DIFFERENTIAL PRESSURE GAUGE

DWYER MARK-II M-80

INSTALLATION
Position manometer on a vertical surface. Drill two 1/8˝ or 9/64˝ holes on a vertical line 3-15/16˝ apart. Loosely mount manometer with self-tapping screws provided. Adjust gage until level bubble is centered in level vial, then secure the manometer tightly.
For portable use, order optional A-612 Portable Stand.

FILLING
Turn the zero set knob counterclockwise until it stops, then turn clockwise 3 full turns. This puts zero in approximately the middle of the travel adjustment in either direction. Remove the fill plug and fill with gage fluid until fluid reaches zero on scale. Minor adjustments can be made to adjust zero by adjusting zero knob.
Replace fill plug. If gage is overfilled, remove excess by inserting pipe cleaner through the fill port to blot up excess fluid.

With the instrument is supplied a flexible double plastic tube 2.4 m along with adapters for connection to 1/8˝ NPT.