How to Re-Zero the PT-500 Submersible Pressure Transducer

Learn how to re-zero APG’s PT-500 submersible pressure transducer.

Transcript:

Our PT-500 submersible pressure transducer is the only one on the market with a field-adjustable zero. This lets you correct your sensor as it naturally drifts over time. We’re going to show you how this is done.

We have a small tank with 20 inches of water. At this depth, our output should read 5 milliamps. But, you’ll notice our sensor is incorrect.

So we’ll simply pull our sensor out of the tank and use our magnet to adjust the zero back to 4 milliamps. If you hold the magnet near the middle of the sensor, it moves the zero up. If you hold the magnet near the bottom of the sensor, it moves the zero down. Once your sensor is properly adjusted, lower it back in the tank.

All finished! It’s quick, it’s easy, and you’ll only find it on the PT-500 submersible pressure sensor from APG.