TEA700 Hydraulic Oil Micro Negative Pressure Gauge for Chicken House

1. First install the differential pressure gauge on the wall or vertical plane through the two mounting holes with screws.
2. Adjust the horizontal position so that the blisters in the horizontal column are centered.
3. Then loosen the zero adjustment button for 3~4 turns (you can make a marked reading circle)
4. Start to pour red oil into the differential pressure gauge, unscrew the plug of the injection hole, and fill the red oil bottle from the injection hole until the red oil is close to 0 scale, then screw on the plug and plug it tightly.
5. Zero the red oil differential pressure gauge. After the red oil is stable, turn the zero adjustment button under normal pressure so that the zero point is aligned with the liquid level of the red oil.
6. Finally, connect the "High" and "Low" air nozzles of the high pressure, low pressure and differential pressure gauges with the red oil differential pressure gauge hose respectively, so that the differential pressure gauge is installed.