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Low Cost Turbine Flow Meter - Axial Turbine Meter
[ALTM-T]

SMC's low-cost ALTM turbine flow meters are used for the precise measurement of instantaneous flow rates of low-viscosity fluids such as tap and demineralised water, fuels, liquefied gases, light fuel oils, solvents, and pharmaceutical fluids. Turbine flowmeters measure volumetric flow, where fluid passing through the meter body is measured by the mean velocity of the flowing fluid media. Flow rectifiers ensure a laminar flow in the axial direction of the wheel. A low-mass turbine wheel carried concentrically within the meter body is rotated by the fluid. The RPM of the turbine wheel is directly proportional to the mean flow rate within the meter body and directly corresponds to the volumetric flow over a wide range.

Process Connections NPT threads up to 915 psig (63 bar), (ANSI and DIN), flanges for higher pressures
Operating pressure max. 3,600 psig (250 bars)
Process temperature -4 ~ 230 °F (-20 ~ 110 °C)
Flow rates 0.17-1.1 GPM (0.66-4.2 LPM)-smallest size ⅛" (4mm), 175-3,525 GPM (666-13,333 LPM)-largest size 8" (200mm)
Accuracy ±1.0% std; ±0.5% optional
Viscosities 1 to 60 cSt
Material Stainless steel as per DIN (AISI)Body : SS #304 std; SS #316 optionalRotor : 2Cr13 Stainless SteelShaft : Tungsten carbideBearing : Tungsten carbide
LCD display 8 digit totalizer; 4 digits for instantaneous flow rate
Linearization with 10 points
Ambient temperature -40 - 158 °F (-40 - 70 °C)
Frequency output/divider 24 VDC regulated; Ex-versions : 24 VDC,< 25 mA
Frequency output Square-wave pulse w/duty cycle: ≈ 50%
Analog output : 2-wire, 4-20mA Supply voltage
12-24VDC Ex-protection
Optional Enclosure
IP66 Battery-Powered Option
Related Files:
US Catalog
  • High resolution and fast response time; 5 to 50 msec
  • Wide temperature range; -4 ~ 230 °F (-20 ~ 110 °C)
  • Pressures up to 3,600 psig (250 bars) using optional high-pressure flanges
  • Easily cleaned; designed to flush particulates through the meter with the fluid media
  • NPT threaded process connection standard, optional BSP threads & flange connections available
  • Factory calibrated, traceable to NIST
  • Battery-powered display available
  • RS-485 and HART communicaitons available


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