Variable frequency drives are important in pump systems. They’re a cost-saving solution in pump control. Some of the sensors we offer at Automation Products Group, Inc. (APG) can work with variable frequency drives. What is a Variable Frequency Drive? A variable frequency drive (VFD) is a power supply to an AC pump motor. Its job […]
Independent testing laboratories, such as the Canadian Standards Association (CSA) and Underwriters Laboratories (UL), serve as a third party to validate and ensure that a product is safe for use. For many years, UL was regarded as the foremost certification laboratory in the United States. Yet, within the past 20 years, acceptance of CSA in […]
Calculating the width of an ultrasonic beam can be a little tricky. Luckily, the experts at Automation Products Group, Inc. (APG) have done it enough times that we can give you a solid reference point. We have to make a key assumption in order to do it: maximum sensitivity settings. If your ultrasonic sensor’s sensitivity […]
Calibration is a critical aspect of pressure sensors, and that includes submersible pressure sensors. Regular calibration of your sensor will help maintain accurate pressure measurements and reduce the risk of the calibration shifting. At Automation Products Group, Inc. (APG), we offer the PT-500 Submersible Pressure Transducer, the only pressure sensor on the market that can […]
Not all liquids are created equal. The level of some contained liquids is easy to detect, while other liquids create a heavy foam or vapors that can cause problems for ultrasonic level sensors. Problematic Foam and Vapors Ultrasonic level sensors use sound waves to measure the level of the liquid. Heavy foam can absorb the […]
Many liquids used in processing applications will separate from each other when allowed to settle. They do this either because they’re completely immiscible, or they have different densities. When a liquid level of each is required, you need a dual level sensor, also known as an interface level sensor. At Automation Products Group, Inc. (APG), […]
Proper mounting is critical for an ultrasonic sensor. Mounting mistakes are one of the most common installation pitfalls with ultrasonics. We’ve consulted with our experts at Automation Product Group, Inc. (APG) to create this handy guide on installing ultrasonic level sensors. Here are a few practical guidelines that can help ensure trouble free installation for […]
Ultrasonic level sensors are a little farsighted. By nature of the technology, most don’t measure surfaces within a few inches of the transducer face. This is known as a blanking distance. Understanding this blanking distance is the key to understanding how your ultrasonic level sensor measures distance. At Automation Products Group, Inc. (APG), we’ll further […]
Industrial areas that present a risk of fire or explosion are called hazardous locations. Sensors installed in these areas can potentially ignite flammable vapors, dust, or fibers. To prevent a disaster, these sensors must be designed in a way that eliminates risk. At Automation Products Group, Inc. (APG), we provide specialized sensor that are safe […]