Tek-Trol Controllers & Timers
Tek-Trol indicator and controller product lines are designed to provide reliable and precise monitoring and control of industrial processes. They offer a range of features, including high-visibility displays, flexible input/output options, and user-friendly interfaces, making them suitable for various applications. With robust construction and advanced technology, these devices ensure accurate measurements and timely responses, enhancing system efficiency and safety. Tek-Trol indicators and controllers are ideal for diverse industries, delivering consistent performance even in challenging environments.
Tek-Trol controllers and indicators come equipped with full-protection REFLEX dials. This technology is specifically crafted to enhance ultra-clear readability of data through the use of strong UV lights. This design also gives it a sharp readability visible from large distances. They are suitable for both individual device monitoring and automation, as part of a fully automated system, ensuring reliable measurement and control for critical processes.
FAQs
What do Tek-Trol indicators and controllers do?
Tek-Trol indicators and controllers measure key process variables and regulate equipment responses such as pumps, valves or alarms to maintain stable and efficient industrial operations.
Where are Tek-Trol indicators and controllers commonly used?
They are widely used in water and wastewater treatment, oil and gas facilities, chemical processing plants, food production systems and general industrial automation environments.
Do Tek-Trol controllers support PID control?
Yes, many Tek-Trol controllers feature advanced PID algorithms that provide smooth, accurate control with minimal overshoot, improving process stability and efficiency.
Can Tek-Trol devices integrate with SCADA and PLC systems?
Tek-Trol indicators and controllers offer analog, digital and Modbus communication options, making them compatible with modern SCADA platforms and PLC-based automation systems.
Are Tek-Trol indicators and controllers suitable for harsh environments?
Many Tek-Trol models feature rugged enclosures, high IP/NEMA ratings and robust electronics, ensuring reliable performance in demanding or corrosive industrial settings.
Analog and Digital Control Signals: The Basics
Digital Signals
Digital signals are represented in either a true or false. There is no gray area with digital signals. An example of this might be a light switch. A light switch is either on or off. Another example of this might be a motor that is running or not running. Digital signals can be generated with both AC and DC circuits with varying voltages, currents and resistance. Some practical examples of using digital signals in an industrial environment might be if a pump is running or not running or a whether a valve is open or closed.
Analog Signals
Analog signals convey information in the form of a range. A light switch might be on or off as a digital signal, but a dimmer switch would be an analog signal. It can be on or off, but it can also be somewhere in between. A practical example of using analog signals in an industrial environment would be if there is a need to measure the level of a tank; whether it's full, empty or somewhere in between. Analog signals can take many different forms with some of the more common being a 4 to 20 milliamp signal or a 0 to 5 or 0 to 10 volt signal.
Communication
Communication in a device can either be sent or received. Whether that data is sent or received depends on the type of information. Is there a need to monitor the status of something? If so, an input needs to be received about that information. Is there a need to control something? If so, an output needs to be sent about what needs to occur. Receiving inputs and setting outputs are both things that can be accomplished by using both digital and analog signal types. Therefore, the signals are referred to as analog outputs (AO), analog inputs (AI), digital inputs (DI) or digital outputs (DO).