APG Level Switches
APG creates level switches to deliver precision and reliability in liquid and material level monitoring for industrial applications. If the level of a hazardous liquid is too high or too low, it can cause equipment failures, unsafe working environments, and even physical danger to personnel. If the level of a safe liquid is too high, it can cause flooding, significant property damage, and business interruption. So, APG level switches have to work. They have to be tough enough to survive in nasty environments and reliable enough to perform error-free in anything from clean water applications to wastewater treatment plants to huge chemical processing operations.
APG level switches have to be simple to use, which means that just about any operator or technician should be able to figure out how to install them, wire them into a system, and get them up and running in a short period. After that, they should work with a minimum of maintenance and a long period of reliable service (without requiring much more than the occasional wiping of a sensor if it is installed in a manner if it could come into contact with a lot of gunk).
FAQs
What are APG level switches used for?
APG level switches monitor liquid or material levels in tanks, sumps, and vessels to control pumps, alarms, and automated processes.
Are APG level switches reliable in harsh environments?
Yes, many APG switches are built with corrosion-resistant housings, sealed probes, and rugged materials for demanding industrial conditions.
Can APG level switches handle chemicals or corrosive liquids?
Certain models are specifically designed for aggressive chemicals, wastewater, and corrosive industrial fluids.
Are APG float switches suitable for wastewater?
Yes, APG float switches are widely used in wastewater, sump pumps, and general water-level applications due to their durability.
Can APG level switches detect solids or slurries?
Vibration and capacitive models can detect slurries, powders, and some solid materials depending on the application.
Transmitters vs Transducers
Some of the most common types of transmitters and transducers can be found on pressure instruments. Examples of these include: drop-in well pressure devices and devices that measure the pressure in a pipe or gas chamber. Transmitters and transducers can also be found on flow and speed measurement devices.
What is the difference between transmitters and transducers?
The main difference is the way they send data to the monitoring device, like a PLC. In terms of measurement, the transmitter will reference a measuring unit by sending a milliamp signal (such as 4-20 mA). A transducer will reference a measuring unit by sending a voltage signal, typically in volts or millivolts.
Why have the two different types of transmission methods?
The method will depend on the application. If the electrical connection in the application travels a short distance, a pressure transducer is the better choice. Pressure transducers are smaller with fewer active electronic components that can be upset by electromagnetic interference. Also, the voltage signals transmitted over longer distances are subject to voltage drop and signal corruption. A transmitter is better for transmitting signals over a long distance.