• All configuration information
• User’s Manual 
• Factory Page
Return Material Authorization (RMA)
1.  Call Watlow Customer Service, (507) 454-5300, 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 unrepairable, you will receive a letter 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
®
 PM PID Controller User’s Manual is 
copyrighted by Watlow Winona, Inc., © July 2009 with all 
rights reserved. 
EZ-ZONE
®
 PM is covered by U.S. Patent No. 6,005,577 
and Patents Pending