Bombay Instrument Mfg. Co.

Model No                :  BI-500

Flow range            :  Please confirm 
Service                   :   Gas 

Power Supply           :  DC24V/6W

Range ratio               :  1:100

Valve type                :   Normally closed type

Temp.                       :   -10 to 55 ^OC

Humidity                  :   <95%RH (no frost, no ice)

Response time          :   <50 mS

Output mode            :   4-20mA or 1-5V

Communication method : RS 485 (Modbus Rtu protocol)

Class of protection   :     IP40

Make                        :  BIMCO-Bombay Instrument

Mass Flow Controller

Model No                :    BMF-570-CV

Flow Range             :     0-5 g/s 

Line Size                 :    1/2"

Usage/Application    :    Solenoid Valve

Service                    :     H2 or Air

Make                       :     BIMCO - Bombay Instrument

Model No                :  BI-500

Flow range            :  Please confirm 
Service                   :   Gas 

Power Supply           :  DC24V/6W

Range ratio               :  1:100

Valve type                :   Normally closed type

Temp.                       :   -10 to 55 ^OC

Humidity                  :   <95%RH (no frost, no ice)

Response time          :   <50 mS

Output mode            :   4-20mA or 1-5V

Communication method : RS 485 (Modbus Rtu protocol)

Class of protection   :     IP40

Make                        :  BIMCO-Bombay Instrument

• Components: An MFC consists of a mass flow sensor, a proportional control valve, and internal circuitry/electronics (often with a built-in PID controller).
• Operating Principle: The sensor measures the actual mass flow rate. This measurement is continuously compared to a desired flow rate setpoint (an electrical signal from an operator or external system). If there's a difference, the control valve's position is adjusted automatically via a feedback loop to match the actual flow to the setpoint, ensuring stability and accuracy.
• Mass vs. Volumetric Flow: Unlike volumetric flow, which changes with temperature and pressure fluctuations, mass flow measurements remain consistent. This provides more accurate and repeatable results for industrial processes.
• Types: MFCs can be analog or digital. Digital controllers are often more flexible, able to control multiple gases with onboard databases and offering a range of communication interfaces (RS-232, RS-485, etc.).
• Sensor Technologies: Common sensor types include thermal (capillary or inline), Coriolis, and differential pressure-based technologies, each suited for different applications and fluids.