54 Chapter 6
For respirators with an outer mesh, install the probe normally
as if the mesh was not present. The sampling probe and push nut
will seal properly right through the mesh.
2. Slide the sampling probe onto the piercing tool. As the pointed
end of the piercing tool is very sharp, be extremely careful
when handling it!
Correct probe location to left
(or right) of valve
Wrong probe location
below (or above) valve