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 |