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『Digital Flow Meter Air: Features of electronic LCD gas regulation tools.』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
Digital Flow Meter for Air: Electronic LCD Gas Regulation Features
Silver Instruments digital air flow meters give you direct mass flow reading on a backlit LCD display. No need for separate pressure or temperature compensation. The integrated regulation valve lets you control air or gas flow from the meter itself.
These meters work on thermal mass or vortex principles and suit compressed air, nitrogen, oxygen, and other industrial gases. You see instant flow rate in kg/h or Nm3/h and totalized flow on the screen.
Our digital gas flow meters come with electronic LCD displays that show real time data at a glance. The display rotates 90 degrees so you can read it whether the meter mounts in a horizontal or vertical pipe run. Many models include a built in needle valve or an electronic actuator for flow adjustment. This turns the meter into a complete regulation tool for air and gas lines.
Typical accuracy is plus minus 1.5 percent of reading for thermal mass types. Measuring range starts from 0.1 Nm/s velocity, which equals a few liters per minute in a DN15 pipe. You can measure up to 100 Nm/s for high speed compressed air lines. The standard sensor works up to 150 degrees Celsius and 1.6 MPa pressure. For higher temperatures, Silver Instruments offers remote style sensors rated for 350 degrees Celsius.
Here is the thing. Many customers ask us why they should replace a simple rotameter with a digital air flow meter. The answer is data. A rotameter gives you a ballpark reading that depends on your eye and room lighting. A digital meter stores totalized flow, outputs 4-20 mA HART or RS485 Modbus, and triggers alarms if flow drops below a set point. You can trend air consumption over a week and find leaks. That alone pays for the meter in a few months.
We have seen this on customer sites many times. Last year a paint manufacturer in Vietnam asked us to help monitor compressed air usage in their mixing vessels. They installed Silver Instruments inline thermal mass flow meters with LCD and manual regulating valves. After one month they detected a 15 percent drop in total air consumption simply by shutting off idle branches during breaks. The payback period was less than three months.
For applications that need active flow control, you can choose an electronic LCD gas regulation tool with an integrated proportional valve. The meter receives a set point from a PLC or a local keypad. The onboard PID controller drives the valve to maintain the flow regardless of upstream pressure swings. This is common for laboratory gas supply, burner air control, and aeration systems in fish farms.
When you contact Silver Instruments for a quote, please include your gas type, pressure in bar, temperature in degrees Celsius, pipe size like DN25 or DN50, and the required flow range. Our engineers will propose a digital meter with the right sensor material and valve configuration. Reach us anytime via email [email protected], phone +86-25-68650347, or WhatsApp +86-25-52155837. You can also add our WeChat at +86 15365082610 for quick questions.
Key Features of Silver Instruments Digital Air Flow Meters
Bright LCD display with four line data. You can view mass flow rate, total flow, gas temperature, and alarm status all on one screen. The backlight helps in dark compressor rooms.
Thermal mass or vortex sensing. For dry air and clean gases, thermal mass sensors offer direct mass measurement with no moving parts. For wet gases or mixed flows, vortex meters with integrated temperature and pressure sensors compute mass flow via compensation.
Fast response time. The sensor updates readings every 0.5 second. This catches flow peaks that dial gauges miss.
Compact and rugged. The housing is anodized aluminum with IP65 protection. It survives splashes in food plants and dust in cement works. Process connections come in NPT, BSP, or flange types. Standard pipe sizes range from DN15 to DN200.
Frequently Asked Questions
Which gases can the digital flow meter measure? The meter measures compressed air, nitrogen, oxygen, argon, carbon dioxide, and natural gas. For corrosive gases like chlorine or sulfur dioxide, Silver Instruments provides Hastelloy wetted parts.
Do I need temperature and pressure compensation? For thermal mass sensors, no. They output mass flow directly. For vortex meters, yes, but our integral models include a PT100 and a pressure sensor so the LCD shows compensated mass flow automatically.
How do I adjust the flow? If you selected a model with a manual regulating valve, turn the knob while watching the LCD. For motorized versions, set the desired flow value on the display or via the RS485 network.
What output signals are available? The standard model gives you 4-20 mA HART and two pulse or alarm outputs. RS485 Modbus RTU is a common add on. Some customers also request M-Bus for building management systems.
How can I get a price? Send your gas type, pressure, temperature, pipe size, and flow range to [email protected]. Tell us if you need a manual or automatic regulating valve. We reply with a quotation and data sheet within one working day.