![]() *** Battery powered flow meters are not available with 4-20mA output or 0-10Vdc ** For controllers, please consult SURE FLOW PRODUCTS ![]() * 0.5% Option not available on 0.5(S)CCM or 100(S)LPM + Flow ranges 14 Gas Selectability without re-calibrtion (with display only)Īnodized AL, 303 and 302 Stainless Steel,Viton®, Silicone RTV, Glass Reinforced Nylon.Accuracy of +/- 1% full scale with optional +/- 0.5% full scale.Typical Low Pressure Drop of 10″ Water Column or better.Response time of 10 milliseconds typical.Full Scale Rangesfrom 0.5(S)CCM to 1000 SLPM+.Outputs for flow and temperature or flow and pressure.Continuous Display of Flow Rate, Pressure, and Temperature – total optional.No Mechanical Moving Parts to Service or Fail.The optional 9-volt battery pack (Series GM-P) makes this unique Mass Flow Meter portable and ideal for as a hand held test and calibration tool. The push button interface allows the user to select from the primary display, the required gas (14 standard gases featured), adjust meter response time, or tare the meter at zero flow. The dynamic display shows mass flow, volumetric flow, temperature, and absolute pressure simultaneously. The unit has an adjustable response time starting from 10 milliseconds. The GM Series addresses the limitations of thermal mass flow technologies, as there is no “Hot Wire” drift. The integral microprocessor provides a software-based STP calculation compensated for pressure and temperature to standard conditions (1 atmosphere 25☌elsius). ![]() The GM Series “NON-THERMAL” Mass Flow Meters use discrete Differential Pressure, Absolute Pressure, and Temperature Sensor measurements within the laminar flow region to determine mass flow. Gas units are available with full-scale flow ranges from 0.5 (S)CCM to 1000 SLPM (2100 SCFH) with related process connection sizes of 1/8, 1/4, 1/2, and 3/4 inch NPTF. These flow meters measure differential pressure within the laminar region, to achieve a turndown ratio better than 100:1 typical. ![]() Differential pressure measurement, across a laminar flow element, results in a flow meter that is inherently linear and accurate. The SURE FLOW PRODUCTS GM Series flow meters use two of the best-studied physical properties of gases to measure flow: Pressure and Viscosity.
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