Flow Control
SLA5850S1BAB1C2A1
Brooks Instrument SLA5850 Digital Mass Flow Controller
About this part
SLA5850S1BAB1C2A1 is a configured Brooks Instrument SLA5850 digital thermal mass flow controller in the SLA5800 Series. Official SLA5800 documentation identifies SLA5850 as the lower-flow controller platform in an elastomer-sealed digital thermal mass-flow controller and meter family, with configurable gas, full-scale flow, valve, elastomer seal package, electrical interface, and communication options. Stored Sonisys auction records for this exact identifier include Delta Smart or Delta Smart II wording and HE, O2, 1000 SCCM, and 5000 SCCM context, so the physical unit label remains authoritative for exact gas and calibration
Unit-specific configuration
Historical listing records identify this part as HE. Exact gas, range, fittings, valve configuration, and communication interface must be verified from the physical unit label.
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
Specifications
| Device type | Elastomer-sealed digital thermal mass flow controller |
| Series family | Brooks SLA5800 Series elastomer-sealed digital thermal mass flow controllers and meters |
| Model role | SLA5850 is the lower-flow SLA5800 Series controller platform; Brooks data-sheet specifications list full-scale flow coverage from 0.003 slpm to 50 slpm N2 equivalent for the SLA5850/SLA5860 class |
| Configured-unit rule | Gas, full-scale range, process connections, elastomer materials, valve state, power, and communications vary by configured code and unit calibration |
| Series accuracy context | Brooks SLA5800 data-sheet accuracy for SLA5850/SLA5860-class devices is listed as +/-0.9% of set point from 20-100% full scale plus +/-0.18% full scale below 20% full scale, with higher accuracy available for 17025 certified devices |
| Repeatability and reproducibility | Brooks SLA5800 data sheet lists repeatability and reproducibility as 0.20% of set point |
| Response time | Brooks SLA5800 data sheet lists less than 1 second settling time to within +/-2% full scale for a 0-100% command step through 100 slpm N2 equivalent, and less than 3 seconds for higher flow ranges |
| Digital platform | SLA5800 instruments support analog and digital communication options depending on configuration, including RS-485/analog, Profibus, DeviceNet, EtherCAT, EtherNet/IP, and PROFINET variants in current family documentation |
| Gas/range programmability | The SLA5800 platform supports selectable calibration curves and MultiFlo-related gas/range flexibility on applicable configurations |
| Application domain | Chemical and petrochemical research, laboratory, analytical, fuel-cell, life-science, production, and process gas control applications |
| Stored auction gas/range combinations | Stored Sonisys titles for SLA5850S1BAB1C2A1 include HE, O2, 1000 SCCM nitrogen, and 5000 SCCM nitrogen context; these are observed listing contexts, not official model-wide specifications |
Documentation Downloads
Local PDF copiesPart Photos
10 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 $78.00 to $870.00. Based on 4 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks SLA5850S1BAB1C2A1 Delta Smart Mass Flow, 1000 SCCM, Nitrogen
- Brooks SLA5850S1BAB1C2A1 Delta Smart Mass Flow, 5000 SCCM, Nitrogen
- Brooks SLA5850S1BAB1C2A1 Oxygen (O2) Delta Smart II Mass Flow Controller
- Brooks SLA5850S1BAB1C2A1 Helium (HE) Delta Smart II Mass Flow Controller