Home Login Contact Us Cart Logout
Series SD Temperature Controllers - Retrofit Guide
The Watlow Series SD has been discontinued and is no longer available.
To Upgrade your Watlow Series SD, use the retrofit application below
The Watlow SERIES SD family of controllers utilized advanced technology to provide the value, benefits and accuracy you've come to expect from Watlow. The features and performance offered by SERIES SD controllers made them ideally suited for a broad range of applications in temperature and process control.

The SERIES SD single channel controllers included a universal sensor input with up to three outputs that can be programmed for heat or cool temperature control, or to operate as process or deviation alarms. Programming inverse scaling was also simplified with the user-friendly set-up menu, providing additional value without additional cost.

Advanced features of SERIES SD controllers included EIA 485 ModbusTM serial communications, Watlow's INFOSENSE sensor technology, infrared remote communications operation, Watlow's patented User Definable Menu System and a "Save and Restore" feature that allowed the restoration of either factory or user-defined settings. They were available in 1/32, 1/16, 1/8 and 1/4, DIN panel mount sizes.

Watlow's SERIES SD family was backed by an industry leading three-year warranty from Watlow Winona. The SERIES SD controllers were UL and C-UL listed, CSA and CE certified and included the NEMA 4X (IP65) seal. The controllers were also available in FM limit approved versions.

Download Watlow Series SD Control Brochure (pdf 344K)

DDownload Watlow Series SD31 Control Brochure (pdf 3.1MB)

Download Watlow Series SD Limit User's Manual (pdf 1.0MB)
Watlow Series SD Retrofit Application
The Watlow Series SD has been replaced by the Watlow EZ-Zone PM Control Series. To find the Watlow recommended replacement for your Watlow Series SD Controller, please enter the part number of your existing Watlow SD using the pull down menus below, then click on the submit button below, the replacement part number and price will be shown on the next page. NOTE: The new EZ-Zone PM will require re-wiring and re-programming according to the installation instructions. In some cases output types and locations may be different. For more information download the Watlow EZ-Zone PM spec sheet.

- -


This page last modified on 2/2/2021

Untitled Page
About WCPE/Contact Info | Terms & Conditions | Business Hours M-F 8-4PST
For Packaging Equipment & Bag Sealers see our WCPSealers.com website!