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Bluetooth Fuel Flow Meter for Real-Time Commercial Vehicle Consumption Logs
Quick Answer: A Bluetooth fuel flow meter from Silver Automation Instruments creates real-time commercial vehicle consumption logs for trucks, vans, gensets, and marine engines. The meter sends live flow rate and total volume data to a phone, tablet, or fleet server through Bluetooth. Send your pressure (bar), temperature (°C), pipe size (DN), and flow range to get a specific quote.
Why Real-Time Consumption Logs Replace Manual Records
Manual fuel logs fail in field operations. A driver writes a number at the end of a shift. The data is often late, missing, or incorrect. Fleet managers in Indonesia and Australia see diesel consumption variance of 5 to 15 percent on commercial trucks. A Bluetooth fuel flow meter removes that gap. It records consumption every 1 to 2 seconds. It logs total liters, flow rate in liters per hour, and fuel temperature.
We have seen this on customer sites many times. A mining contractor in Chile installed meters on 12 service trucks. Fuel theft on the night shift dropped by about 8 percent in the first month. Every engine start and every refueling event had a digital timestamp. Paper sheets disappeared.
Sourcing: Sensor Selection for Diesel, Petrol, and Biodiesel
Most commercial vehicle fuel systems need a positive displacement meter. Oval gear is the common choice for diesel because it handles viscosity from 2 to 5 cP and gives repeatable readings at low flow. Silver Automation Instruments supplies oval gear fuel meters in DN10, DN15, DN20, and DN25 sizes. For small vans and gensets, a DN10 meter covering 2 to 100 liters per hour works well. For large marine engines or mining haul trucks, a DN25 meter can cover 500 to 8000 liters per hour.
Bluetooth output is built into the transmitter. The signal options include Bluetooth 5.0, 4-20 mA HART, pulse, and RS485 Modbus RTU. Power can come from 8 to 30 VDC or from a lithium battery in the transmitter. The meter body material is aluminum or 316 stainless steel. Seals are FKM or PTFE. In practice, diesel and biodiesel blends up to B20 work fine with FKM. Pure biodiesel above B50 may need PTFE. The fuel temperature range is -20 to 80 degree Celsius. The housing is IP66 or IP67. For marine engine rooms or fuel transfer zones, ask for an ATEX Zone 1 certified transmitter.
Installation Details That Decide Data Quality
Install the flow meter after the fuel filter and before the fuel injection pump. Put a strainer or filter upstream if the fuel can carry dirt. Avoid mounting the meter at the highest point of the fuel line. Air bubbles collect there and cause readings to jump. Use a straight run of 5 to 10 pipe diameters before the meter if you have a turbine sensor. Oval gear meters do not need a long straight run but they do need a clean line.
On a common diesel truck, you may need a return line meter. A diesel engine takes more fuel from the tank than it burns. The unused fuel returns to the tank. If you measure only the supply line, the reading will be too high. Some fleets install two meters. One on the supply line and one on the return line. The real consumption is the difference. On newer common rail engines, this matters a lot. Most engineers skip the return line check. That mistake causes
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Data Logging and Fleet Integration
The Bluetooth fuel flow meter can store data locally for 30 to 90 days depending on the logging interval. When a phone connects, the app downloads the records. In many cases, the fleet management system pulls the data through Modbus RTU and pushes it to a cloud dashboard. Silver Automation Instruments does not lock you into one software. The meter gives open data through Bluetooth serial or Modbus. This matters for OEMs building generator controllers or telematics boxes.
A generator rental company in the UAE tested this on 20 diesel gensets. They used a DN15 oval gear meter with Bluetooth and 4-20 mA. The controller logged fuel use by hour and by load. Billing disputes dropped because each site had a clear consumption log. The total cost per genset was lower than a full ultrasonic system.
Common Applications We See
Commercial trucks and buses in Southeast Asia use the meter for fuel audits and driver incentive programs. Marine fishing vessels in Peru install the meter on auxiliary engines to track fuel burn per trip. Mining operations in Chile and Zambia use the meter on service trucks and diesel generators. Food and beverage distributors in Mexico monitor refrigerated truck fuel because the cooling unit has its own consumption profile. These are all 10 to 100 person companies with engine maintenance teams and a clear need for purchase records.
FAQ
Can this meter measure both diesel and petrol? Yes. Select an oval gear meter with aluminum or stainless body and FKM seals. Calibrate for the fuel type you will use. Petrol has lower viscosity than diesel. The reading difference is small if the factory sets the meter for the correct fuel.
Does Bluetooth work in a moving vehicle with vibration? The transmitter is potted and mounted to the meter or a short cable. Bluetooth range is about 10 to 30 meters open line of sight. Inside a metal engine bay, keep the phone within 5 to 10 meters.
How often does the meter need calibration? For diesel fuel measurement on commercial vehicles, check calibration once a year or every 2000 operating hours. If the meter sees dirty fuel or biodiesel, check every 6 months.
What data does the Bluetooth signal send? Flow rate in liters per hour, total consumption in liters, fuel temperature in Celsius, and meter status. Some transmitters also send battery voltage and alarm codes.
Can you supply a full kit for a fleet installation? Yes. Silver Automation Instruments can supply the meter, Bluetooth transmitter, cables, connectors, and a calibration certificate. Send your truck model, engine make, pipe size, and fuel type for a complete bill of materials.
Request a Quote from Silver Automation Instruments
Send us your pressure (bar), temperature (°C), pipe size (DN), and flow range in liters per hour. Include the fuel type and the engine return line arrangement. We will reply with a specific meter model, material list, and price.
Tel: +86-25-68650347
WhatsApp: +86-25-52155837
WeChat: +86 15365082610
Website: flow-meter.com.au