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ATC990 Process Controller

Process Controllers

The ATC990 Process Controller provides a cost-effective way to control a single process parameter, such as for a plastics extruder. Designed to improve user efficiency many features are integrated to reduce commissioning time, simplify operation and minimize maintenance downtime. Reliably auto-tune and alarm on strain gauge, DC voltage, temperature or current inputs. The ATC990 can also control differential pressure when an optional secondary strain gauge input is used. 

  • Auto-tuning control in a discrete 1/4 DIN package
  • Graphical/text LCD Display with color change LED backlight on alarm (red/green)
  • Graphical trend view of process, alarms & events as standard
  • Easy to use Setup Wizard
  • Single loop control
  • Display and control of differential pressure is available
  • USB port option for access to configuration and log files
  • Data logging option logs process values, set points and alarms to .csv file for use with spreadsheets
  • Modbus RS-485 and Modbus TCP Ethernet supported
  • BlueControl configuration and commissioning software option


Address List

This document contains the address list and error code definitions for MODBUS communications protocol

ATC990 & UPR900 Expanded User Guide

Dynisco ATC Legacy Equipment Cross Reference

This document is a cross-reference tool that can be used for the ATC legacy equipment

Dynisco ATC Series- Wiring Conversion List

Dynisco Product Portfolio

From breakthrough technology in the industry’s most complete line of sensors to renowned quality and performance in indicators, controls, and analytical instruments Dynisco has demonstrated the skill, experience and know-how that not only deliver the right solution for your unique application, but also provide unparalleled customer support.


ATC Series Wiring Conversion

The attached document outlines the terminals and functions of the previous models (ATC880/770) and cross references them with our current controller (ATC990). We hope that this resource tool makes instrument replacement easier, and reduces your down time from production.

Dynisco's ATC990 | UPR900 Applications and Setup

ATC990 Process Controller and UPR900 Process Indicator Technical Notes, Applications and Setup


ATC990 Datasheet


Dynisco Online Shop Overview

Dynisco’s Online Shop is where you can have access to ordering all Dynisco parts from Polymer Testing Equipment to Sensors to accessories- all to optimize your application.

Tech Notes

The Importance of Monitoring Extrusion Stability

It has long been known that pressure instability for polymer melt entering the die usually results directly in ouput variation. Instrumentation used in these early studies was too delicate and expensive to be practical for routine commercial use. An excellent article written by B. H. Maddock, covering some of his early studies is title “Measurement and Analysis of Extruder Stability.”

Have A Question? Ask a Dynisco expert for more information.

  • Dynisco

    38 Forge Parkway,
    Franklin MA 02038

    +1 508 541 9400  

  • Dynisco Europe GmbH

    Pfaffenstr. 21, 74078,
    Heilbronn, Germany

    +49 7131 297 0

  • Dynisco-Viatran Instrument Sdn Bhd

    Lot 3615, Jalan SM 6/8
    32040 Seri Manjung, Perak, Malaysia     

    +605 6884014