MF50I is a Brooks Instrument Mf50i-family mass flow controller identifier. Official Brooks field-service literature lists MF50I/MF60I in the supported Mf Series calibration-service family, and Brooks Mf Series data-sheet evidence identifies Mf50i as an industrial mass flow controller with NEMA 4X/IP66 packaging. Stored Sonisys auction records show 5, 7, and 10 SLM configured examples, but gas, full-scale calibration, fittings, signal option, valve behavior, and approval status should be verified from the complete configured code and physical unit label
Unit-specific configuration
Observed configuration
Historical listing records identify this part as 10 SLM. 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.
Application classIndustrial automation and process equipment
CategoryFlow Control
Specifications
Identification
Part identifier
MF50I
Model family
Brooks Instrument Mf50i / MF50I Mf Series industrial mass flow controller family
Device type
Industrial gas mass flow controller with integral control valve
Function
Primary function
Measures gas mass flow and controls flow to a remote command setpoint
Construction
Enclosure context
Brooks Mf Series data-sheet evidence identifies NEMA 4X and IP66 watertight industrial packaging for the Mf Series
Flow
MF50 model flow-range context
Brooks Mf Series data-sheet evidence places Mf50 in the 0.003 to 30 slpm nitrogen-equivalent model range; exact gas and full-scale calibration remain unit-specific
Calibration-service family context
Brooks field-service literature lists MF50I/MF60I with the MF51I/MF61I and MF53I/MF63I family for 50 SCCM to 1000 SLPM service-calibration coverage depending on model and gas
Performance
Accuracy context
Brooks Mf Series data-sheet evidence states +/-1% full scale including linearity at calibrated conditions, with +/-1.5% full scale for Mf50 and Mf60 flow ranges greater than 20 slpm
Repeatability context
Brooks Mf Series data-sheet evidence states 0.25% of rate repeatability
Response-time context
Brooks Mf Series data-sheet evidence states less than 6 seconds to within 2% of full-scale final value for a 0 to 100% command change
Pressure
Mf50 operating-pressure context
Brooks Mf Series data-sheet evidence lists Mf50 maximum pressure as 1500 psi / 100 bar and Mf50 controller pressure drop as 5 to 50 psid
Environmental
Operating temperature context
Brooks Mf Series data-sheet evidence lists ambient/gas temperature from 41 F to 149 F / 5 C to 65 C
Electrical
Mf50 power context
Brooks Mf Series data-sheet evidence lists Mf50 at 15 to 28 Vdc, 240 mA at 15 Vdc and 370 mA at 28 Vdc
Signal context
Brooks Mf Series data-sheet evidence describes 4-20 mA or 0-5 Vdc command input and 0/4-20 mA or 0-5 Vdc flow output options depending on configuration
Mechanical
Mf50 process-connection context
Brooks Mf Series data-sheet evidence lists Mf50 controller connection options including 9/16-18 UNF, 1/4 inch tube compression, 1/8 inch tube compression, 1/4 inch VCR, 1/4 inch VCO, 1/4 inch NPT, and 6 mm tube compression
Configuration
Configured-unit rule
Gas, full-scale flow, calibration conditions, process connection, signal option, seal material, valve behavior, and approval status vary by configured code and physical unit label
Observed configuration
Stored listing context
Stored Sonisys auction records for this identifier show 5 SLM, 7 SLM, and 10 SLM examples without verified gas; this is observed listing context, not an official model-wide specification
Part Photos
0 images
Historical archive images for identification, labels, connectors, and condition reference, not current inventory.
Historical Listings & Prices
Historical listing data, not a current offer
Archive records4Tracked historical listing records
Historical median price$213.81Based on archived listing records
Recorded price range$213.81 - $213.81Low to high recorded listing price
Local documents0PDF copies available from Sonisys
Recorded price context
The typical recorded price range is $213.81 to $213.81. Based on 4 archived listing records; not a current offer, appraisal, or confirmed sale price.
View archived listing titles
Brooks MF Series Smart Mass Flow Controller MF50I, 10 SLPM with Warranty
Brooks MF Series Smart Mass Flow Controller MF50I, 7 SLPM with Warranty
Brooks MF Series 5 SLPM Smart Mass Flow Controller MF50I with Warranty
