Accuracy on a water level sensor can be confusing. The specifications tell users the error band as a percentage of a specific scale, rather than directly giving the accuracy. The same principles apply to all level sensors, no matter what’s being measured. At Automation Products Group, Inc. (APG), we’ve put together a guide on how […]
Electromagnetic interference (EMI), also known as electrical noise, can destroy a clean signal from your level sensors and pressure transducers. Protecting your sensors from electrical noise is a top priority. At Automation Products Group, Inc. (APG), we’ve put together four tips to keep EMI at bay. Let’s take a look! Tip 1: Shielded Wire Our […]
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 […]
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 […]
For both contact and non-contact methods of liquid level measurement, surface disruption can cause problems. Stilling wells are a great way to dampen disruptions, and provide a clean target surface for an accurate measurement. Stilling wells are used most often with ultrasonic sensors, as they dampen waves and turbulence, and reduce foaming. However, level probes […]