Manual

Safety Information
We use note, caution and warning symbols throughout
this book to draw your attention to important operation-
al 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
performance. 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 equip-
ment from damage. Pay very close attention to all warn-
ings that apply to your application.
The safety alert symbol,
ç
(an exclamation point in
a triangle) precedes a general CAUTION or WARNING
statement.
The electrical hazard symbol,
Ó
(a lightning bolt in a
triangle) precedes an electric shock hazard CAUTION or
WARNING safety statement.
çCAUTION or WARNING
ÓElectrical Shock Hazard
CAUTION or WARNING
Warranty
The EZ-ZONE™ ST is manufactured by ISO 9001-regis-
tered processes and is backed by a three-year warranty
to the first purchaser for use, providing that the units
have not been misapplied. Since Watlow has no control
over their use, and sometimes misuse, we cannot guar-
antee against failure. Watlow’s obligations hereunder,
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. The
purchaser must use Watlow parts to maintain all listed
ratings.
Technical Assistance
If you encounter a problem with your Watlow control-
ler, review your configuration information to verify
that your selections are consistent with your applica-
tion: inputs, outputs, alarms, limits, etc. If the prob-
lem persists, you can get technical assistance from
your local Watlow representative (see back cover), by
e-mailing your questions to wintechsupport@watlow.
com or by dialing [phone] between 7 a.m.
and 5 p.m., Central Standard Time (CST). Ask for for
an Applications Engineer. Please have the following
information available when calling:
• Complete model number
• All configuration information
• User’s Manual
• Factory Page
Warranty
The EZ-ZONE
®
ST is manufactured by ISO 9001-reg-
istered processes and is backed by a three-year war-
ranty to the first purchaser for use, providing that the
units have not been misapplied. Since Watlow has no
control over their use, and sometimes misuse, we can-
not guarantee against failure. Watlow's obligations
hereunder, at Watlow's option, are limited to replace-
ment, repair or refund of purchase price, and parts
which upon examination prove to be defective within
the warranty period specified. This warranty does not
apply to damage resulting from transportation, altera-
tion, misuse or abuse.
Return Material Authorization (RMA)
1. Call Watlow Customer Service, [phone],
for a Return Material Authorization (RMA) number
before returning any item for repair. If you do not
know why the product failed, contact an Application
Engineer or Product Manager. All RMA’s require:
• Ship-to address
• Bill-to address
• Contact name
• Phone number
• Method of return shipment
• Your P.O. number
• Detailed description of the problem
• Any special instructions
• Name and phone number of person returning the
product.
2. Prior approval and an RMA number from the
Customer Service Department is required when
returning any product for credit, repair or evalua-
tion. Make sure the RMA number is on the outside of
the carton and on all paperwork returned. Ship on a
Freight Prepaid basis.
3. After we receive your return, we will examine it and
try to verify the reason for returning it.
4. In cases of manufacturing defect, we will enter
a repair order, replacement order or issue credit for
material returned. In cases of customer mis-use, we
will provide repair costs and request a purchase order
to proceed with the repair work.
5. To return products that are not defective, goods
must be be in new condition, in the original boxes and
they must be returned within 120 days of receipt. A 20
percent restocking charge is applied for all returned
stock controls and accessories.
6. If the unit is not repairable, you will receive a let-
ter of explanation. and be given the option to have the
unit returned to you at your expense or to have us
scrap the unit.
7. Watlow reserves the right to charge for no trouble
found (NTF) returns.
The EZ-ZONE
®
ST User’s Manual is copyrighted by
Watlow Electric, Inc., © January 2010 with all rights
reserved.
EZ-ZONE
®
ST is covered by U.S. Patent No. 6,005,577
and Patents Pending