws 6 Connect sensor load and remote setpot assembly per Wiring Diagram See the wiring pages Mechanical Zero 4 mounting holes 23mm 0 9 in 68mm lt gt 2 69 in sq gt 43mm 76mm 1 72 in 3 00 in sq Figure 2b Setpot dimensions and mechanical zero location Dial Scale Alignment to Mechanical Zero 1 Turn the dial scale knob completely counterclockwise to mechanical zero 2 If the Indicator line on the setpot knob skirt and Mechanical Zero represented by a small line beyond the low end of the scale are not aligned loosen both set screws on the setpot knob and rotate the knob until both lines meet 3 Tighten both set screws 2 User s Manual Watlow Series 142 NOTE All terminals are 4mm 1 4 in quick connects Ps P2 Q N C N O Thermocouple Thermocouple COM Reset Neutral L2 Ha 120V L1 Fuse H Hot Figure 3a 120V power wiring 142A ____ 1_ 00
3. 60 Hz Nennstromverbrauch Max 6 VA Erfullt die wichtigsten Normen der folgenden Anweisung en der Europ ischen Union unter Verwendung des wichtigsten Abschnitts bzw der wichtigsten Abschnitte die unten zur Befolgung aufgezeigt werden 89 336 EEC Elektromagnetische Kompatibilitatsrichtlinie EN 61326 1997 mit A1 1998 Elektrisches Ger t fur Messung Kontrolle und Laborgebrauch EMV Anforderungen St rfestigkeit Industriebereich Klasse A Emissionen EN 61000 4 2 1996 mit A1 1998 St rfestigkeit gegen elektronische Entladung EN 61000 4 3 1997 St rfestigkeit gegen Strahlungsfelder EN 61000 4 4 1995 St rfestigkeit gegen schnelle St Be Burst EN 61000 4 5 1995 mit A1 1996 St rfestigkeit gegen Uberspannung EN 61000 4 6 1996 Geleitete St rfestigkeit EN 61000 4 11 1994 St rfestigkeit gegen Spannungsabfall kurze Unterbrechungen und Spannungsschwankungen EN 61000 3 2 1995 mit A1 3 1999 Harmonische Stromemissionen EN 61000 3 3 1995 mit A1 1998 Spannungsfluktationen und Flimmern EN 61000 3 3 1995 Grenzen der Spannungsschwankungen und Flimmern 73 23 EEC Niederspannungsrichtlinie EN 60730 1 1993 Automatische elektrische Regelsysteme fur de Haushalt und hnlichen Einsatz Teil 1 Allgemeine Richtlinien EN 60730 2 9 1995 Automatische elektrische Regelsysteme f r den Haushaltund hn lichen Einsatz Teil 2 Spezifische Richtlinien Abschnitt 2 9 Temperaturregelsysteme Declara que el producto siguiente Desig
4. A1 1998 Electrostatic Discharge Immunity EN 61000 4 3 1997 Radiated Field Immunity EN 61000 4 4 1995 Electrical Fast Transient Burst Immunity EN 61000 4 5 1995 With A1 1996 Surge Immunity EN 61000 4 6 1996 Conducted Immunity EN 61000 4 11 1994 Voltage Dips Short Interruptions and Voltage Variations Immunity EN 61000 3 2 1995 With A1 3 1999 Harmonic Current Emissions EN 61000 3 3 1995 With A1 1998 Voltage Fluctuations and Flicker 73 23 EEC Low Voltage Directive EN 60730 1 1993 Automatic electrical controls for household and similar use Part 1 General requirements EN 60730 2 9 1995 Automatic electrical controls for household and similar use Part 2 Particular requirements Section 2 9 Temperature sensing controls d clare que le produit suivant D signation Num ros de mod les Fran ais S ries 142 142A 2 ou 3 600 999 1 ou 2 1 2 3 ou 4 Nimporte quelle combinaison de deux lettres ou chiffres R gulation de temp rature Cat gorie d installation ll Degr de pollution 2 Tension nominale 120 ou 208 240 V c a Fr quence nominale 50 ou 60 Hz Consommation d alimentation nominale Classification 6 VA maximum R pond aux normes essentielles des directives suivantes de l Union europ enne en utilisant les standards normalis s ci dessous qui expliquent les normes auxquelles r pondre Directive 89 336 CEE sur la compatibilit lectromagn tique EN 61326 199
5. differential 1 7 C 3 F nominal Agency Approvals e WW and MM File 643684 197 Commercial Cooking Appliances 873 Temperature Indicating and Regulating Equipment 991 Test for Safety Related Controls Employing Solid State Devices 03236001 approved Gas Appliance Thermostat ANSI 221 23 e CE 89 336 EEC Electromagnetic Compatibility Directive EN61326 Immunity Class B Emissions e CE 73 23 EEC Low Voltage Directive EN60730 1 EN60730 2 9 Safety Operator Interface e Non adjustable factory fixed or remote adjustable set point Remote Set Point Dial scale calibrated to compensate for sensor non linearity e Dual F C scales Accuracy Adjustable Set Point Calibration accuracy 1 of span at 25 C 3 C 77 F 5 F ambient and rated line voltage 1 Set point accuracy 3 of dial scale e Accuracy span 540 C 1000 F minimum Fixed Set Point Calibration accuracy 6 C 10 F of setting at 25 C 3 C 77 F 5 F ambient and rated line voltage 1 Thermocouple Stability e Thermocouple Typically 9V C ambient 5yV F ambient input referenced e RTD Typically 0 2 C C ambient 0 2 F F ambient Voltage Stability e 0 01 of span min span of 540 C or 1000 F per of rated line voltage Thermocouple Input e Grounded or ungrounded Type E J K or T Sensor break protection de energizes output e Factory set thermocouple ranges Output Electromechanical relay SPDT 3A 120 240
6. the load circuit A limit controller can pro tect equipment and people when it is correctly installed with its own power supply power lines switch and sensor manual reset A feature on a limit controller that requires human intervention to return the limit to normal operation after a limit condition has occurred safety limit An automatic limit intended for use in applications where an over temperature fault may cause a fire e Call or fax Customer Service for a Return Material Authorization RMA number before returning a con troller e Put the RMA number on the shipping label and also on a description of the problem e 20 of net price restocking charge applies to all stan dard units returned to stock Technical Assistance If you encounter a problem with your Watlow con troller review all of your configuration information to verify that your selections are consistent with your application inputs outputs alarms limits etc If the problem persists after checking the above you can get technical support by dialing 1 507 492 5300 7 a m to 7 p m Central Standard Time An applications engineer will discuss your application with you Please have the following information available when calling e Complete model number e Serial Number e All configuration information e User s Manual The Watlow Series 142 is warranted to be free of defects in material and workmanship for 36 months after delivery to the fi
7. 265 F 616 575 F 302 C 633 538 C 1000 F ANSI Type K 716 50 C 122 F 673 648 C 1198 F 649 982 C 1800 F 711 52 C 125 F 637 649 C 1200 F 650 1010 C 1850 F 125 125 C 257 F 638 677 C 1250 F 651 1038 C 1900 F 619 149 C 300 F 639 704 C 1300 F 652 1066 C 1950 F 667 238 C 460 F 640 732 C 1350 F 692 1093 C 2000 F 671 288 C 550 F 687 750 C 1382 F 654 1121 C 2050 F 695 300 C 572 F 717 399 C 750 F 655 1149 C 2100 F 690 315 C 600 F 641 760 C 1400 F 656 1177 C 2150 F 674 700 C 700 F 642 788 C 1450 F 657 1204 C 2200 F 677 420 C 788 F 643 816 C 1500 F 658 1232 C 2250 F 629 427 C 800 F 644 843 C 1550 F 659 1260 C 2300 F 691 468 C 875 F 645 871 C 1600 F 660 1288 C 2350 F 634 565 C 1050 F 646 899 C 1650 F 6614 1316 C 2400 F 635 593 C 1100 F 647 927 C 1700 F 6624 1343 C 2450 F 636 621 C 1150 F 648 954 C 1750 F 663 1371 C 2500 F ANSI Type T 708 20 C 4 F 694 135 C 275 F 705 200 to 350 C 328 to 662 F 712 175 347 F 680 16 C 60 F 713 200 C 392 F 714 79C 175 F 710 250 C 482 F Line Voltage Power 1 120V 2 208 240V Control Operation 2 High Limit Control Manual reset on power loss and overtemperature 3 High Limit Control Auto reset on power loss manual reset on
8. 7 avec A1 1998 Mat riel lectrique destin a I talonnage au contr le et a l utilisation en laboratoire Exigences CEM Immunit indus trielle Emissions de cat gorie A EN 61000 4 2 1996 Avec A1 1998 Immunit aux d charges lectrostatiques EN 61000 4 3 1997 Immunit aux champs de radiation EN 61000 4 4 1995 Immunit contre les surtensions lectriques rapides Rafale EN 61000 4 5 1995 avec A1 1996 Immunit contre les surtensions EN 61000 4 6 1996 Immunit conduite EN 61000 4 11 1994 Immunit contre les carts de tension interruptions courtes et variations de tension EN 61000 3 2 1995 avec A1 3 1999 Emissions de courant harmoniques EN 61000 3 3 1995 avec A1 1998 Fluctuations et vacillements de tension Directive 73 23 CEE sur les basses tensions EN 60730 1 1993 Commandes lectriques automatiques usage domes tique et similaire Partie 1 Exigences g n rales EN 60730 2 9 1995 Commandes lectriques automatiques a usage domestique et similaire Partie 2 Exigences particuli res Section 2 9 Commandes de d tec tion de la temp rature 2210 Erklart dass das folgende Produkt Deutsch Bezeichnung Serie 142 Modell Nummern 142A 2 oder 3 600 bis 999 1 oder 2 1 2 3 oder 4 Beliebige zwei Ziffern oder Buchstaben Temperaturregler Installationskategorie Il Verschmutzungsgrad 2 Klassifikation Nennspannung 120 oder 208 240 V ac Nennfrequenz 50 oder
9. Series 142 User s Manual 1424 3600 1409 KM Safety High Limit or On Off Heat Controller C TOTAL CUSTOMER SATISFACTION 3 YearWarranty Vu WATLOW 1241 Bundy Boulevard P O Box 5580 Winona Minnesota USA 55987 5580 Phone 1 507 454 5300 Fax 1 507 452 4507 Internet http www watlow com 0600 0023 0000 Rev E March 2002 Supersedes 0600 0023 0000 Rev D 5 00 Made in the U S A General Description The Watlow Series 142 Safety Limit is a compact environmentally protected safety limit or temperature controller The limit has a single thermocouple input and is available in several common ranges The Series 142 Safety Limit has a single mechanical relay output and operates as a high limit latching control with manual and or auto power reset Fixed set points are available The Series 142 Safety Limit controller is ideally suited for limit applications requiring tamper proof opera tion agency approvals and immunity to hostile environ ments e The factory fixed set point cannot be altered by operator action or neglect e Agency approvals ensure compliance with recognized standards e Epoxy potting makes the Series 142 resistant to envi ronments with vibration or humid corrosive conditions Compact size and sub panel mounting make the Series 142 readily adaptable to many applications Its single factory fixed set point thermocouple input and Form C 3 amp electromechanical relay out
10. V or 3A 30V dc Form C with RC suppression on on off temperature controller version Off state output impedance is 20kQ with RC suppression Output Relay Status Upon Power Restoration Assuming process temperature is not above set point e Auto reset Output relay automatically re energizes e Manual reset Manual reset is required to re energize output relay Line Voltage Power e 120V 10 108 132V 50 60Hz 5 e 208 240V 10 187 264V 50 60Hz 5 e Power consumption ANA maximum Operating Environment e 0 to 65 C 32 to 149 F e Oto 90 RH non condensing Storage Temperature e 40 to 85 C 40 to 185 F Terminals e 1A inch quick connect lugs spade appliance Dimensions Controller Length 102mm 4 in e Width 70mm 2 8 in e Height 103mm 4 05 in e Controller Weight 0 36kg 0 79 Ib Shipping Weight 0 57kg 1 25 Ibs Set Point Assembly Dial Scale 76mm 3 in sq e Pot Depth Behind 25mm 1 0 in e Knob Depth in Front 31mm 1 2 in Lead Length 610mm 24 in e Weight 0 09kg 0 2 Ib 1Electromechanical relays are warranted for 100 000 closures only UL is a registered trademark of Underwriter s Laboratories Inc Note Specifications subject to change without notice Watlow Series 142 User s Manual 5 Ordering Information 2071 To order complete the code number to the right with the information below Series 142 Temperature safety limit limit latchin
11. ed panel location 2 Mount the unit with two 6 32 screws 6mm 0 25 in hex nut and 6 internal tooth lock washer 3 Use the correct thermocouple type per the model num ber on the unit sticker See the side of the case e Use correct thermocouple polarity Red is negative e Insulate the thermocouple mounting from the mount ing surface to prevent heat migration input errors e Thermocouple leads should be twisted pair wire and routed separately from any other lines e In electrically noisy environments heavy switching contactors motors solenoids etc use shielded ther mocouple lead wire with the shield connected at the sensor end only e Use a separate thermocouple to maintain the limit function of this controller do not parallel thermocou ple input from the primary controller 4 All wiring and fusing must conform to the National Electric Code NEC NFPA70 and any other locally applicable codes 5 Fuse the independent load voltage on the L1 hot side and connect it to the common C side of the relay NOTE For applications where the CE mark is required all quick connect and spade terminals must be pre insulated to meet IEC 730 specifications Units With Remote Setpot Assembly 1 Drill two 51mm 2 0 in diameter holes in the desired remote setpot assembly location See Figure 2b 2 Using the dial scale as a location template center and mark all four mounting holes on the dial scale with a center punch
12. g 3A relay environmentally sealed controller or basic on off temperature controller Output Type 142A A Electromechanical relay Form C 3A with RC suppression on on off temperature controller without contact suppression on limit controller L Set Point 2 Remote Adjustable 3 Fixed See below for available factory fixed set points Input Thermocouple ANSI Type E 669 110 C 230 F 679 185 C 365 F 682 302 C 575 F 685 129 C 265 F 684 232 C 450 F 664 566 C 1050 F 670 150 C 302 F 675 260 C 500 F 668 155 C 311 F 678 296 C 565 F ANSI Type J Swe a ee E Oe 626 i to ne 605 325 F 163 C 693 343 C 650 F 718 16 C 61 F 606 350 F 177 C 620 357 C 675 F 653 46 C 115 F 707 360 F 182 C 621 371 C Cor 666 63 C 145 F 607 375 F 191 C 622 385 C Get 686 65 C 149 F 608 400 F 204 C 623 399C Cart 609 68 C sen 699 425 F 218 C 624 413 C 775 F 681 79C 175 F 689 444 F 229 C 625 427 C 800 F 672 85 C 185 F 704 465 F 240 C 627 454 C 850 F 600 93 C 200 F 698 450 F 232 C 628 468 C 875 F 688 1020 215 F 612 475 F 246 C 696 482 C 900 F 601 107 C 225 F 613 500 F 260 C 630 496 C 925 F 719 110 C 230 F 614 525 F 274 C 631 510 C Gert 602 121 C 250 F 615 550 F 288 C 632 524 C 975 F 715 129C
13. naci n Serie 142 N meros de modelo 142A 2 o 3 600 a 999 1 o 2 1 2 30 4 Cualesquiera dos letras o n meros Control de temperatura Categoria de instalaci n ll Grado de contaminaci n 2 Tensi n nominal 120 0 208 240 V CA Frecuencia nominal 50 o 60 Hz Consumo nominal de energia 6 VA maximo Espanol Clasificaci n Cumple con los requisitos esenciales de las siguientes Directrices de la Union Europea mediante el uso de las normas aplicables que se muestran a continuaci n para indicar su conformidad 89 336 EEC Directriz de compatibilidad electromagn tica EN 61326 1997 CON A1 1998 Equipo el ctrico para medici n control y uso en laboratorio Requisitos EMC Inmunidad industrial Emisiones Clase A EN 61000 4 2 1996 con A1 1988 Inmunidad a descarga electrostatica EN 61000 4 3 1997 Inmunidad a campo radiado EN 61000 4 4 1995 Inmunidad a incremento repentino rapidas fluctuaciones el ctricas transitorias EN 61000 4 5 1995 con A1 1996 Inmunidad a picos de voltaje o corriente EN 61000 4 6 1996 Inmunidad por conducci n EN 61000 4 11 1994 Inmunidad a caidas de voltaje variaciones y peque as interrupciones de voltaje EN 61000 3 2 1995 con A1 3 1999 Emisiones de corriente arm nica EN 61000 3 3 1995 con A1 1998 Fluctuaciones de voltaje y centelleo 73 23 EEC Directiva de Baja Tension EN 60730 1 1993 Controles el ctricos automaticos para electrodom sticos y aparatos de us
14. nual 3 System Wiring Example L2 L1 Control Power Fuse Ground Indicator turns on when limit trips High Limit Series 142 Mechanical 142A 3___ 1200 Contactor Safety Limit Control 988A 2BA0 0000 Rear View L2 Thermo couple S Process Sensor Momentary Switch Manual Reset for Limit Control Limit Sensor Figure 4 System wiring example WARNING Install high or low temperature limit control protection in sys tems where an overtemperature fault condition could present a fire hazard or other hazard Failure to install temperature limit control protection where a potential hazard exists could result in damage to equipment and property and injury or death to personnel CAUTION Watlow mercury relay loads must have a unity power factor For RESISTIVE LOADS ONLY 4 User s Manual Watlow Series 142 Specifications 2072 Limit Control Mode e High limit control e Latched manual reset with 1 7 C 3 F hysteresis Can only be reset when process temperature drops below limit set point Terminals are provided for remote reset in the event of an overtemperature condition Reset switch supplied by user On off Temperature Control Mode Off when process temperature exceeds factory fixed or remote adjustable set point e On when process temperature is less than factory fixed or remote adjustable set point e Hysteresis switching
15. o similar Parte 1 Requerimientos generales EN 60730 2 9 1995 Controles el ctricos autom ticos para electrodom sticos y aparatos de uso similar Parte 2 Requerimientos particulares Secci n 2 9 Controles para detecci n de temperatura Jim Boigenzahn Winona Minnesota USA Name of Authorized Representative Place of Issue December 2001 Date of Issue General Manager Title of Ao Representative i Signature of Author gd Representative Ki V Watlow Series 142 Users Manual 7 automatic power reset A feature in latching limit controllers that does not recognize power outage as a limit condition When power is restored the output is re ener gized automatically as long as the temperature is within limits electrical noise immunity Ability of a temperature control to operate normally in the presence of electrical noise interference fixed set point Temperature set point is preset at the factory It cannot be readjusted in the field latched output Limit control output latches in de energized condition when overtemperature condition occurs and cannot be reset unless temperature drops below set point limit or limit controller A highly reliable discrete safety device redundant to the primary controller that monitors and limits the temperature of the process or a point in the process When temperature exceeds or falls below the limit set point the limit controller interrupts power through
16. overtemperature 4 Temperature Control on off heat 00 1 Electromechanical relays war ranted for 100 000 closures only 2 User selectable range Consult factory for details Setpot required sold separately 3 CSAus Gas Appliance Thermostat approved 4 Not within calibration toler ance range per ANSI circular MC96 1 Note User documentation may be available in French German Spanish Italian and Dutch as well as English Check Watlow s website www watlow com for availability Specify language at time of order 6 User s Manual Watlow Series 142 Declaration of Conformity Series 142 WATLOW Winona Inc 1241 Bundy Boulevard Winona Minnesota 55987 USA CE Declares that the following product Designation Series 142 Model Numbers 142A 2 or 3 600 to 999 1 or 2 1 2 3 or 4 any two letters or numbers Temperature Limit Control Installation Category Il Pollution degree II Rated Voltage 120 or 208 240 V ac Rated Frequency 50 or 60 Hz Rated Power Consumption 6 VA maximum English Classification Meets the essential requirements of the following European Union Directives by using the relevant standards show below to indicate compliance 89 336 EEC Electromagnetic Compatibility Directive EN 61326 1997 With A1 1998 Electrical equipment for measurement control and laboratory use EMC requirements Industrial Immunity Class A Emissions EN 61000 4 2 1996 With
17. put provides simplicity and reliability for many applications Sensor break protection ensures fail safe process shut down upon input failure Safety Information We use note caution and warning symbols through out this manual to draw your attention to important oper ational and safety information A NOTE marks a short message to alert you to an important detail A CAUTION safety alert appears with information that is important for protecting your equipment and per formance Be especially careful to read and follow all cautions that apply to your application A WARNING safety alert appears with information that is important for protecting you others and equipment from damage Pay very close attention to all warnings that apply to your application The safety alert symbol A an exclamation point in a triangle precedes a general CAUTION or WARNING statement The electrical hazard symbol A a lightning bolt in a triangle precedes an electric shock hazard CAUTION or WARNING safety statement Installation 70mm Somm S 35mm 2 76 in Wiesen 1 38 hj I 1 13 in 4 4 D 103mm 4 05 in 89mm 3 50 in Y Ba Use a 6mm 0 25 in hex nut 1 Two 5mm 0 187 in dia for proper clearance mounting holes Figure 2a Series 142 dimensions Installation Procedure 1 Drill two 5mm 0 187 in diameter holes in the desir
18. rst purchaser for use providing that the units have not been misapplied Since Watlow has no con trol over their use and sometimes misuse we cannot guarantee against failure Watlow s obligations hereun der at Watlow s option are limited to replacement repair or refund of purchase price and parts which upon exami nation prove to be defective within the warranty period specified This warranty does not apply to damage result ing from transportation alteration misuse or abuse Your Feedback Your comments or suggestions on this manual are welcome Please send them to Technical Writer Watlow Controls 1241 Bundy Boulevard P O Box 5580 Winona Minnesota 55987 5580 phone 1 507 454 5300 fax 1 507 452 4507 The Series 142 User s Manual is copy righted by Watlow Winona Inc 2001 with all rights reserved 2209 8 User s Manual Watlow Series 142
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