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Limits  

Watlow single- and multi-loop limits provide cost-effective solutions for single- and multi-channel, temperature monitoring. Limites monitor the process value where thermal system protection is needed, closing a contact output for normal operation and opening that contact to shut down the process or equipment when the value is outside the safe range.

Various configurations offer user-selectable or fixed-configuration sensor options including thermocouple, process, RTD and thermal switch inputs as well as user-settable or fixed limit values. Models with displays have user-selectable temperature units. Other features include sensor break protection, industry standard I/O options and UL® and CSA approval. EZ-ZONE models are RoHS compliant. Limits have FM approval for performance in safety limit applications. Watlow limits are designed and manufactured to withstand harsh industrial environments and come with a three-year warranty.

Product Max Limit Loops Max Monitor Channels Mounting Agency Approvals Communication Protocols
EZ-ZONE® RM Limit 64 18 DIN-rail UL® , CSA, CE, RoHS, W.E.E.E. FM, SEMI F47-0200 Standard Bus, EtherNet/IP®, DeviceNet, Profibus, Modbus® TCP, Modbus® RTU
EZ-ZONE® PM Limit 1 2 DIN-panel UL®, CSA, CE, RoHS, W.E.E.E., FM, SEMI F47-0200 Standard Bus, EtherNet/IP®, DeviceNet, Profibus, Modbus® TCP, Modbus® RTU
EZ-ZONE® PM Express Limit 1 1 DIN-panel UL®, CSA, CE, RoHS, W.E.E.E., FM, SEMI F47-0200 Standard Bus
SERIES LV 1 1 DIN-rail, DIN-panel UL®, CSA, CE, ANSI Z21.23, RoHS, W.E.E.E., FM N/A
SERIES LF 1 1 DIN-rail, DIN-panel UL®, CSA, CE, ANSI Z21.23, RoHS, W.E.E.E., FM N/A
TLM-8 1 8 DIN-panel UL®, C-UL®, CE, FM N/A
 

Related Product Demo

1 | EZ-ZONE RM

EZ-ZONE RM

Watlow's EZ-ZONE RM integrated controller has a range of 1 to 16 modules controlling 1 to 64 loops. View this video to see how the EZ-ZONE RM can be used as a temperature controller, limit controller or hybrid controller.

 

Related Literature and Downloads

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Title Type
EZ-ZONE Configurator Software Version 3.17 BETA  Software and Demos (.exe)
EZ-ZONE RM Rail Mount Controller  Specification Sheets (.pdf)
EZ-ZONE PM Express User Manual (Limit) Revision C  User Manuals (.pdf)
EZ-ZONE RM Limit Module Rev A, July 2010  User Manuals (.pdf)
EZ-ZONE PM Panel Mount Controller  Specification Sheets (.pdf)
EZ-ZONE Configurator Software Download  Software and Demos (.cfm)
Agency Approvals for Watlow Controllers  Agency Approvals (.pdf)
EZ-ZONE PM Limit User Manual Rev H  User Manuals (.pdf)
ISO 9001:2008 Certificate - Controllers  Quality Certificates (nona)
Basic Temperature and Limit Controllers  Specification Sheets (.pdf)
Series L Temperature Limit - Rev. G 2/2008  User Manuals (.pdf)
Use of Temperature Safety Limits in the Semiconductor Industry  White Papers (.pdf)
TLM-8 User's Guide, Rev D October 2007  User Manuals (.pdf)
TLM-8 Thermal Limit Monitor  Specification Sheets (.pdf)
SERIES 146 Retrofit Guide and User's Manual  User Manuals (.pdf)

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