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6 ■ User’s Manual Watlow Series 142
(2071)
To order, complete the code number
to the right with the information below:
1 4 2 A - _ _ _ _ - _ _ 0 0
Series 142 = Temperature safety limit,
limit, latching 3A relay, environmentally sealed
controller, or basic on-off temperature controller
Output Type
A = Electromechanical relay
1
, Form C, 3A, with RC
suppression on on-off temperature controller, without
contact suppression on limit controller
Set Point
2 = Remote/Adjustable
2
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)
Ordering Information
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.
ANSI Type J
706 = 0 to 315°C
(32 to 600°F)
626 = 10°C (50°F)
718 = 16°C (61°F)
653 = 46°C (115°F)
666 = 63°C (145°F)
686 = 65°C (149°F)
609
3
=68°C (155°F)
681 = 79°C (175°F)
672 = 85°C (185°F)
600
3
=93°C (200°F)
688 = 102°C (215°F)
601
3
= 107°C (225°F)
719 = 110°C (230°F)
602
3
= 121°C (250°F)
715 = 129°C (265°F)
603
3
= 275°F (135°C)
604
3
= 300°F (149°C)
605
3
= 325°F (163°C)
606
3
= 350°F (177°C)
707 = 360°F (182°C)
607
3
= 375°F (191°C)
608
3
= 400°F (204°C)
699
3
= 425°F 218°C()
689 = 444°F (229°C)
704 = 465°F (240°C)
698
3
= 450°F (232°C)
612
3
= 475°F (246°C)
613
3
= 500°F (260°C)
614 = 525°F (274°C)
615 = 550°F (288°C)
616 = 575°F (302°C)
617 = 316°C (600°F)
618 = 329°C (625°F)
693 = 343°C (650°F)
620 = 357°C (675°F)
621 = 371°C (700°F)
622 = 385°C (725°F)
623 = 399°C (750°F)
624 = 413°C (775°F)
625 = 427°C (800°F)
627 = 454°C (850°F)
628 = 468°C (875°F)
696 = 482°C (900°F)
630 = 496°C (925°F)
631 = 510°C (950°F)
632 = 524°C (975°F)
633 = 538°C (1000°F)
ANSI Type K
716 = 50°C (122°F)
711 = 52°C (125°F)
125 = 125°C (257°F)
619 = 149°C (300°F)
667 = 238°C (460°F)
671 = 288°C (550°F)
695 = 300°C (572°F)
690 = 315°C (600°F)
674 = 700°C (700°F)
677 = 420°C (788°F)
629 = 427°C (800°F)
691 = 468°C (875°F)
634 = 565°C (1050°F)
635 = 593°C (1100°F)
636 = 621°C (1150°F)
673 = 648°C (1198°F)
637 = 649°C (1200°F)
638 = 677°C (1250°F)
639 = 704°C (1300°F)
640 = 732°C (1350°F)
687 = 750°C (1382°F)
717 = 399°C (750°F)
641 = 760°C (1400°F)
642 = 788°C (1450°F)
643 = 816°C (1500°F)
644 = 843°C (1550°F)
645 = 871°C (1600°F)
646 = 899°C (1650°F)
647 = 927°C (1700°F)
648 = 954°C (1750°F)
649 = 982°C (1800°F)
650 = 1010°C (1850°F)
651 = 1038°C (1900°F)
652 = 1066°C (1950°F)
692 = 1093°C (2000°F)
654 = 1121°C (2050°F)
655 = 1149°C (2100°F)
656 = 1177°C (2150°F)
657 = 1204°C (2200°F)
658 = 1232°C (2250°F)
659 = 1260°C (2300°F)
660 = 1288°C (2350°F)
661
4
= 1316°C (2400°F)
662
4
= 1343°C (2450°F)
663
4
= 1371°C (2500°F)
ANSI Type T
708 = -20°C (-4°F)
705 = -200 to 350°C (-328 to 662°F)
680 = 16°C (60°F)
714 = 79°C (175°F)
694 = 135°C (275°F)
712 = 175°C (347°F)
713 = 200°C (392°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
overtemperature
4 = Temperature Control—on-off heat