What Is SpecView?

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streamlined HMI, or human machine interface, for your Watlow heaters and industrial controllers, learn more about this easy to use software today. Find all the answers to your essential questions and find out how Hi-Watt can assist you in implementing this state-of-the-art HMI in your facility.

SpecView allows you to easily operate a range of power controllers for diverse industrial applications. A wide range of industries and controllers types successfully use this Supervisory Control and Data Acquisition (SCADA) software. Here are a few patented Watlow controllers that are compatible with this particular software:

  • EZ-ZONE controllers
  • ASPYRE power controllers
  • F4T with INTUITION process controllers
  • Third-party controllers and other products

A major factor in choosing SpecView is the integrated nature of this software. Because Watlow produces the software and hardware for your industrial controllers, this software automatically communicates efficiently with your controller, which reduces installation and programming time.

Bar code reading, process adjusting, machine troubleshooting and data logging are just a few of the popular capabilities of this easy to use software from Watlow. Depending on your industrial need, you can easily adjust the screens, data logging and other features to fit your particular equipment and operation.

How Do Limit Controllers Work?

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Unlike a proportional-integral-derivative controller (PID), limit controllers do not compare and regulate process variables, including temperature, level, flow, position, and current. Instead, these devices are considered on/off controllers that stop operations when process or machine temperatures are out of range. Watlow’s limit controllers can be used as a backup to other controllers when safety concerns may be present, including temperatures that are too high or too low.  For machinery, manufacturer’s typically preset the upper and lower temperature setpoint values. For process control, the programmable logic controller (PLC) programmer will input the upper and limits into the human-machine interface (HMI) or PLC. Whenever a preset condition is violated, the limit controller forces a system shutdown or can trigger another process, such as a cooling phase.

How Do Temperature Limit Controllers Work?

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You need to make sure you carefully control the temperature throughout all of your equipment. A temperature controller is a specific instrument that has been designed to control the temperature between certain set points and a measured temperature. Usually, the temperature controller takes input from a temperature sensor. The sensor is usually connected to a fan or heater. Then, the temperature control system will use a controller to compare the actual temperature to the desire to control temperature. Then, the control system will help you manage the temperature and your devices to make sure it is appropriate for the situation.

What is a thermocouple?

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Watlow Thermocouples

A thermocouple is a temperature-measuring device consisting of two dissimilar conductors that contact each other at one or more spots, where a temperature differential is experienced by the different conductors (or semiconductors). It produces a voltage when the temperature of one of the spots differs from the reference temperature at other parts of the circuit.

Thermocouples or thermocouple sensors are a widely used type of industrial temperature sensors for measurement and control, and can also convert a temperature gradient into electricity. Commercial thermocouples are inexpensive, interchangeable, are supplied with standard connectors, and can measure a wide range of temperatures. If you are looking for thermocouples such as the j type thermocouple, the k type thermocouple or if you need thermocouple wire Hi-Watt, Inc. can help.

Thermocouples are classified by calibration type because they have varying electromotive force (EMF) versus temperature curves. Some generate considerably more voltage at lower temperatures, while others do not begin to develop a significant voltage until subjected to high temperatures.

Also, calibration types are designed to deliver as close to a straight line voltage curve inside their temperature application range as possible. This makes it easier for an instrument or temperature controller to correctly correlate the received voltage to a particular temperature.

Hi-Watt Inc. carries Watlow Thermocouples, Tempco Thermocouples, Pyromation Explosion-Proof Thermocouples and more.

Why Use Thermocouples?

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Paper producers, pharmaceutical manufacturers, and mining operations rely on thermocouple sensors; so do many other industries that need to check temperatures regularly. Their widespread use is because they are inexpensive. Resistance temperature detectors perform similarly to thermocouples but generally cost twice as much. Also, thermocouples do not require power supplies, batteries, or specialized connectors, driving down their installation costs.

Thermocouples’ ability to withstand extreme temperatures also explains their popularity. These devices can easily measure substances that are hotter than 1,202 degrees Fahrenheit, which is magnesium’s melting point. They function well in cold environments, too, making them ideal for pharmaceutical manufacturing and information technology applications.

Finally, we recommend thermocouples to our customers because they last a long time. Their sheaths offer protection from chemicals and other corrosive materials, and we choose their wires’ material carefully to maximize their longevity.