Flow Control
5850S/BC1AA1AC3BA0A1
Brooks Instrument Smart-Series Digital Mass Flow Controller
About this part
5850S/BC1AA1AC3BA0A1 is a configured Brooks Instrument 5850S Smart-Series thermal mass flow controller identifier observed in stored Sonisys auction records. Official Brooks 5800S documentation covers the 5850S controller model in the Smart Mass Flow family, but no verified official Brooks PDF or product page is currently available that names the full configured identifier. Exact gas, full-scale flow, calibration gas, fittings, valve state, input/output option, and seal package should be verified from the physical unit label or calibration paperwork
Configurations vary. Verify the exact unit before choosing a replacement.
Key Facts
ManufacturerBrooks Instrument
Part number5850S/BC1AA1AC3BA0A1
Product family5850S
Device typeMass Flow Controller
Configuration statusConfiguration varies
Application classSemiconductor/high-purity gas delivery
CategoryFlow Control
Specifications
Identification
| Device type | Smart-Series digital thermal mass flow controller |
| Series family | 5800S Smart Mass Flow Series |
| Configured code | 5850S/BC1AA1AC3BA0A1 |
| Official covered controller models | Brooks 5800S documentation covers Smart Mass Flow Controller models 5850S, 5851S, and 5853S |
Configuration
| Configured-unit rule | Gas, full-scale range, fitting, valve state, connector, analog/digital I/O package, and seal package vary by configured model code and unit calibration |
Flow
| 5850S family flow range context | Brooks 5800S documentation lists the 5850S controller family from 0.003 to 30 ln/min nitrogen-equivalent full scale, depending on configuration |
Performance
| Accuracy | +/-0.7% of rate and +/-0.2% full scale at calibration conditions; optional +/-0.5% of rate and +/-0.1% full scale depending on configuration |
| Repeatability | +/-0.25% of rate |
| Rangeability | 50:1 within specified accuracy |
| Controllability | 100:1 total operating range |
| Controller settling time | Standard 1 second settling time for 5850S / 5851S controllers, with response up to 0.2 seconds available by configuration |
Pressure
| Pressure rating context | Brooks 5800S documentation lists 5850S / 5860S pressure rating context of 100/300 bar, with high-pressure operation dependent on configuration |
Environmental
| Temperature range | Ambient and process gas: 0 C to 70 C; optional 0 C to 100 C configuration context is listed in Brooks family documentation |
Materials
| Wetted materials | Stainless steel wetted parts with Viton, Buna-N, PTFE/Kalrez, EPDM, or mechanical elastomers depending on configured build |
Mechanical
| Process connection context | Brooks 5800S documentation lists NPT(F), tube compression, VCR/VCO, downport, and DIN/ANSI flanged connection contexts depending on configuration |
| Electrical connector | 15-pin D-type connector with gold-plated contacts; 9-pin D-type connector applies when Profibus-DP is configured |
Electrical
| Setpoint input | 0-5 Vdc or 1-5 Vdc voltage input, or 0-20 mA / 4-20 mA current input depending on configuration |
| Analog output | 0-5 Vdc, 1-5 Vdc, 0-20 mA, or 4-20 mA flow output depending on configuration |
| Controller power | +15 to +28 Vdc, with -15 Vdc used for selected configurations such as normally open valve builds |
| 5850S controller current draw | At +24 Vdc, 140 mA typical for 5850S / 5851S / 5853S controllers; at +15 Vdc, 185 mA typical |
Controls
| Digital communication | RS-232 or RS-485 communication with selectable baud rates from 1200 to 38K4; Profibus-DP up to 12 Mbit/sec when configured |
| Calibration storage | Digital communication can access calibration data, including storage of up to 10 calibration curves |
| Diagnostics | Self-diagnostics can activate an alarm output and expose failure details through digital communication |
Applications
| Application domain | Semiconductor, laboratory, analytical, and process gas handling |
Observed variants
| Stored auction gas/range combinations | No reliable gas or full-scale flow range was extracted from stored auction titles for this exact configured identifier |
Documentation Downloads
Local PDF copiesPart Photos
5 imagesHistorical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offerArchive records2Tracked historical listing records
Historical median price$299.00Based on archived listing records
Recorded price range$299.00 - $299.00Low to high recorded listing price
Local documents2PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $299.00 to $299.00. Based on 2 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
- Brooks 5850S/BC1AA1AC3BA0A1 Smart Mass Flow 30 Days Warranty Fast Shipping
Archived listings
Other Part Numbers & Aliases
5850S/BC1AA1AC3BA0A15850S BC1AA1AC3BA0A15850SBC1AA1AC3BA0A1Brooks 5850S/BC1AA1AC3BA0A1Brooks Instrument 5850S/BC1AA1AC3BA0A1