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Flowmeter Kit
Models FM-2000/3000/4000

Description

Versatility combined with portability. Matheson's Flowmeter Kit is a user friendly kit designed to fill your requirements for wide flow ranges of many different gases. The kit contains a flowmeter frame, four 150mm scaled TUBE CUBES™, three valves and a flowmeter stand along with tools for changing the tubes and valves. This allows you to measure ranges from 4 ccm to 50 lpm. We provide calibration curves for air. Other gases available upon request.

Design Features
  • Convenient, easy to use flow measurement
  • Brass construction for non-corrosive gases (FM-3000)
  • Aluminum construction for mildly corrosive gases (FM-2000)
  • Stainless steel construction for corrosive gases (FM-4000)
  • Measure a wide range of flow rates with a single unit
  • TUBE CUBE unitized glass tube holding device
  • High resolution 150mm scale
  • Precision tapered, fluted metering tubes
  • Maximum flow rates ensured by low pressure drop
  • Superior readability is ensured by a reflective, high contrast background and 1.5 X magnification lens
  • Easy installation, quick service access
  • Safety blow-out back panel
  • Portability --- compact, impact resistant carrying case
Specifications

Pressure Rating: 250 psig maximum operating pressure
Temperature Rating: -20ºF to 165ºF
Accuracy: ±5% full scale flow rate
Repeatability: ±0.25% of scale reading
Flow Range: 10 to 1 or greater, i.e., 100% to 10% of full scale
Scale: 0 to 150mm
Calibration Curves: Required to determine flow rate of the media

Materials of Construction


Wetted End Blocks, Fittings and Internal Parts: Anodized aluminum, brass or 316 stainless steel
Non-Wetted Side Plates: Painted or anodized aluminum
Metering Tube: Borosilicate glass enclosed in the patented TUBE CUBE holder
Scale: Ceramic fused on the glass flow tube 0 to 150mm
Inlet and Outlet Connections: 1/4" compression tube fittings of either brass construction for aluminum and brass kits or stainless steel construction for 316 stainless steel kits
Wrenches: 5/32" allen wrench for TUBE CUBE assembly and 1/2"-9/16" open end wrench for valve assembly

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Capacities of Flow Tubes Included
Tube No. Float Material Air Valve Orifice Size
E100 Glass 56ccm 7
Stainless Steel 158ccm
E300 Glass 386ccm 8
Stainless Steel 863ccm
E500 Glass 2.41 lpm 8
Stainless Steel 4.96 lpm
E800 Glass 24.9 lpm 9
Stainless Steel 45.9 lpm

NOTE: The tubes supplied have 150mm reference scales. Matheson provides calibration curves for air at 70ºF and 14.7 psia. Be sure to request calibration curves for the gases you will be measuring.

Packaged in the cushioned durable carrying case are the following:

  • Flowmeter frame
  • Four TUBE CUBES to cover the entire range of flows that can be measured with a flowmeter of this size
  • A bench stand to enhance the ease of use of the flowmeter
  • Three control valves so that precise control is maintained over the flow ranges which can be measured
  • Tools to facilitate the assembly and disassembly of the various kit components
  • An instruction manual which makes this entire package very "user friendly"
Ordering Information

Model Flowmeter and Valves Wetted Material Seals
FM-2000 Aluminum Buna-N
FM-3000 Brass Buna-N
FM-4000 316 SS Viton-A®