Brooks Instrument 5851S/ Smart-Series PROFIBUS-DP Thermal Mass Flow Controller
About this part
BD1DA1ID0BA1B1 is the configured suffix observed with a Brooks Instrument 5851S Smart-Series thermal mass flow controller, yielding the full configured identifier 5851S/BD1DA1ID0BA1B1. Official Brooks 5800-S model-code tables identify 5851S/BD as a 20 to 100 ln/min full-scale-range controller base and decode this suffix as 3/8 inch tube compression fittings, Viton seals and valve seat, a normally closed valve, digital-communication-only I/O, PNO-certified PROFIBUS-DP, a mating connector, standard response and calibration, +24 Vdc power, and safe-area classification. Stored auction evidence describes the observed unit as air-calibrated at 75 SLPM; gas and calibrated full scale remain unit-specific and should be confirmed from the physical calibration label or certificate
Configurations vary. Verify the exact unit before choosing a replacement.
Application classIndustrial automation and process equipment
CategoryFlow Control
Specifications
Identification
Part identifier
BD1DA1ID0BA1B1
Observed full configured identifier
Brooks Instrument 5851S/BD1DA1ID0BA1B1
Official base model
Brooks 5851S/BD Smart-Series mass flow controller
Series family
5800-S Smart-Series elastomer-sealed thermal mass flow controllers
Flow
5851S/BD flow range context
20 to 100 ln/min full-scale range class referenced to normal conditions of 0 deg C and 1013.25 mbar; actual gas and calibrated full-scale value are configured per unit
Mechanical
Process connection code
1D: 3/8 inch tube compression fittings
Materials
Seal and valve-seat code
A: Viton
Controls
Valve code
1: normally closed valve for the 5850/5851 controller series
Electrical
Input/output code
I: digital communication only
Interconnection cable code
B: mating connector only
Power supply code
B: +24 Vdc standard selection
Main connector context
Brooks 5800-S documentation identifies a 15-pin Sub-D main connector; the PROFIBUS-DP interface uses an additional 9-pin Sub-D network connector
Communications
Communication code
D0: PNO-certified PROFIBUS-DP interface
PROFIBUS-DP network context
RS-485-based PROFIBUS-DP with automatic baud-rate detection from 9600 baud through 12 Mbaud and a separate female 9-pin Sub-D network connector on the 5800 series
Performance
Enhancement code
A: standard response, listed for 5850/5851 controller models as less than 1 second
Family accuracy context
+/-0.7% of rate and +/-0.2% full scale at calibration conditions; optional enhanced accuracy is listed separately by Brooks
Family repeatability
+/-0.25% of rate
Calibration
Calibration code
1: standard calibration included
Safety
Area classification code
1: safe area
Configuration
Configured-unit rule
Gas calibration, full-scale setting, pressure conditions, and calibration paperwork remain unit-specific even when the Brooks model-code suffix identifies fittings, seals, valve state, digital interface, cable, calibration option, power, and area classification
Historical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offer
Archive records2Tracked historical listing records
Historical median price$778.13Based on archived listing records
Recorded price range$6.26 - $1,550.00Low to high recorded listing price
Local documents2PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $160.63 to $1,395.63. Based on 2 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
Brooks Model 5851S BD1DA1ID0BA1B1 Mass Flow Controller AIR 75 SLPM NEW IN BOX
Brooks Model 5851S BD1DA1ID0BA1B1 Mass Flow Controller AIR 75 SLPM NEW IN BOX B
