Flow Control
4850JAB1B1F3QBA
Brooks Instrument Thermal Mass Flow Controller
About this part
4850JAB1B1F3QBA is an exact identifier associated with the Brooks 4800 Series. It is classified here as a thermal mass flow controller. Gas, full-scale flow, valve state, fittings, analog range, communications, and customer options are determined by the complete model code
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
Specifications
| Manufacturer or brand family | Brooks Instrument |
| Exact archived identifier | 4850JAB1B1F3QBA |
| Product family | Brooks 4800 Series |
| Equipment type | Thermal mass flow controller |
| Documented or observed role | Measures gas mass flow and modulates an integral control valve in response to an electrical setpoint |
| Unit-specific boundary | Gas, full-scale flow, valve state, fittings, analog range, communications, and customer options are determined by the complete model code |
| Sensor | MEMS-based thermal mass-flow sensor |
| Family flow context | Documented configurations span 50 sccm through 40 slpm; the exact unit range is nameplate-specific |
| Family interfaces | Analog I/O and RS-232 are documented; other interface choices depend on configuration |
Configuration and Replacement Boundary
Use the complete 4850JAB1B1F3QBA marking together with the unit nameplate, revision, calibrated range, electrical interface, mechanical connections, and host-equipment documentation. A family resemblance or partial code match does not establish interchangeability.
Archived Unit Context
These statements preserve what sellers recorded for individual units without turning listing text into family-wide specifications.
- Brooks Instrument 4800 Series Mass Flow Meter 4850JAB1B1F3QBA 500SCCM USED O4
Documentation Downloads
Local PDF copiesPart Photos
4 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerThe typical recorded price range is $39.93 to $39.93. Based on 1 archived listing record; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks Instrument 4800 Series Mass Flow Meter 4850JAB1B1F3QBA 500SCCM USED O4