Watlow EZ Zone Series RM

EZ Zone RM Multi-loop Control


Starting at $108.00

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The EZ-ZONE®RM controller family simplifies thermal system management. The EZ-ZONE RM controller family is comprised of six module types: an integrated on-off or PI control, monitoring and over/under temperature limit module, a high-density on-off or PID control module, a high-density limit only module, an input/output (I/O) expansion module, a high-density monitor/scanner module and a data logging and field communications access module. A system is configured by connecting any combination of module types to address specific application needs. The EZ-ZONE RM is extremely flexible and scalable allowing mixing and matching of I/O to configure 1 to 152 control loops and up to 256 monitor points.

Optional integrated controller functions can be combined or ordered in different quantities:

•PID control loops

•Over/under temperature limit control loops

•10 and 15 ampere power output/heater driver options

•On-board data logging

•Current measurement input

•Sequencer start up and control function

•Programmable timer and counter functions

•Programmable math and logic options

•Multiple communication protocols options

•Mobile configuration with removable secure digital

(SD) flash card

Benefits of using an integrated controller solution:

•Reduces wiring time and termination complexity

compared to connecting multiple discrete products

•Improves system reliability

•Reduces termination and installation cost

•Eliminates compatibility issues often encountered with using various discrete components and brands

•Reduces troubleshooting time and downtime costs because the system can specifically identify any problems with a sensor, controller, solid state relay (SSR) power output or heater load

•Complete thermal solution saves engineering time and labor costs while shortening project schedules

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Features and Benefits

•Multiple inputs; from 1 to 152 PID loops of control or monitor up to 256 analog inputs

•Mix and match I/O to fit any application; from 1 input with 2 outputs to 152 analog inputs with 152 outputs, or monitor up to as many as 256 analog inputs all in one system

•Reduces cost because only required loops are purchased

•Allows a common controller platform across many design applications as both loops and outputs can be ordered in single increments

•Advanced PID control algorithm

•Offers TRU-TUNE®+ adaptive control to provide tighter control for demanding applications

•Enables auto-tune for fast, efficient start-up Communication capabilities

•Provides a range of protocol options including universal serial bus (USB) device port, Modbus®RTU, EtherNet/IP™, Modbus®TCP, DeviceNet™ and PROFIBUS

•USB Port

•Provides data log retrieval

SPLIT-RAIL control

•Allows modules mounted in separate high-voltage and low-voltage cabinets to function as an integrated system

•Minimizes the length and cost of wire runs and improves system reliability by locating inputs closer to sensors and outputs closer to loads


•Reduces time and configuration complexity by

automatically building a new module with the same

parameter settings as the replaced module


•Prevents unplanned process shutdowns and product loss

by switching to a backup sensor if the primary sensor fails

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RM Series Broschure

RMC Manual