Dwyer Differential Pressure Gage 2-5205-NPT

Select a second gage or manometer

Connect the high-pressure side of the Minihelic® II gage and the test gage to two legs of a tee using short lengths of rubber or vinyl tubing

Apply pressure very slowly through the third leg of the tee

Allow time for pressure to equalize throughout the system

If using a manometer, allow fluid to drain

Enter the reading of the Minihelic® II gage

Ensure no lubrication or periodic servicing is required.

Keep case exterior and cover clean.

Pressure Line Venting and Re-zeroing

Disconnect pressure lines to vent both sides of the gage to atmosphere.

Firmly hold the case of gage with one hand.

Unscrew the front cover with the palm of the other hand in a counterclockwise direction.