The Basics of Pressure Transducers

APG's PT-L1 Industrial Pressure TransducerWhat is a pressure transducer? A pressure transducer is a sensor used to measure pressure. Depending on where you put it and how you connect it, a pressure transducer can tell you the pressure in a pipe or tank, the weight of an object, or even the depth of fluid above it. Most industrial pressure transducers are made of two technical parts, a transducer and a transmitter, inside a third, equally important part, the housing.

Pressure Transmitter Reduces Flow Rate of City Water Supply

Pressure transmitter monitor city water flow rateUnder the city streets, lie Pressure Reducing Valves (PRV) used to reduce the flow rate or velocity of the city's water supply as it comes off the mountain or from local rivers.

APG's PT-L1 Pressure Transmitter measures the inlet and outlet water pressures of the PRV. The PT-L1’s 4/20mA output signal is sent to a control system whereby city personnel can monitor the water pressures with a Smartphone, thus, helping prevent any possible water mishaps that could come from over pressured waterlines.

Three Reasons Why The PT-405 Excels in Harsh Environments

MONSTER TRUCKWhat is it about a pressure transducer that makes it fit for use in harsh environments? "Insanely strong," "unbelievably tough," "the grittiest of them all," and other things that might be yelled by the announcer at a monster truck rally come to mind. And while grading pressure sensors on the "Monster Truck Scale of AWESOMENESS!" might not be helpful, thinking about a pressure sensor surviving a monster truck rally gives us a good jumping off point (just like the truck ramp!) for looking at why the Series PT-405 Explosion Proof, Heavy Duty Pressure Transducer excels in harsh environments.

APG Introduces New Series PT-405 Explosion Proof, Heavy Duty Pressure Transducer

APG's New PT-405 Explosion Proof Pressure Transducer

LOGAN, UT – Automation Products Group, Inc. (APG) introduces the new Series PT-405 Explosion Proof, Heavy Duty Pressure Transducer.

The PT-405 offers unbeatable performance in harsh conditions and hazardous locations. The PT-405 carries a Class I, Division 1, Explosion Proof rating from CSA, an IP65 rated case, and single seal construction for the highest safety factor. With ranges up to 30,000 psi, and outputs including 4-20 mA, 0-5 or 0-10 VDC, and RS-485/Modbus RTU, the PT-405 is as versatile as it is tough.

APG Introduces new Series PT-200 1% Industrial Pressure Transducer

PT-200 1% Industrial Pressure Transducer Starting at $130

LOGAN, UT – Automation Products Group, Inc. (APG) introduced a new pressure transducer, the series PT-200 1% Industrial Pressure Transducer.

The series PT-200 1% Industrial Pressure Transmitters are rugged, general purpose sensors that offer reliable and accurate measurements under harsh conditions.


remote storage tank in alaskaMany tanks, so it seems, are at the edge of existence. They make their home in the scorching desert, the frozen tundra, in the middle of cornfields, or on a steep mountain slope. While these landscapes may be breathtaking, they certainly don’t make sensor deployment easy or cheap.

And even if your tanks are city dwellers, you still don’t want to get unnecessarily spendy on your telemetry. That’s why a pressure transducer is the ideal choice.

What Is The Difference Between A $40 And A $400 Pressure Transmitter?

Just like cars, the expensive ones usually have good reasonGood question. We get asked this from time to time when someone has seen the advertised prices of cheap pressure transmitters. There are a lot of differences between a cheap $40 transmitter and a robust $400 unit.

It all boils down to accuracy and reliability and the necessary manufacturing processes to go along with them.

The old adage is true; you get what you pay for. When purchasing a pressure transmitter, you’re really buying:

What Is Linearity On A Pressure Transducer And How Do I Compare Specs?

Most of us think of measurements linearly - like a rulerFor many of you, the accuracy of the pressure transducer is going to be the most important specification. Accurate measurement is always vital to the proper function of any pressure sensor.

A pressure transducer takes a linear measurement, just like a measuring stick or a ruler. This is the natural way...

4 Fundamental Process Connections You Should Know

NPT threads are tapered, as seen on this brass plug held by calipersPerhaps you have noticed the available process connection thread types when choosing a pressure sensor. Choices include NPT, BSP and UNF to name a few. Which is the proper one to use? The answer usually comes down to where you live.

In the 1800’s there were many types of screw threads that were available and virtually none were compatible. Many manufacturers had their own fastening systems. Fortunately there were some people that sought to standardize process threads...