AB-6655
17
High pressure port
for differential pressure pickup
Low pressure port
for differential pressure pickup
Connection of the air flow sensor
For differential pressure pickup, connect the tube for the total pressure measuring port of the air flow sensor to the high pressure
port (indicated with "+") of Infilex VC. Also connect the tube for the static pressure measuring port of the air flow sensor to the
low pressure port (indicated with "-") of Infilex VC.
Required specification of the air flow sensor tube
Type
Length
Inner diameter
Outer diameter
Material
Flexible tube
Max. 1 m
5 mm to 6 mm
Max. 10 mm
PVC, silicon rubber
Inflexible tube
5.5 mm to 6.5 mm
PVC: Polyvinyl chloride
Notes:
* Use the tube as specified in the above table.
* If the tube of the differential pressure pickup does not meet the required specification shown in the above table, use a joint to meet the
specification.
* Total tube length must be 1 m max. even if two tubes with different diameters are connected by the joint.
Figure 16. High and low pressure ports for differential pressure pickup
