Unloading Flow Meter

The unloading flow meter is a portable metering device suitable for multiple petroleum products. This unloading flow meter detects oil temperature, turbine rotation, and liquid level inside the pipe to calculate flow rate and volume in real time, displayed on the digital readout. Equipped with dual handles and quick-connect couplings at both inlet and outlet, it is easy to carry, quick to connect, and simple to operate. An oil sight glass allows visual inspection of fuel condition, and the digital display supports segment recording and total accumulation.

In operation, the unloading flow meter is connected to the discharge port – fuel flows by gravity, passes through the liquid level sensor, and drives the turbine to rotate. The Hall sensor receives the turbine rotation signal, the temperature sensor detects fuel temperature, and the digital display integrates all signals to calculate flow rate and volume in real time.

The parameter is as follow.

Feature

This unloading flow meter consists of the flow meter body, quick-connect couplings, digital display, liquid level sensor, flow guide screen assembly, impeller assembly, temperature sensor, and oil sight glass assembly. The digital display is powered by two rechargeable explosion-proof lithium batteries, rated for approximately 5,000 charge cycles, with a USB Type-C charging port on the side

This unloading flow meter features a portable design with dual handles and quick couplings for easy handling and fast connection. The oil sight glass allows real-time visual inspection of fuel condition. The digital display supports segment recording and total accumulation for various metering needs. Bluetooth and GPS functionality enable data management and device tracking – enabled by default, and automatically disabled when battery drops below 10% to preserve power. Powered by explosion-proof rechargeable batteries with long-lasting performance and convenient charging.

Applications

This unloading flow meter is suitable for unloading kerosene, diesel, gasoline, and blended fuels – ideal for tanker truck offloading, storage tank receiving, and other metering operations.

Installation and Operation

Before installation, check the seals on the quick-connect couplings. Connect the unloading flow meter vertically between the discharge outlet and the delivery hose – ensure the outlet is at the lowest point, with the meter axis at a 15° angle to the horizontal. Inlet connection length ≤80mm, hose diameter ≥80mm, hose length ≤8m. After installation, confirm all connections are secure. Reset the unloading flow meter to zero, confirm the indicator light flashes, open the valve to start unloading – the meter will begin measuring immediately. Close the valve after unloading, wait for the reading to stabilize, and save the data. Multiple records can be viewed in the history log.

FAQ – Common Fault Analysis

Q1: Why does the unloading flow meter leak?

A1: Check whether the rubber seals are damaged or aged, and whether the quick-coupling latches are loose. Replace seals or couplings as needed.

Q2: Why is the digital display blank or showing errors?

A2: Check battery level – charge if low. If the issue persists after charging, contact service for inspection.