When deciding how far you can run conduit and cable, keep a few things in mind. The power supply and the communication signal should be considered. Resistance, electrical noise, and the output signal limit the length of your cable runs. At Automation Products Group, Inc. (APG), we’ve consulted with our team of experts and put […]
A power supply, whether regulated or unregulated, is vital in electronic devices. Most of the world relies on having a power supply. Understanding the differences between a regulated or unregulated power supply can assist you in choosing a sensor from Automation Products Group, Inc. (APG), and we’ve put together a handy guide to get you […]
Float level transmitters rely on matching the right float with the right specific gravity, or density, of your liquid. While there are other specifications that matter (i.e. chemical compatibility, temperature, and pressure), the accuracy of your float level transmitter is tied directly to specific gravity. Each float has a reference point where the float is […]
Shunt Cal, short for Shunt Calibration, is a method for determining the full-scale output of a pressure transducer by electrically simulating a full-scale load. Either a shunt resistor is applied to the transducer circuit, or voltage is applied to an ancillary circuit designed to generate a full-scale output. That output can then be measured precisely […]
Two of the most well known protection methods for instrumentation in hazardous areas are Intrinsic Safety and Explosion Proof. The difference between the two is quite large, and amounts to the idea of prevention vs containment. Then there are the practical differences, which are largely based on how the two are wired. We’ll discuss these […]
When you need to measure a vacuum, you may instantly think of a compound pressure gauge instead of absolute pressure gauges. After all, that’s how they’re used. However, you might want to take a look at absolute pressure gauges. The differences between the two are relatively subtle but essential. So let’s take a look. Reference […]
Many water wells range in depth from 10 to 60 feet, while others are up to 100 feet. So when a customer needs a water level sensor in these deep wells, the experts at Automation Products Group, Inc. (APG) recommend our submersible pressure transducer, the PT-500. Submersible pressure transducers are a favorite in the water […]
You have probably heard the term “pressure transducer” used interchangeably with a few other terms, such as “pressure transmitter” and “pressure sensor.” So what does pressure transducer really mean? How is it different than the other terms so loosely tossed about? Before we go any further, it’s worth pointing out that there are many contextual […]
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 […]