DH Instruments MOLSTIC-S, Руководство по эксплуатации и обслуживанию

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MOLSTIC-S™ OPERATION AND MAINTENANCE MANUAL
© 2004-2007 DH Instruments, a Fluke Company
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2.2 SITE REQUIREMENTS
The molstic-S should be installed on a stable work surface at a convenient height. The bottom edge of
the molstic-S platform has a rubberized material that will protect the work surface from marring and
scratching. This will also prevent the molstic-S from slipping on smooth surfaces.
When installing the molstic-S, consideration should be given to where the gas supply to molbloc-S will be
located. Minimize the length of supply plumbing and keep it organized so that it does not cross the area
in which the operator will be working.
2.3 INITIAL SETUP
2.3.1 PREPARATION FOR OPERATION
Remove the plastic protective caps from the supply and outlet ports of the molstic-S.
Determine whether the DUT will be installed upstream or downstream of the molstic-S.
Make the inlet gas supply and DUT connections per the instructions below.
DUTs that have built in flow control capability, such as MFCs, (and are to be tested in
flow control mode) must be tested in the upstream location. Install this type of DUT
upstream of the molbloc-S only.
2.3.2 INSTALLATION AND SWAPPING OF MOLBLOC-S
Typically the molstic-S mounting system configured with 1/4 in. plumbing is used to accommodate
the molbloc-S elements with 48 mm square bodies and 1/4 in. male VCR
®
inlet fittings,
designated 1E2-S and smaller. In some cases, when running “low” flows in sub-atmospheric mode,
it might be desirable to use molbloc-S elements that have 1/2 in. VCR inlet fittings on the 1/4 in.
molstic-S mounting system. Use the inlet flange conversion kit, P/N 401935.
The molstic-S mounting system configured with 1/2 in. plumbing can accommodate any
molbloc-S elements with 48 mm square bodies, up to 2E3-S. In order to be used on this molstic,
any molbloc-S element designated 1E2-S and smaller must have its 1/4 in. VCR inlet fitting
replaced with the 1/2 in. VCR end flange through the use of conversion kit P/N 401936.
2.3.2.1 REPLACING VCR INLET FLANGES ON MOLBLOC-S
(AS REQUIRED)
Use the following procedure to replace the VCR inlet flange on the molbloc-S
elements, using conversion kit P/N 401935 or 401936.