Diesel turbine flowmeter

Diesel turbine flowmeterThe working principle of the sensor is that the fluid flows through the sensor housing. Due to the angle between the blades of the impeller and the flow direction, the impulse of the fluid causes the blades to have a rotational torque. After overcoming the friction torque and fluid resistance, the blades rotate. After the torque is balanced, the speed is stable. Under certain conditions, the speed is proportional to the flow rate. Due to the magnetic conductivity of the blades, they are in the magnetic field of the signal detector (composed of magnetic steel and coils). The rotating blades cut the magnetic field lines, periodically changing the magnetic flux of the coil, so that electrical pulse signals are induced at both ends of the coil. This signal is amplified and shaped by an amplifier to form a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to a display instrument remotely to display the instantaneous flow rate and cumulative amount of the fluid. Within a certain flow range, the pulse frequency f is proportional to the instantaneous flow rate Q of the fluid flowing through the sensor, and the flow equation is Q=3600 × f/k

Where:
F - Pulse frequency [Hz];
K - the instrument coefficient of the sensor [1/m], given by the calibration sheet. If using [1/L] as the unit, Q=3.6 × f/k
Q - instantaneous flow rate of fluid (under working conditions) [m/h];
3600- Conversion factor.
The instrument coefficient of each sensor is filled in the calibration certificate by the manufacturer, and the k value is set in the matching display instrument to display the instantaneous flow rate and cumulative total amount.

Diesel turbine flowmeterProduct Features:
Low lower limit flow rate, wide measurement range
◆ Low pressure loss, impeller with anti-corrosion function
◆ Strong resistance to magnetic interference and vibration, reliable performance, and long lifespan
◆ Strong overall functionality and low power consumption
Intelligent display with non-linear compensation function
The instrument coefficient can be set online through buttons and displayed on the LCD screen
◆ Adopting EEPROM for cumulative flow and instrument coefficient protection up to ten years

Features:
◆ With small size, light weight, intuitive and clear display readings
◆ High reliability, unaffected by external power sources, and resistant to lightning strikes
◆ Adopting high-performance MCU central processing unit to complete data acquisition, processing, display and output, cumulative flow instantaneous flow display on the same screen, convenient human-machine interface implementation
Easy to repair, with a self rectifying structure, small and lightweight, simple structure, can be assembled and disassembled in a short time, and easy internal cleaning
◆ Strong resistance to magnetic interference and vibration, reliable performance, and long lifespan
◆ Corrosion resistant, suitable for acidic and alkaline solutions

Technical Quantity:
◆ Nominal diameter: Pipeline type: DN4~DN200
Insertion type: DN100~DN2000
Accuracy level: Pipeline type: ± 0.2 level, ± 0.5 level, ± 1.0 level
Insertion type: ± 1.5 level, ± 2.5 level, high-precision up to 0.2 level
◆ Environmental temperature: -20 ℃~50 ℃
◆ Medium temperature: Measuring liquid: -20 ℃~120 ℃
Power supply: DC5-24V, standard 3V lithium battery installed inside the instrument can be continuously used for more than eight years,
Atmospheric pressure: 86KPa~106KPa
◆ Nominal pressure: 1.6 Mpa, 2.5 Mpa, 6.4 Mpa, 25 Mpa
Explosion proof grade: ExdIIBT4
◆ Connection methods: threaded connection, flange clamping, flange connection, plug-in type, etc