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High Accuracy Flowmeter Model FM-1050 Series (150 mm)

Description Matheson's FM-1050 Series Flowmeters provide the most accurate indication and precise control of fluids available for a wide range of applications. This versatile meter is functionally and dimensionally interchangeable with other current designs while incorporating many innovative features.  All FM-1050 Series glass metering tubes have integral float guides to assure a guaranteed ±5% (±1% with optional calibration) of full scale accuracy. Both glass and stainless steel floats are included. The meters are available in a range of 150mm reference indicating scales. Be sure to request calibration data for the gas(es) you will be measuring.  Standard with this series is the uniquely designed Tube Cube®. The "cube," a unitized tube holder, aligns the tube quickly and easily for simple tube installation or replacement. The Tube Cube® provides protection during handling, reducing chipped tube ends, broken tubes and misalignment. The 1.5 X scale magnification lens allows for a more accurate reading. End seals in the FM-1050 are direct acting and nonrotating for fast alignment and convenient service accesss.  FM1050 There are also three valve options available: No valve for those who just want indication Utility (six-turn) valve for those who desire control as well as indication High accuracy (fifteen-turn) valve, for very precise control and repeatability   Design Features High resolution 150mm scale length Precision tapered, fluted metering tube Low pressure drop for increased available flow rates at low feed pressures Standard front panel mounting requires minimum hardware --- easy installation, quick access Available utility and high precision metering valves do not require special fittings Simplified, direct acting, nonrotating compression plug for quick and easy tube sealing Specifications Pressure Rating: 250 psig maximum Temperature Rating: 250ºF maximum Accuracy: ±5% of full scale flow rate Optional Accuracies: ±1% and 3% of full scale for reference scales only Repeatability: 0.25% of scale reading Range: 10 to 1, i.e., 100% to 10% of full scale Scale Readings: mm or linear flow with conversion curves and/or factors. Special direct reading scales available Shipping Weight: 1 lb

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Materials of Construction Wetted End Blocks, Fittings and Internal Parts: Anodized aluminum, brass, 316 stainless steel, Kynar®or Monel® Seal Materials: Buna-N or Viton --- standard; EPR, Kalrez or Teflon  --- optional Side Plates Painted or anodized aluminum Metering Tube: Borosilicate glass enclosed in Tube Cube® holder Piping Connections Aluminum, brass, 316 stainless steel or Monel 1/8" female NPT horizontal on inlet and outlet (see Accessories for optional connections). Float Materials: Black glass and 316 stainless steel --- standard; sapphire, Carboloy or Tantalum --- optional Scale: Ceramic ink on glass tube,  length 150mm Flow Tube Capacities for FM-1050 Series Flowmeters, Reference Scales Tube No. Float Material CO2 Carbon Dioxide (SCCM) AR Argon (SCCM) O2 Oxygen (SCCM) Air (SCCM) N2 Nitrogen (SCCM) Natural Gas (SCCM) He Helium (SCCM) H2 Hydrogen (SCCM) Utility Valve Size HA Valve Size E910* Glass 0.34-108 0.23-88 0.25-97 0.13-104 0.29-108 0.47-162 0.26-144 0.56-269 7 1 E100 Glass & Stainless Steel 6.8-200 4.6-140 5.2-145 6-150 6.5-175 9-270 5.3-160 11.7-360 7 2 E200 Glass & Stainless Steel 11-280 7-220 8-240 10-270 10.5-275 14.5-410 9-260 19-560 7 2 E300 Glass & Stainless Steel 36-750 32-690 35-770 38-840 39-850 56-1180 47-1350 99-2500 7 3 E406 Glass & Stainless Steel 72-1450 75-1490 83-1660 88-1800 90-1850 111-2430 163-3680 278-6509 7 4     (SLPM) (SLPM) (SLPM) (SLPM) (SLPM) (SLPM) (SLPM) (SLPM)     E500 Glass & Stainless Steel 0.22-4.4 0.21-4.13 0.24-4.69 0.23-4.6 0.25-5 0.35-6.9 0.51-10.4 0.81-16.2 8 5 E606 Glass & Stainless Steel 0.34-6.6 0.34-6.7 0.38-7.4 0.4-7.6 0.42-7.9 0.53-10 0.81-16.5 1.3-26.4 8 5 E700 Glass & Stainless Steel 0.77-14.4 0.76-14.3 0.85-16.1 0.88-16 0.91-17.2 1.26-22.6 2-39.8 3.09-59.6 9 6 E800 Glass & Stainless Steel 2.05-37.4 2.06-38.1 2.32-43.1 2.4-44 2.47-46 3.21-59.3 5.71-110.7 8.6-161.1 9 6 All flow rates are at 70ºF and 14.7 psia NOTE: Reference tubes are supplied with correlation charts for air and water flow rates at STP. If you require a correlation chart for other gases or liquids, or at pressures or temperatures other than standard, please indicate such when ordering. *0-100 calibrated correlated reference tube scale only Ordering Information Model Series Number of Metering Tubes   End Blocks/ Seal Material Valve Types Connections Accessories Connection Orientation   Flow Tube (Capacities) — —     To build a Rotometer Part Number, use our Rotometer Model Number Builder.

Page 8 Model Number Generator for FM-1050 Series Glass Tube Flowmeters MODEL SERIES E = Model FM-1050 Glass Tube Flowmeter with 150mm tube VALVE TYPES A= Utility Valve on Inlet B= Utility Valve on Outlet C = High Accuracy Valve on Inlet D = High Accuracy Valve on Outlet G = Valve Plug on Inlet H = Valve Plug on Outlet K = Valve Cavity only Y = No Valve/No Plug ACCESSORIES 0 None 1 = Bezel & Bracket - Clear Anodized Aluminum 5 = Base Plate Assembly 7 = Bezel & Bracket -Black Anodized Aluminum 9 = Clean for Oxygen Service Z = ±1% Accuracy (Full Scale) NUMBER OF METERING TUBES 1 = Single Tube Unit 2 = Two Tube Unit 3 = Three Tube Unit 4 = Four Tube Unit END BLOCKS/SEAL MATERIAL 1 = Aluminum with Buna-N Seals   3 = Chrome Plated Brass with Buna-N Seals 4 = 316 Stainless Steel with Viton® Seals 5 = Monel® with Viton Seals  6 = 316 Stainless Steel with Teflon® Seals 7 = Monel with Teflon Seals A = Aluminum with Viton Seals B = Chrome Plated Brass with Viton Seals D = 316 Stainless Steel with Buna-N Seals E = 316 Stainless Steel with EPR Seals F = Monel with Buna-N Seals K = Kynar® with Viton Seals  L = Kynar with EPR Seals N= 316 Stainless Steel with Kalrez® Seals CONNECTION ORIENTATION 1 = Back In and Back Out CONNECTIONS 1 = 1/8" NPT Female 2 = 1/4" NPT Female 3 = 1/8" Tube 4 = 1/4" Tube 5 = 1/8" Hose 6 = 1/4" Hose (3/16"-3/8" Hose Tapered) D = 1/8" NPT Inlet & 1/4" Hose Outlet E = 1/8" NPT Inlet & 1/4" Tube Outlet H = 1/8" Tube Inlet & 1/4" Tube Outlet FLOW TUBE (CAPACITIES) EXXX = See Capacity Table For FM-1050 Series Flowmeters   These are Reference Scale Flowmeters. Be sure to request calibration data for the gas(es) you will be measuring. FM-1050 Series (150mm) Flowmeter Dimensions