『Micro Flow Mass Flow Meter for Low Flow Rates』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
Micro Flow Mass Flow Meter for Low Flow Rates
Quick Answer: For flow rates below 50 kg/h you need a Coriolis micro mass flow meter. Silver Instruments supplies meters that measure mass directly from 0.05 kg/h up to 100 kg/h with 0.2 percent accuracy and multi-variable output. Send us your fluid name, flow range, pressure, temperature and pipe size and we will return a price within one working day.
When a Standard Meter Cannot Cope
Electromagnetic and turbine meters lose accuracy at very low velocities. Variable area meters need constant recalibration. A micro flow Coriolis meter solves this. It does not care about Reynolds number or flow profile. The meter measures mass directly. One sensor replaces three separate devices. That means fewer spares and less wiring.
A Coriolis Meter Built for Micro Flow
Silver Automation Instruments builds micro mass flow meters with wetted part sizes from DN2 to DN6. Common process connections are 1/4 inch NPT, 1/2 inch NPT or Tri-Clamp. The measuring tube vibrates at high frequency. Mass flow, density and temperature come out over a single 4-20 mA HART loop, pulse output or RS485 Modbus. You get three variables from one opening on the pipe.
Here is the thing. Because mass is measured directly you do not correct for temperature, pressure or viscosity swings. A gas flow of 0.5 kg/h reads just as stable as a liquid flow of 0.5 kg/h. The density measurement also acts as a real-time quality check. A food additive plant in Thailand used this feature to catch a wrong batch of concentrated flavour within seconds.
Specifications That Engineers Ask For
Typical specifications for a Silver Instruments micro flow mass flow meter include
Flow range liquid 0.05 kg/h to 100 kg/h
Flow range gas 0.1 kg/h to 30 kg/h
Accuracy plus minus 0.2 percent of rate
Repeatability better than 0.05 percent of rate
Wetted materials 316L stainless steel, Hastelloy C22 optional
Process temperature minus 40 degrees Celsius to plus 200 degrees Celsius
Housing protection IP66, NEMA 4X
Certifications ATEX Zone 1 and Zone 2, IECEx, SIL 2 capable
Power supply 24 VDC
Outputs 4-20 mA HART, pulse, RS485 Modbus RTU
Most engineers skip the part where they have to design a flow conditioner. This meter does not need one. The bent twin-tube design is inherently immune to vibration and pipe stress. Our field service teams in Indonesia and Nigeria have mounted these meters directly after a pump discharge elbow without any straighter. Results stayed within published accuracy.
Where Micro Flow Meters Earn Their Keep
Catalyst injection in a Middle East petrochemical plant. A Silver Instruments micro Coriolis meter doses 0.8 kg/h of Ziegler-Natta catalyst into a reactor. The catalyst costs 2000 USD per kilogram. A dosing error of five percent would waste 80 USD an hour. The mass meter holds dosing to within 0.3 percent. That plant ordered six units after the first trial.
Flavour and fragrance dosing in Southeast Asia. A manufacturer in Jakarta needed to inject 1.2 kg/h of vanilla ess
_600x400.jpg)
Marine fuel additive blending. A service company in Cartagena doses fuel additives at 2.5 kg/h into heavy fuel for large vessels. The meter sits in a skid that experiences salt spray and vibration. Silver Instruments supplied a meter with IP66 enclosure and marine-grade stainless steel. After eighteen months the meter still passes its factory calibration check.
Laboratory reactor feed in Mexico. A polymer research lab uses a micro mass meter to feed 0.2 kg/h of a monomer into a bench-top reactor. Density tracking allows them to detect a monomer purity drop before the run starts. They chose our meter because it fits in a fume hood and talks to their PLC via RS485.
Installation and Signal Integration
The meter mounts inline. Orientation does not matter for mass flow but a vertical upflow line keeps the tube always full. The electronics housing can be rotated 360 degrees. On-site wiring is simple. A single twisted pair carries the 4-20 mA signal with HART overlay. With a HART modem you can poll mass flow, density, temperature and diagnostic registers. No second box needed.
How to Get a Quote
We do not publish a generic price list because every low flow application differs. Send us your pressure in bar, temperature in degrees Celsius, pipe size DN, flow range in kg/h and fluid name. Also tell us if the area requires ATEX or IECEx. We will return a firm quotation, lead time and a dimensional drawing within one business day. Reach our engineers directly through the form at flow-meter.com.au.
FAQs About Micro Flow Mass Flow Meters
What is the lowest flow this meter can measure?
For liquids the starting point is 0.05 kg/h. For gas the minimum is 0.1 kg/h. We have tested ours down to 0.02 kg/h with water in the lab but the guaranteed range begins at 0.05 kg/h.
Does viscosity affect the reading?
No. A Coriolis meter measures mass directly. We have supplied units for heavy fuel oil at 700 cP and for polymer melts above 20,000 cP. The mass reading does not drift with viscosity changes.
Can I get ATEX Zone 1 certification for a micro meter?
Yes. Our micro mass flow meters are certified for ATEX Zone 1 and Zone 2, as well as IECEx. The same housing is rated IP66 so it handles washdown environments too.
What communication protocols are included as standard?
Every micro flow meter ships with 4-20 mA HART, pulse output and RS485 Modbus RTU. You get mass flow, density and temperature on all channels simultaneously.
How fast is the response time for dosing control?
The update rate is 5 milliseconds. In batch dosing we have seen valves close within 50 milliseconds after reaching setpoint. This speed makes the meter suitable for filling small containers of 100 grams or less.
Hot Blog
Related AD
