2. INSTALLATION
Page 19
© 2004-2007 DH Instruments, a Fluke Company
Making and Breaking Procedure for molbloc-S VCR Face Seal Connection
n
Install the recommended soft O-ring
securely against the sealing surface
in the nut of the mating fitting.
o
Align the mating nut with the
molbloc’s male VCR fitting and
thread the nut onto the fitting. Hold
the molbloc-S with your hand, rotate
the nut until resistance is felt when
the O-ring begins to compress.
p
Holding the molbloc-S with your
hand, tighten the nut an additional
1/2 turn. A wrench may be used on
the nut if desired, but do not tighten
Figure 15.
molbloc-S VCR Face Seal
Connection
beyond one half turn. If more than one half turn is needed to make a leak
free connection, the O-ring may be damaged and should be replaced.
q
To break the fitting, hold the molbloc-S with your hand and loosen the nut
until it is completely backed off.
Never use wrenches to hold the molbloc-S body.
2.3.2.2.2
molbloc-S Connections to molbox
For the pressure connections, use the molbox
®
to molbloc-S pressure tubes
(P/N 401125) supplied with the molbox. Following the color coding on the
pressure lines, connect the upstream (HI) molbox rear panel quick connector to
the upstream port of the molbloc-S and the downstream (LO) quick connector to
the downstream port. Push firmly on the quick connect until it clicks into place to
assure that the connection is completed.
For the electrical/data connection, use the molbox to molbloc-S connection cable
(P/N 102096, or 102096-CE) supplied with the molbox. Connect the cable to the
15-pin electrical/data connector on the molbloc-S and then to the molbox rear
panel connector labeled ”molbloc”.
2.3.2.2.3
Swapping molbloc-S Elements onto molstic-S
To change the molbloc-S element, break the VCR face seal inlet connection.
The O-ring seal is reusable but should be examined for damage that could cause
a leak. Place the new molbloc-S into the cradles, and make the VCR face
seal connection.
