358 Series MLWB mass flow meters
High accuracy, multi-parameter portable low pressure drop laminar mass flow meter.
358 Series MLWB Portable low pressure drop mass flow meters designed to measure mass flow, volumetric flow, gas pressure, and gas temperature for 98+ gases and 20 custom-defined mixtures across a very wide flow range from 0.5 smL/min to 1000 sL/min – 0.01% to 100% of full scale. Making them ideal for on-the-go process calibration, verification (ex. sampling pump), and validation.
Millisecond-response times immediately upon powering up, to display flow, pressure, and temperature readings in real-time, in your choice of engineering units. Backlit LCD readout (Optional color TFT dispay)
Built to be carried around, with a battery lifetime of up to 18 hours and drop-resistance with minimal system impact. Equiped with a standard Micro-USB connector for power and serial communication.
| Accuracy | [0,5 smL/min – 5 smL/min] : ±0.8% RD and ±0.2% FS. [10 smL/min – 100 sL/min] : ±0.75% RD or ±0.1% FS whichever is greater. [250 sL/min – 1000 sL/min] : ±0.8% RD and ±0.2% FS. |
| Calibrations | Performed at standard conditions 101.4 kPa and 21.1 °C unless otherwise requested or stated. |
| Repeatability | ± (0.2% of reading + 0.02% of full scale) |
| Sensor Response Time | <1 ms |
| Instrument warm-up time | < 1 s |
| Operating temperature | -10 to +60 °C |
| Digital signals options | Serial over Micro-USB B |
| Maximum internal gas pressure (static) | Max 3.1 bar(g) |
| Maximum instantaneous differential pressure | Max 690 mbar |
| Materials | 302 / 303 stainless steel, Viton®, glass-reinforced polyphenylene sulfide, alumina, glass, gold, silicon, heat-cured epoxy, heat-cured silicone rubber. |
| Connections | [0,5 smL/min – 20 smL/min] : M5 female thread (10-32 compatible). [50 smL/min – 5 sL/min] : 1/8′′ NPT female. [10 sL/min – 20 sL/min] : 1/4′′ NPT female. [40 sL/min] : 1/2′′ NPT female. [50 sL/min – 500 sL/min] : 3/4′′ NPT female. [1000 sL/min] : 2′′ NPT female. Options : Compression, face seal, push-to-connect, BSPP, SAE, or Swagelok® (including tube, VCO®, and VCR®-compatible). |
| Description | Part Number | |
|---|---|---|
| Universal Baseplate : A universal bench top stand commonly used with our flowmeters, controllers or rotameters. | 35780 |  |
| Pelicase for maximum safety during transport | 1200-000-110E |  |
| RS232 Communication Cable : 8 pin mini-DIN to D-SUB 9 (1.8 m / 6 feet) | 35754 |  |
| RS232 Communication Cable + Mass Flow Interface Software, include : – Mass Flow Interface Softaware – 8 pin mini-DIN to D-SUB 9 communication cable (1.8 m / 6 feet) – Micro USB communication cable (for portable meters) | 31754 | |
| USB to RS232 adapter | 35782 |  |
| USB to RS232 adapter (8x ports) | USB-RS232 |  |
Filters
| Description | Part Number | |
|---|---|---|
| 1/8″ NPT Filters: 20μ filter + element 20μ filter element (replacement; includes fresh O-rings) | ILF-1/8-20 ILFE20 |  |
| 1/4″ NPT Filters: 40μ filter + element 40μ filter element (replacement; includes fresh O-rings) | ILF-1/4-40 ILFE40 | |
| 1/2″ NPT Filters: 40μ filter + element 40μ filter element (replacement; includes fresh O-rings) | ILF-1/2-40 ILFE40L | |
| 3/4″ NPT Filters: 40μ filter + element 40μ filter element (replacement; includes fresh O-rings) | ILF-3/4-40 ILFE40L | |
Fittings and adapters
# 10-32 UNC
| Description | Connection 1 size | Connection 2 size | Part Number | |
|---|---|---|---|---|
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/8 in. Tube OD x #10-32 Male Thread | 1/8″ Tube fitting | #10-32 UNC | SWA_SS-200-1-0157 |  |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/4 in. Tube OD x #10-32 Male Thread | 1/4″ Tube fitting | #10-32 UNC | SWA_SS-400-1-0256 | |
1/8″ NPT
| Description | Connection 1 size | Connection 2 size | Part Number | |
|---|---|---|---|---|
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/8 in. Tube OD x 1/8 in. Male NPT | 1/8″ Tube fitting | 1/8″ Male NPT | SWA_SS-200-1-2 |  |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/4 in. Tube OD x 1/8 in. Male NPT | 1/4″ Tube fitting | 1/8″ Male NPT | SWA_SS-400-1-2 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3/8 in. Tube OD x 1/8 in. Male NPT | 3/8″ Tube fitting | 1/8″ Male NPT | SWA_SS-600-1-2 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/2 in. Tube OD x 1/8 in. Male NPT | 1/2″ Tube fitting | 1/8″ Male NPT | SWA_SS-810-1-2 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3 mm Tube OD x 1/8 in. Male NPT | 3 mm Tube fitting | 1/8″ Male NPT | SWA_SS-3M0-1-2 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 4 mm Tube OD x 1/8 in. Male NPT | 4 mm Tube fitting | 1/8″ Male NPT | SWA_SS-4M0-1-2 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 6 mm Tube OD x 1/8 in. Male NPT | 6 mm Tube fitting | 1/8″ Male NPT | SWA_SS-6M0-1-2 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 8 mm Tube OD x 1/8 in. Male NPT | 8 mm Tube fitting | 1/8″ Male NPT | SWA_SS-8M0-1-2 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 12 mm Tube OD x 1/8 in. Male NPT | 12 mm Tube fitting | 1/8″ Male NPT | SWA_SS-12M0-1-2 | |
1/4″ NPT
| Description | Connection 1 size | Connection 2 size | Part Number | |
|---|---|---|---|---|
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/8 in. Tube OD x 1/4 in. Male NPT | 1/8″ Tube fitting | 1/4″ Male NPT | SWA_SS-200-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/4 in. Tube OD x 1/4 in. Male NPT | 1/4″ Tube fitting | 1/4″ Male NPT | SWA_SS-400-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3/8 in. Tube OD x 1/4 in. Male NPT | 3/8″ Tube fitting | 1/4″ Male NPT | SWA_SS-600-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/2 in. Tube OD x 1/4 in. Male NPT | 1/2″ Tube fitting | 1/4″ Male NPT | SWA_SS-810-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3 mm Tube OD x 1/4 in. Male NPT | 3 mm Tube fitting | 1/4″ Male NPT | SWA_SS-3M0-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 4 mm Tube OD x 1/4 in. Male NPT | 4 mm Tube fitting | 1/4″ Male NPT | SWA_SS-4M0-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 6 mm Tube OD x 1/4 in. Male NPT | 6 mm Tube fitting | 1/4″ Male NPT | SWA_SS-6M0-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 8 mm Tube OD x 1/4 in. Male NPT | 8 mm Tube fitting | 1/4″ Male NPT | SWA_SS-8M0-1-4 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 12 mm Tube OD x 1/4 in. Male NPT | 12 mm Tube fitting | 1/4″ Male NPT | SWA_SS-12M0-1-4 | |
1/2″ NPT
| Description | Connection 1 size | Connection 2 size | Part Number | |
|---|---|---|---|---|
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/8 in. Tube OD x 1/2 in. Male NPT | 1/8″ Tube fitting | 1/2″ Male NPT | SWA_SS-200-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/4 in. Tube OD x 1/2 in. Male NPT | 1/4″ Tube fitting | 1/2″ Male NPT | SWA_SS-400-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3/8 in. Tube OD x 1/2 in. Male NPT | 3/8″ Tube fitting | 1/2″ Male NPT | SWA_SS-600-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/2 in. Tube OD x 1/2 in. Male NPT | 1/2″ Tube fitting | 1/2″ Male NPT | SWA_SS-810-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3/4 in. Tube OD x 1/2 in. Male NPT | 3/4″ Tube fitting | 1/2″ Male NPT | SWA_SS-1210-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 6 mm Tube OD x 1/2 in. Male NPT | 6 mm Tube fitting | 1/2″ Male NPT | SWA_SS-6M0-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 8 mm Tube OD x 1/2 in. Male NPT | 8 mm Tube fitting | 1/2″ Male NPT | SWA_SS-8M0-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 12 mm Tube OD x 1/2 in. Male NPT | 12 mm Tube fitting | 1/2″ Male NPT | SWA_SS-12M0-1-8 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 16 mm Tube OD x 1/2 in. Male NPT | 16 mm Tube fitting | 1/2″ Male NPT | SWA_SS-16M0-1-8 | |
3/4″ NPT
| Description | Connection 1 size | Connection 2 size | Part Number | |
|---|---|---|---|---|
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/4 in. Tube OD x 3/4 in. Male NPT | 1/4″ Tube fitting | 3/4″ Male NPT | SWA_SS-400-1-12 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3/8 in. Tube OD x 3/4 in. Male NPT | 3/8″ Tube fitting | 3/4″ Male NPT | SWA_SS-600-1-12 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 1/2 in. Tube OD x 3/4 in. Male NPT | 1/2″ Tube fitting | 3/4″ Male NPT | SWA_SS-810-1-12 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 3/4 in. Tube OD x 3/4 in. Male NPT | 3/4″ Tube fitting | 3/4″ Male NPT | SWA_SS-1210-1-12 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 12 mm Tube OD x 3/4 in. Male NPT | 12 mm Tube fitting | 3/4″ Male NPT | SWA_SS-12M0-1-12 | |
| Stainless Steel Swagelok Tube Fitting, Male Connector, 16 mm Tube OD x 3/4 in. Male NPT | 16 mm Tube fitting | 3/4″ Male NPT | SWA_SS-16M0-1-12 | |