Watlow’s Closed Loop Integrated Controller Provides Long-Term Reliability

Many applications requiring a fixed temperature set point rely on a mechanical thermostat for thermal control. Thermostats have proven, however, to be inadequate for many applications due to long-term reliability issues, such as 100,000 cycle rating and poor temperature control. The SERIES EHG® thermal solution includes a compact temperature control, thermocouple sensor and power switching device integrated into the heater's power cord. The SERIES EHG temperature control and sensor reduces system costs and lasts substantially longer than a conventional thermostat solution.

The evolution of miniature microprocessor technology and Watlow switching technology fostered development of a small, versatile temperature control and thermocouple sensor that is integrated with Watlow silicone rubber heater products. This device senses the temperature via input from a thermocouple strategically placed on the heater mat. The microprocessor is programmed prior to shipment with an application specific set point. This results in quick delivery of a custom, integrated system.

Features & Benefits

Long operational life improves system reliability

Tight temperature control ensures process accuracy

Small sensor footprint fits with almost any heater and responds quickly to temperature changes

A single EHG control can be configured with multiple heaters, reducing system costs

Pre-wired, in-line control simplifies installation

Durable housing with built-in strain relief

Protects electronics and lowers the risk of mechanical damage

Manufactured with proven Watlow components

Assures a reliable performance


Description Information
Control/Limit Loops 1/0
Mounting In-line
Profiling No
Max Output 10A
Phase Configurations 1
Ambient Operating Range 0 to 70°C (32 to 158°F)
Agency Approvals UL®
TRU-TUNE®+ Adaptive Control No
Remote Limit Reset No
Warranty (Years) 2

Related Documentation

  • Agency Approvals

    Agency Approvals for Watlow Controllers

    CCC Winona Exemption Letter

  • Brochures

    Thermal Solutions for Photovoltaic Processing Equipment

  • Catalogs

    Controller Catalog (Section) - Integrated Multi-Function Controllers

    Controller Catalog (Section) - Temperature and Process Controllers

    Sensor & Controller Catalog

  • Specification Sheets

    SERIES EHG Integrated Thermal Solution

  • White Papers

    EHG SL10 Cables

    Sample EHG 16-bit Modbus RTU Packet

    Wiring the EHG SL10 for EIA-485 Communications

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Quality Certificates

ISO 90012008 Certificate - Controllers Winona