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Digital Flow Meter Gauge: Electronic Backlit LCD System Pressure Readouts
Quick Answer: Silver Automation Instruments supplies digital flow meter gauges with electronic backlit LCD screens for system pressure readouts, flow rate, and total flow on one display. These units suit water lines, fuel oil skids, chemical dosing, compressed air, and steam systems from DN10 to DN300. Send us your pressure in bar, temperature in °C, pipe size in DN, and flow range for a fixed quote.
Most engineers choose this type of gauge when a standard mechanical meter cannot show live system pressure. A backlit LCD gives clear readings in dark pump rooms or outdoor packaged skids. Silver Automation Instruments builds these gauges for industrial buyers in Southeast Asia, Oceania, Latin America, Africa, and the Middle East.
How a Digital Flow Meter Gauge with Backlit LCD Works
The flow element sends a signal to an electronic board. A pressure transmitter reads system pressure from the pipe. The LCD shows both values at the same time. In practice this removes the need for a separate pressure gauge and a separate flow display.
A typical configuration includes a flow sensor, a local backlit LCD display, and a 4 to 20 mA HART output. The pressure input can come from an external pressure transmitter or from an integrated pressure tap. Some models also output RS485 Modbus RTU for plant control systems.
Key Specifications and Model Pairing
For water and wastewater lines, a SIL-MAG electromagnetic flow meter with backlit LCD works well. It covers DN15 to DN300, pressure up to 16 bar, temperature up to 80 °C, and accuracy of 0.5 percent. Pair it with a SIL-PT pressure transmitter with 4 to 20 mA output and a 0 to 10 bar or 0 to 25 bar range.
For fuel oil, diesel, and lubricating oil, an oval gear flow meter with LCD readout is common. Silver Automation Instruments supplies oval gear meters from DN10 to DN100. A customer in Vietnam ordered 12 oval gear meters with backlit LCD displays for diesel generator test benches. The pressure readout was set at 0 to 10 bar.
For gas and compressed air, a thermal mass flow meter with integrated backlit LCD and pressure input gives direct mass flow in kg/h. Typical ranges cover 0 to 200 kg/h for air up to DN80. For steam, a vortex flow meter with pressure compensation shows mass flow and pressure on one screen.
Why System Pressure Readouts Matter in the Field
But flow readings without pressure can mislead operators. A drop in system pressure often explains a lower flow rate. A clogged filter, a partially closed valve, or a failing pump will show up as pressure change first. With a backlit LCD flow meter gauge, the operator sees flow and pressure side by side.
We have seen this on customer sites many times. A water treatment plant in the Philippines noticed a 0.6 bar pressure drop before flow
Installation Notes
Install the flow meter with enough straight pipe upstream and downstream. For electromagnetic and vortex meters, follow the straight run in the manual. Mount the pressure transmitter near the flow meter on the same pipe section. Because turbulence affects readings, do not install the pressure tap directly after a pump or elbow.
Use a 24 V DC power supply for most backlit LCD units. If the panel needs mains power, select a model with 85 to 265 V AC input. For outdoor installations in the Middle East or Africa, choose IP67 or IP68 housing and a UV resistant LCD cover. In hazardous areas, request ATEX Zone 1 certification.
Customer Example: Paint Manufacturer in Southeast Asia
Last year a paint manufacturer in Indonesia needed a replacement for two separate panel meters. Solvent flow had to be checked against system pressure during batching. Silver Automation Instruments supplied one SIL-MAG electromagnetic flow meter with a backlit LCD and a pressure input. The display showed flow in liters per minute and pressure in bar. The plant then wired the 4 to 20 mA HART output to a paperless recorder.
Five Frequently Asked Questions
Q: Can the backlit LCD show total flow and pressure at the same time?
A: Yes. The display can show total flow, instantaneous flow rate, pressure, and temperature. You can configure the screen to rotate values or hold one value on the home screen.
Q: What is the pressure input range for this digital flow meter gauge?
A: The pressure input depends on the transmitter. Common ranges are 0 to 10 bar, 0 to 25 bar, and 0 to 100 bar. Tell us your working pressure and we match the right SIL-PT transmitter.
Q: Which flow meter types work with the backlit LCD pressure readout?
A: Electromagnetic, oval gear, turbine, vortex, and thermal mass flow meters can all be paired with a pressure input. For conductive liquids, use electromagnetic. For oils, use oval gear. For gas, use thermal mass or vortex.
Q: Can this unit send data to a PLC or SCADA system?
A: Yes. Most models include 4 to 20 mA HART, pulse output, or RS485 Modbus RTU. State your control system brand when you ask for a quote.
Q: What is the lead time for a digital flow meter gauge with backlit LCD and pressure readout?
A: Standard models ship in 7 to 15 working days from our factory. Custom ranges and ATEX versions take longer. Ask for current stock status by WhatsApp or WeChat.
Contact Silver Automation Instruments
So send us your process details and get a fixed price. State the pipe size in DN, flow range, pressure in bar, temperature in °C, and fluid name.
Tel: +86-135-1213-1526
WhatsApp: 86-135-12131526
WeChat: +86 13512131526
Website: flow-meter.com.au