1. INTRODUCTION
Page 1
© 2004-2007 DH Instruments, a Fluke Company
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1.1
PRODUCT OVERVIEW
The molstic-S™ provides an engineered solution to the practical issues of mounting the molbloc-S
®
mass
flow elements, connecting a gas supply, regulating the pressure and connecting the device to be tested.
Highest quality components are integrated into a modular, convenient, compact assembly.
Depending on the variation, the molstic-S provides mounting locations and the necessary hardware for up
to two molbloc-S elements with 48 mm square bodies. It can be used for testing DUT’s in either the
upstream or downstream position. By utilizing the available accessories, the molstic-S allows for the
simultaneous use of two molbloc-S elements (plumbed in parallel with downstream tee assembly
P/N 401884) in order to obtain additional flow range capacity. The optional pressure-reducing regulator
kits (P/Ns 401880 and 401881) are available for mounting and use directly on the molstic-S in order to
provide pressure control capability to the user.
Calibration test devices that are capable of controlling flow must be installed upstream of the molbloc-S if
they are to be tested in “control mode”. Use the molstic-S in conjunction with the appropriate
molstic-S Supply Assembly (P/N 401876 or 401877) when calibrating this type of device.
In order to provide flexibility, the molstic-S is supplied with 50 cm of PFA tubing (either 1/4 in. or 1/2 in. OD) for
use in making connections to the gas supply or to the DUT. Ensure that the safe operating pressure of 1 MPa
(150 psig) is not exceeded when using this tubing.
1.2
SPECIFICATIONS
1.2.1
GENERAL SPECIFICATIONS
1/4 in. molstic-S
1/2 in. molstic-S
Electrical Power Requirements
None required.
None required.
Maximum Supply Pressure
(applied to molstic-S plumbing)
0.7 MPa (100 psig)
0.7 MPa (100 psig)
Operating Temperature Range
15 to 35 °C
15 to 35 °C
Storage Temperature Range
- 20 to 70 °C
-20 to 70 °C
Platform Dimensions (L x W x H)
(without molblocs)
585 mm x 176 mm x 70 mm
(23.0 in. x 7.0 in. x 2.75 in.)
585 mm x 176 mm x 70 mm
(23.0 in. x 7.0 in. x 2.75 in.)
Weight (without molblocs)
2.5 to 6 kg (5.5 to 13.2 lb.)
depending upon configuration
3 to 6 kg (6.6 to 13.2 lb.)
depending upon configuration
