Fluke molstic-S Mounting System
Molstic-S™ provides an engineered solution to the practical issues of mounting molbloc-S® mass flow elements.
For molbloc-S Mass Flow Elements
Molstic-S™ provides an engineered solution to the practical issues of mounting molbloc-S® mass flow elements, connecting a gas supply, regulating the operating pressure and connecting the device under test (DUT). A filter is included on the 1/4 inch molstic-S to protect the smaller molbloc-S elements from contamination. Highest quality components are integrated into a convenient, compact, modular assembly to assure optimum molbloc®/molbox™ performance.
The single channel molstic-S is designed to accommodate one molbloc-S element. The dual channel allows two molbloc-S elements to be simultaneously mounted, allowing use of two ranges without changing hardware during a test. In addition, the outlet of the two molbloc-S elements can be plumbed in parallel using the downstream tee assembly (P/N 401884) in order to obtain additional flow range capacity when using a two-channel molbox1+.
A key benefit of its modular design is that molstic-S can be used for testing devices in either the upstream or downstream position. The optional, adjustable DUT stand (P/N 401934) accommodates large DUTs that do not fit on the molstic-S.
molstic-S is available in either 1/2 inch or 1/4 inch system plumbing sizes. The 1/4 inch size is dedicated to the molbloc-S elements designated 1E2-S and lower, and the 1/2 inch size is for the 2E2-S through 2E3-S elements. All molstic-S platforms come with integrated flow shut-off/metering valves. This allows for system leak testing and provides a means of flow control (if required by DUT type). Optional high resolution metering valve kits are available for use with the 1/4 inch molstic-S in order to obtain finer flow control capability.
molstic-S USAGE
Because molbloc-S operates in the critical flow regime, test devices that have flow control capability must be installed upstream of the molbloc-S in order to control flow.
Devices that are to be calibrated at atmospheric pressure are generally installed downstream of the molbloc-S. molstic-S is built modularly in order to provide this flexibility.
Inlet gas supply pressure regulation is vitally important in order to protect the molbox pressure transducers. Therefore, it is recommended that the molstic-S Supply Only molstic be used upstream of test devices that have flow control capability and that the pressure reducing regulator option be installed on the molstic-S when calibrating devices that operate at atmospheric pressure. An optional back pressure regulator can be installed on the molstic-S to provide control of an upstream DUTs downstream pressure.
Dimensions |
|||||
| molstic-S | A | B | C | D | E |
| molstic-S single, 1/4 in | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
— | 600 mm (23.6 in) |
| molstic-S single, 1/2 in | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
— | 600 mm (23.6 in) |
| molstic-S dual, 1/4 in | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
84 mm (3.3 in) |
600 mm (23.6 in) |
| molstic-S dual, 1/2 in | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
84 mm (3.3 in) |
600 mm (23.6 in) |
| dual, 1/4 in w/regulator and tee | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
84 mm (3.3 in) |
750 mm (29.5 in) |
| dual, 1/2 in w/regulator and tee | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
84 mm (3.3 in) |
875 mm (34.5 in) |
| single, 1/4 in w/metering valve | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
— | 600 mm (23.6 in) |
| dual, 1/4 w/metering valve and tee | 103.5 mm (4 in) |
182 mm (7 in) |
590 mm (23 in) |
84 mm (3.3 in) |
875 mm (34.5 in) |
| supply only, 1/4 in | 103.5 mm (4 in) |
182 mm (7 in) |
232 mm (09 in) |
— | 280 mm (11.0 in) |
| supply only, 1/2 | in 103.5 mm (4 in) |
182 mm (7 in) |
232 mm (09 in) |
— | 471 mm (18.5 in) |
Configuration notes
- Each molstic-S comes with 50 centimeters (20 inches) of clear PFA tubing in order to provide versatility in the connection of the device under test (DUT) and inlet supply plumbing.
- All molstic-S platforms come with integrated flow shutoff/ metering valves. This allows for system leak testing and provides a means of flow control (if required by DUT type).
- The 1/4 inch molstic-S platforms are designed to be used with the molbloc-S elements designated 1E2-S and lower. The 1/2 inch molstic-S platforms are designed for use with the 2E2-S through 2E3-S elements. P/N 401935 replaces the 1/2 inch molbloc-S inlet flange of the higher flow elements so that they can be used on the 1/4 inch molstic-S. This is only recommended for 2E2-S molbloc-S element with either calibration type, or the 5E2-S with the LP calibration.
- P/N 401936 replaces the 1/4 inch molbloc-S inlet flange of the lower flow molblocs so that they can be used on the 1/2 inch molstic-S. This is only recommended for 1E2-S molbloc-S element.
Accessory |
Description |
|---|---|
| Metering Valve low flow molstic | Install on molstic downstream of molbloc for manual flow control |
| Metering Valve mid/hi flow molstic | Install on molstic downstream of molbloc for manual flow control |
| DUT stand, adjustable | 3 in x 3 in adjustable platform for vertical |
| PK-MOL-S-VAC, dwn V ac Connect, Mid/low | Accessories to interconnect vacuum pump to molbloc-S, or downstream tee assembly (P/N 401884) |
| Tee assembly, for molbloc-S, downstream | Connects output of two molbloc-S elements for A+B, or common vacuum connection |
| VA-MOL-S, V ac Pump Kit, Low, Std | Vacuum pump kit for 250 slm (up to 5E2-S) |
| VA-MOL-S, V ac Pump Kit, Mid, PFPE | Vacuum pump kit for 1000 slm (up to 5E3-S), special cleaning/oil |
| VA-MOL-S, V ac Pump Kit, Mid, Std | Vacuum pump kit for 1000 slm (up to 5E3-S) |
Product manual
Datasheet
Instruction sheets
- molstic mid flow molbloc Mounting_System
- molstic dual_mid_flow_molbloc_Mounting_System_Instruction_Sheet
- molstic dual low flow molbloc_mounting_system_instruction_sheet
- molstic S Supply Only Platform_1-4_in_and_1-2_in_Installation_Instructions
- Recommendations for 1-4 in Low and Mid_Flow_Metering_Valve_Kits_for_molstic_S_Instruction_Sheet
- PK_mol_4VCR 8VCR_3 8SWG_Adaptor Kit_Installation_Instructions
- PK_mol_4VCR_1_4SWG_Adaptor_Kit_Installation_Instructions
- Installation_and_Use of 1-2 in_Back_Pressure_Regulator_Kit_Instruction_Sheet
- Installation_and_Use of 1-4 in_Back_Pressure_Regulator_Kit_Instruction_Sheet
- Installation of 1-2 in Filter Kit_Instruction_Sheet
- Installation_of_Regulator_Kit_onto_1_4_in_molstic S_Mounting_Platform
- Installation of Regulator_Kit_onto_1_2_in_molstic_S_Mounting_Platform_Instruction_Sheet
- molstic_lo_flow_molbloc_Mounting_System_Instruction_Sheet
- molstic_hi_flow_molbloc_Mounting_System_Instruction_Sheet
