PG300
Digital Pressure Gauge Operating Instructions
Operating/Mounting Instructions
1. Mount the gauge on a suitable (or appropriately sized) NPT female fitting. Use Teflon Tape or
Pipe Dope. Do not over tighten.
2. Depress ON/OFF button to power up unit (no pressure applied). If there is a reading other than
zero, press the ZERO RESET button to zero-out the display. Press the On/Off button to switch
to the desired pressure scale.
3. Apply pressure to the gauge - the display should now indicate the pressure being applied.
Note: If the Zero Button is pressed when the pressure is changing, the display will not indicate
"0" (no pressure applied). Press the ZERO button to Zero-out the display once the pressure
has been stabilized
4. Press the ON/OFF button to shut off display. Note: The display will automatically turn off after
approximately 3 minutes
5. Battery Replacement: The battery is located within the inside of the rear cover. Remove the
screw to remove the rear cover. Using a small screwdriver to slide the battery out un-snap the
old 9V battery and replace with the new battery. Replace the rear cover and the screw when
complete.