Brooks Instrument MT3750C Ar-Mite Variable Area Flowmeter
About this part
3750CA1A11KEAAAAA0 is a configured Brooks Instrument MT3750C Ar-Mite metal tube variable-area flowmeter identifier. Official Brooks MT3750C documentation identifies the series as a compact armored purge/low-flow metal tube flowmeter for gas or liquid service, and the model-code table decodes this configured code as a 316L stainless steel, size 1, direct-reading gas-scale unit with 1/4 inch NPT female integral horizontal connections, Viton O-rings, an inlet NRS valve, and no electrical output or selected certification/approval option. The observed auction/surplus record additionally describes a Brooks MT 3750 Ar-Mite low-flow armored flowmeter with 1000 PSIG and AR context; those listing details are retained only as observed configuration context and should be checked against the physical unit label and scale
Configurations vary. Verify the exact unit before choosing a replacement.
Application classLife sciences and laboratory automation
CategoryFlow Control
Specifications
Identification
Part identifier
3750CA1A11KEAAAAA0
Series family
Brooks MT3750C Series Ar-Mite metal tube variable-area flowmeters
Base model
3750C - 55 mm armored purge flowmeter
Flow
Measuring principle
Metal tube variable-area flow measurement for low-flow gas or liquid applications depending on scale and ordered configuration
Model code
Material specification
A - 316L stainless steel
Meter size and float
1 - Size 1 with 316L stainless steel float for 316L tube construction
Construction and seals
A - Standard design with Viton O-rings
Connection size and type
1 - 1/4 inch NPT female integral connection
Connection orientation
1 - Horizontal inlet and outlet for threaded connections
Valve configuration
K - NRS valve, size 3 on inlet, typical for sizes 0 and 1
Scale and fluid coding
E - 4 VDI / 5% full-scale direct-reading gas scale
Electrical output
A - None
Alarm relay or transmitter power supply
A - None
Certification or approval option
A - None selected in the model code
Inspection and accessories
Material inspection A, accessory A, and accessory group 2 code 0 indicate no additional inspection, accessory, or second accessory-group option selected in the model code
Series ratings
Flow range boundary
Official MT3750C data sheet lists capacities by meter size and fluid; the exact AR scale range must be read from the unit scale or order records
Pressure and temperature boundary
Official MT3750C data sheet lists standard meters up to 1500 PSIG and 204 C / 400 F maximum fluid temperature, subject to exact construction, elastomer, ambient, approval, and application limits
Installation
Startup caution
Brooks MT3750C manual instructs users to open the valve slowly during startup to avoid flow surge
Observed variants
Stored listing context
Stored and surplus listing evidence describes the unit as a Brooks MT 3750 Ar-Mite low-flow armored flowmeter with AR and 1000 PSIG context; this is listing evidence, not an official model-wide specification
Applications
Application domain
Low-flow gas indication, purge-flow service, gas process service, and industrial/laboratory flow measurement where the physical scale, fluid, pressure, and temperature limits match the application
