Air Preparation Unit - Air Pipes; Air Preparation Unit; Air Pipes - Metro DataVac M1 User Manual

M1 – M3 Display units
4. AIR PREPARATION UNIT – AIR PIPES
4.1.

Air preparation unit

Air gaging is a measurement of pressure variation.
The variation of pressure must be due to the variation of distance between the gage
and the part being measured. Therefore, it is mandatory to have a high stability air
input, in order not to have variation of pressure due to air input variation.
Metro can supply the air preparation set REF : ACS-PNE-003
The air supply set delivered from Metro for the M1/M3 display consist of:
- 1 push in connector for 8mm ext. tubes
- 1 shut off valve
- 1 regulator adjusted at 3 BAR (0.3 MPa) with a 1µm filter (this pressure is
absolute)
- 1 precision regulator adjusted at 3 BAR (0.3MPa)
- 1 push in connector for 8mm ext. tubes
4.2.

Air pipes

The M1/M3 are fitted with air connectors adapted to connected pipes with 6mm
external diameter and 4mm internal diameter.
In the case of the M3, it is however recommended to use an 8mm ext. tube from the
output of the air preparation unit to a Y connection/reduction to 6mm to the display.
We recommend using flexible pipes that prevent risk of fall or tilt over of the display
due to the orientation of the pipes. See the following picture.
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