How to Clean the APG PG5 Power Button

Is the power button on your PG5 digital pressure gauge not working quite as well as it used to? Learn how to get your power button working just like new in this how-to video!

Transcript:

“Thank you for using Automation Products Group’s PG5 General Purpose Digital Pressure Gauge for your pressure monitoring needs. The PG5 is the foundation of our PG series of gauges. With tare, peak hold, and a wide range of functions, the PG5 is a tough and versatile gauge. Although it is built to withstand the rigors of your application, the PG5 is not IP67 certified and must be protected from potentially damaging or corrosive environmental materials. If your PG5 is installed in an environment where dust or other airborne particles are common, you may notice that the power button becomes increasingly difficult to engage. This issue is caused by a buildup of debris on the gauge’s power button contacts.

Fortunately, this problem is easy to fix with a screwdriver, a q-tip, and a cleaning solution such as alcohol. Before beginning the procedure, disconnect the battery and make sure you are properly grounded to protect against electrostatic discharge. Start by removing the three screws securing the back housing of the gauge, then remove the housing. The circuit board will now be exposed. Carefully remove the two screws securing the circuit board to the front housing, being careful not to lose the battery wire clamp. Turn the gauge over and remove the power button if it is stuck to the board. Underneath, you will find the power button contact pads on the center of the board, just above the LCD. Using a q-tip dipped in alcohol or another suitable cleaner, gently scrub the pads and surrounding area until all residue is removed. Make sure the board is completely dry before reassembling the gauge.

Replace the power button in the front housing, carefully reinstall the board, and secure it with the two screws. When fastening the battery wires to the clamp, ensure the clamp does not pinch the wires. As you reassemble the housing, be careful not to pinch or damage the sensor battery wires with the screws. Reinstall the battery and battery cover before installing the center housing screw. Once reassembled, the power button should work like new.

If debris buildup on the PG5 power button contacts becomes a recurring problem, consider upgrading to the PG7. The PG7 features an IP67-rated housing, making it ideal for dirty environments and outdoor applications. If you have any problems with this procedure or your gauge, feel free to contact our application engineers at (435) 753-7300 or online at apgsensors.com.”