High-pressure flow on offshore oil platforms.Great replacement for glass tube flow meters (same lay length as Sho-Rate Series 1350).Optional alarms, transmitters and limit switch controllers provide added levels of measurement and control.Multiple connection types enable use in multiple location in one plant or process.Compatible with a wide range of liquids and gases.Stainless steel construction and compact size enables easier installation into tight spaces, hazardous environments or remote areas.Engineered for repeatable accuracy in low-flow rate applications with high-pressure or hazardous fluids.Available with 4-20 mA flow signal transmitter, and/or reed switchĪlarm signals or inductive alarms for high/low-flow conditions.Optional accessories include needle valve, flow controllers and alarms.Multiple threaded or flanged connections.Low flow ranges: Up to 100 I/h or 26 gph.Pressure rating: depends on tube size and temperature max.Supply voltage: 10 – 24 Vdc or USB 5 Vdc with limited capability.Flow tube: one piece chemical inert Perfluoroalkoxy (PFA) ID 1/8″ and 1/4″.± 1.0% of reading at calibration temperature standard at 20 ☌ (68 ☏).Configuration and monitoring software includedĬhemical Inert Low Flow Ultrasonic Inline Liquid Flowmeter.Immune for changes of fluid velocity profile and Reynolds number.Bi-directional with indication of positive and negative flow.Process connections: 3/8″ John Guest, 1/2″ NPT or 1/2″ BSPP male.O-ring Viton, Nitrile, EPDM, Silicone or Kalrez.Flow tube materials PEEK® / 316L Stainless Steel or PEEK® / Glass.USB interface for configuration and monitoring.400 HzĪnalogue 0 – 5 / 10 V or 4 – 20 mA – scalable Outputs: Pulse NPN / PNP – to replace pulse flowmeters – max.Pressure rating: 10 bar (145 psi) / 30 bar (435 psi).Repeatability: ± 0.1% over 25 – 100% of the range.Ultra Low and Low Flow Ultrasonic Inline Liquid Flowmeter In practice, this gives the Atrato an excellent immunity to Reynolds number changes and a good high viscosity performance. It is therefore irrelevant whether the fluid velocity profile is fully formed with turbulent flow or completely laminar with a classic parabolic profile. In addition, the sound waves travelling down the tube in the Atrato operating system are symmetrical, and as a result, any changes in the fluid’s velocity profile across the pipe diameter will be averaged out by the signal as it passes from the transmitter to the receiver. As the flow increases, these signals go out of phase, and this phase shift is measured to an accuracy equivalent to 250 picoseconds. This gives a very stable zero flow condition and is the basis of the flowmeter’s high-ratio between minimum and maximum flows. As the system is fully balanced at zero flows, the two signals are identical and cancel each other out. The signal to noise ratio is remarkable, as there is little background noise and high signal strengths. ![]() ![]() The strong radial ultrasonic signal sends symmetrical pulses directly into the tube the sound travelling down the pipe can be considered as a plain wave. The Atrato system of low flow meters uses the well-proven time of flight measuring method, which is far more reliable and accurate than Doppler shift measurement, wherein, reflected signals are required from irregularities in the liquid. The USB interface on two of the three versions permits the user to directly monitor the rate and total on their laptop while also altering some of the operating parameters, such as the pulse resolution and units. Accuracy that is better than ☑.0% of reading.The Atrato is a low-flow sensor that can handle low flows from laminar to turbulent, and is largely immune from viscosity. It is a genuine breakthrough in flowmeter technology! Its rugged, clean bore construction makes the Atrato ideal for a whole range of low flow applications, from setups for research, to industrial installations and applications for chemically challenging liquids. The Atrato inline low-flow flowmeters utilize patented technology, which enables it to operate with excellent accuracy over very wide flow ranges across the whole span. Below are three meters that qualify as low flow as well as a totalizer to indicate total flow and flow rate. Included are flowmeters capable of measuring very low flow, down to 2 ml/min. JLC International is a global distributor of many different kinds of measurement devices from low-flow water sensors to inline flowmeters to transmitters.
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