Watlow Controller

Watlow Controller

Dependable detection begins with a Watlow controller. Watlow’s popular line of EZ-Zone PM controllers can be installed easily for controlled loop feedback. These popular Watlow controllers are available as top-performing PID models, over/under limit controllers or integrated devices. An optional high amperage power controller can also be included in the package, which requires less panel space and is simple to use. PID stands for proportional-integral-derivative and is a common standard of process control. Integrated PID and limit controllers are associated with lower ownership, and installation costs installers also appreciate the reductions in wiring time and termination complexity that streamlined control packages can offer. Watlow single-loop controllers with microprocessor technology can provide extensive communication capabilities and the latest in network connectivity that commercial control systems require. Using multifunctional, modular devices allows owners to adapt to the dynamic workplace with nominal time and financial investment. Control loop and limit additions can be incorporated individually. A full menu of Watlow features includes standard bus communications and adaptive control.

The EZ-ZONE®PM panel mount controller

Control/Limit Loops: 
Max Monitor Channels: 
1/32, 1/16, 1/8, 1/4 DIN front panel
Max Output: 
Phase Configurations: 
Ambient Operating Range: 
-18 to 65°C  (0 to 149°F)
Agency Approvals: 
UL®, CSA, CE, RoHS, W.E.E.E., FM, IP66 front seal, SEMI F47-0200, Class 1, Div. 2
Communication Protocols: 
Standard Bus, EtherNet/IP™, DeviceNet,™ Profibus DP, Modbus® TCP, Modbus® RTU
Adaptive Tuning TRU-TUNE+: 
Remote Limit Reset: 
Yes, if digital inputs are ordered
Display Height: 
0.41 in. (11 mm) to 1.60 in. (41 mm)
1.22 in. H (30.86) x 2.1 in. W (53.34 mm) x 4 in. D (101.57 mm)
Warranty (years): 

Features & Benefits:
Integrated PID and limit controller
  • Reduces wiring time and termination complexity compared with connecting discrete products
  • Decreases required panel space and lowers installation costs
  • Increases user and equipment safety for over/under temperature conditions
High amperage power control output
  • Drives 15 ampere resistive loads directly
  • Reduces component count
  • Decreases cost of ownership
Current monitoring
  • Detects heater current flow and provides alarm indication of a failed output device or heater load
Serial communication capabilities
  • Provides a wide range of protocol choices including Modbus® RTU, EtherNet/IP™, Modbus® TCP, PROFIBUS DP and DeviceNet™
  • Supports network connectivity to a PC or PLC
Dual-channel controller
  • Provides two PID controllers in one space-saving package
Enhanced control options
  • Easily handles complex process problems such as cascade, ratio, differential, square-root, motorized valve control without slidewire feedback, wet-bulb/dry-bulb, compressor control and peltier loads
Advanced PID control algorithm
  • Offers TRU-TUNE®+ adaptive control to provide tighter control for demanding applications
  • Provides auto-tune for fast, efficient startup
Configuration communications with software
  • Includes Watlow standard bus communications and EZ-ZONE configurator software
  • Saves time and improves reliability of controller setup


Watlow Temperature Controller Features

Gain greater control over challenging conditions with a Watlow temperature controller. It detects heater current flow and provides alarm indication of a failed output device or heater load. With oversight of over/under temperature conditions, Watlow panel mount controller supports user safety and equipment protection. A single loop device will capably control thermal or process equipment within a system. With an ambient operating range of -18 to 65°C and multiple agency compliance, a Watlow PID/limit controller will surpass industrial expectations. Contact us to find out more about the complete line of Watlow thermal solutions that we proudly distribute.

Watlow Temperature Controller

Watlow PM Spec Sheet (pdf)

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