Watlow Series 104 - Manual (Page 6)

Connect per Input Wiring, page 3.
Remove power to the controller and the controller from
the system. Apply power to the system with the con-
troller removed. If the load turns off, return the con-
troller to the factory. If the load remains on, there are
other problems in the system that must be resolved.
Contact the factory.
The polarity is reversed on the
thermocouple.
A faulty unit.
The load will not turn off.
Repair or replace.
Check the fuses, circuit breakers, load and wiring.
Check the ac input connections. If not present,
connect per Power Wiring, page 2.
An open sensor.
The load circuit is open.
The ac input is not connected or
is connected improperly.
The load will not turn on.
Action Probable Cause Problem
Troubleshooting
6 ■ Watlow Series 104 User’s Manual
(1924) 104 _ - _ _ _ _ - _ 000
Output Type
C = Switched dc, non-isolated
E = Electromechanical relay, 8A,
Form C
K = Solid-state relay, Form A, 0.5A
Line Voltage
1 = 120V~
2 = 230 to 240~
Input and Range
Type J
601 = 32 to 600°F (0 to 315°C)
602 = 32 to 1382°F (0 to 750°C)
609 = 50 to 150°F (10 to 66°C)
616 = 100 to 300°F (37 to 148°C)
617 = 32 to 600°F (0 to 315°C)
Type K
603 = 32 to 2282°F (0 to 1250°C)
611 = 32 to 1112°F (0 to 600°C)
612 = 32 to 482°F (0 to 250°C)
Type R
608 = 32 to 2732°F (0 to 1500°C)
Type T
604 = 150 to 662°F (66 to 350°C)
610 = -125 to 425°F (-87 to 218°C)
621 = 0 to 100°F (-17 to 37°C)
Pt 2
606 = 32 to 2543°F (0 to 1395°C)
RTD (100
Ω
)
101 = -100 to 1112°F (-73 to 600°C)
103 = 32 to 482°F (0 to 250°C)
Control Mode
1 = Heat
2 = Cool
NOTE: Electromechanical relays are warranted for 100,000 closures only.
Solid state switching devices recommended for applications requiring
extended service life.
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.
The Series 104 is warranted to be free of defects in
material and workmanship for 36 months after delivery to
the first purchaser for use, providing that the unit has not
been misapplied. Since Watlow has no control over its use or
misuse, we cannot guarantee against failure. Watlow’s
obligations hereunder, at Watlow’s option, are limited to
replacement or refund of purchase price of a unit which
upon examination proves to be defective within the
warranty period. This warranty does not apply to damage
resulting from transportation, alteration, misuse or abuse.
• Call or fax Customer Service for a Return Material
Authorization (RMA) number before returning a product.
• Put the RMA number on the shipping label, and also a
description of the problem.
• A 20% of net price restocking charge applies to all
standard units returned to stock.
Contact
• Phone: +1 (507) 454-5300
• Fax: +1 (507) 452-4507
If you encounter a problem with your Watlow controller,
verify that your wiring is correct for your specific model
number. If the problem persists, an Application Engineer
can discuss your application with you.
Before calling, please have the complete model number
and user’s manual available. You can get technical support
by dialing +1 (507) 494-5656, 7 a.m. to 7 p.m. Central
Standard Time. The Series 104 User’s Manual is
copyrighted by Watlow Winona, Inc., © August 2000, with
all rights reserved. (1921)
Technical Support
Returns
Warranty Ordering Information