39
Calibration
4000 MiD® Instructions, V6695
Fig. 24
DFI with cover opened
Note:
It is not necessary to remove the three screws from the
top cover of the DFI.
6.
Remove the unions and tubing from the DFI base using the plastic
tweezers (Fig. 39).
Fig. 25
DFI with unions and low flow tube removed
7.
Unscrew the fingertight nuts from the input and reducing unions and
remove the low flow tube.
8.
To fit a new low flow tube, first slide the tube through one of the
fingertight nuts.
9.
Fit the nut to the input union, the larger of the two; push the tube
into the union whilst tightening the nut.
10.
Slide the opposite end of the low flow tube into the second finger-
tight nut.
Unions
Low flow tube
Securing screws
Top cover
Input union
DFI base
Fingertight nuts
Reducing union
