5851IA1BS2H2DEA is a configured Brooks Instrument 5851i mass flow controller identifier. Official Brooks 5851i documentation describes the Model 5851i as a gas mass flow controller for accurately measuring and rapidly controlling gas flow with a flow sensor, control valve, and integral electronic control system. Stored Sonisys auction records and listing records references repeatedly identify the exact configured code as a Brooks Instrument mass flow controller associated with seller reference T258188; no verified gas or full-scale flow value is currently available in the available title evidence
Configurations vary. Verify the exact unit before choosing a replacement.
Application classSemiconductor/high-purity gas delivery
CategoryFlow Control
Specifications
Identification
Device type
Configured 5851i thermal mass flow controller
Series / model
Brooks Model 5851i mass flow controller
Configured part number
5851IA1BS2H2DEA
Function
Control function
Thermal mass flow measurement with precision control-valve regulation for gases
Configuration
Observed listing context
Stored and listing evidence identifies the exact configured code as a Brooks Instrument mass flow controller associated with reference T258188; no gas or full-scale flow range is visible in the available title evidence
Configured-unit rule
Gas, full-scale range, pressure drop, fittings, seal package, valve behavior, connector wiring, and calibration are unit-specific and must be read from the physical label and calibration records
Flow
5851i standard range context
Brooks 5851i documentation lists any full-scale flow rate from 10 slpm to 100 slpm nitrogen equivalent, with up to 200 slpm hydrogen
Performance
Accuracy
+/-1% full scale including linearity at calibration conditions
Repeatability
0.25% of rate
Response time
Less than 6 seconds response to within 2% of full-scale final value for a 0 to 100% command step
Control range
50:1
Limits
Working pressure
1500 psi / 10.342 MPa maximum
Differential pressure
10 to 50 psi, with higher differential pressures possible depending on gas and range
Operating temperature
5 C to 65 C / 40 F to 150 F
Electrical
Power requirement
+22.5 to 28 Vdc, 370 mA at +28 Vdc
Output signal
0-5 Vdc into 2000 ohms or greater; jumper-selectable 4-20 mAdc or 0-20 mAdc output
Command input
Jumper-selectable 0-5 Vdc input or 4-20 mAdc input
Connector
15-pin DA-15P D-type connector
Connections
Standard gas connections
3/8 inch compression fittings; optional VCO and VCR connections are documented
Historical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offer
Archive records5Tracked historical listing records
Historical median price$1,138.81Based on archived listing records
Recorded price range$1,138.81 - $1,138.81Low to high recorded listing price
Local documents2PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $1,138.81 to $1,138.81. Based on 5 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
BROOKS INSTRUMENT 5851IA1BS2H2DEA MASS FLOW CONTROLLER T258188
Archived listings
Other Part Numbers & Aliases
5851IA1BS2H2DEABrooks 5851IA1BS2H2DEABrooks Instrument 5851IA1BS2H2DEABROOKS INSTRUMENT 5851IA1BS2H2DEA MASS FLOW CONTROLLER T258188
