MEGARF metal tube variable area meters (rotameters) are ideal for high pressure, high temperature and other demanding flow applications where safety is a concern. Features include: globally-recognized approvals for use in hazardous environments, output and digital LCD local display options, multiple process connection options, several available materials of construction for metering of aggressive fluids and corrosion resistance, HART enabled 4-20mA output to provide for remote monitoring and control. The MEGARF’s excellent repeatability makes it a good choice for batching applications. For versions without electronic output, no power supply is required. The MEGARF's low-pressure drop provides additional value by allowing for economical pump selection.

• Versatile design may be used for gas, and liquids
• Wide temperature range from -40 to 350 °C
• High pressure operation up to 420 bar
• Process connections including NPT threads, ANSI flanged, & Tri-Clamp available
• Electronics either intrinsically safe ExiaIICT6, or Ex proof ExdIICT6
• Wide array of materials available including Hastelloy B & C,Ti, Cu, Al, etc..
• PTFE and other liner materials available

Indicator types	Functions	Pictures
M1 Type	Mechanical with pointer display; No power supply;No 4-20mA; Optional flow alarm device; Instantaneous flow or percent-scale value for option.
M3 Type	Digital display, battery powered (service life 6 months); Battery Model No.: ER26500,3.6V,7.5AH,-55℃~85℃. No 4-20mA output; Non-explosion-proof Display the instantaneous and cumulative flow rates; Parameters can be checked or modified by pressing keys on the keyboard;
M4 Type	Digital and pointer display; The pointer indicates instantaneous flow rate and digitally displays instantaneous and accumulated flow rates; Intrinsic safety type ExiaIICT6 for optional; 2-wire 4-20mA (standard), HART (optional); DC24V power supply; 4 keys on the panel which are used to check and modify internal parameters.
M5 Type	Digital and pointer display; Pointer indicates the instantaneous flow rate and digitally displays instantaneous flow rate and accumulated flow rates; Flame-proof ExdⅡCT6 for optional; 2-wire 4-20mA (standard), HART (optional); DC24V power supply; 4 keys on the panel which are used to check and modify internal parameters.