Bitzer oil flow sensorIt is a precision detection equipment specifically designed for real-time monitoring and measurement of various types of oil flow (such as diesel, gasoline, lubricating oil, hydraulic oil, etc.), widely used in the fields of petrochemicals, automotive industry, engineering machinery, energy metering, etc. Its core function is to convert the flow signal of oil into an electrical signal that can be collected and analyzed, providing data support for system control, energy management, and fault diagnosis.
Oil flow sensors typically consist of three parts: a detection unit, a signal processing unit, and an output interface. The detection unit is responsible for capturing changes in oil flow (such as turbine rotation and ultrasonic signals), while the signal processing unit filters, amplifies, and converts the raw signals. The output interface transmits data to the controller, display screen, or upper computer system in the form of analog signals (4-20mA current) or digital signals (RS485, CAN bus) for real-time monitoring and data storage.
Bitzer oil flow sensorThe main characteristics are as follows:
1. High reliability and long lifespan
Features: Designed for continuous and long-term operation, using sturdy structures and durable materials.
Advantages: It can work stably in high vibration and impact industrial or mobile equipment environments, with low failure rates and minimal maintenance requirements, making it a "sentinel" to ensure the safe operation of the system.
2. Excellent resistance to media
Features: The moisture sensitive components of the sensor, such as the housing, seals, and measuring elements, are made of materials compatible with the oil.
Materials: commonly used stainless steel (304, 316), brass, special engineering plastics (PPS, PEEK).
Seal: Use FKM/Viton fluororubber ®）、 Nitrile rubber (NBR) and other oil resistant sealing rings.
Advantages: It can resist corrosion, swelling, and aging of hydraulic oil, lubricating oil, fuel and other media for a long time, ensuring stable performance and service life.
3. Wide working temperature range
Features: The design has a wide working temperature range, usually up to -40 ° C to+120 ° C or higher (such as+150 ° C).
Advantages: Adapt to extreme temperature environments ranging from cold outdoor to high-temperature engine compartments, ensuring normal operation during both cold start and high-temperature operation.
4. Strong anti pollution ability
Characteristics: Oil often contains pollutants such as moisture, metal particles, dust, etc.
Design: Sensor structure design (such as turbine type, thermal type, or piston type with filter screen without moving parts) can effectively resist pollution, prevent blockage or jamming.
Advantage: It can still operate reliably in systems with low oil cleanliness, reducing maintenance.
5. Multiple measurement principles and output signals
Common measurement principles:
Mechanical (piston/blade): simple structure, low cost, but subject to wear and tear.
Turbo type: High precision, fast response, suitable for cleaning oil.
Thermal diffusion: No moving parts, high reliability, can measure extremely low flow rates, but sensitive to changes in oil temperature.
Ultrasonic type: non-contact measurement, high accuracy, does not hinder fluid flow, but has a higher cost.
Diverse output signals:
Switching output: the most common. When the flow rate is lower than the set threshold (such as zero flow or low flow), the contact action (normally open/normally closed) is used for fault alarm (such as lubrication failure, oil circuit blockage).
Analog output: Provides 4-20mA or 0-10V signals proportional to the flow rate for continuous monitoring of flow rate.
Pulse output: Output a pulse signal proportional to the flow rate, which can be used for flow accumulation.
6. Easy to install and integrate
Features: Standard threaded interfaces (such as G1/4 ', G1/2', NPT) or flange connections are usually used for easy installation in oil pipelines.
Advantages: Easy installation, can be directly integrated into hydraulic blocks or piping systems.
7. Security protection function (core application)
Characteristics: The core function of many oil flow sensors is to serve as a safety interlock device.
Application: In large machinery such as wind turbines, injection molding machines, and machine tools, sensor signals are connected to PLC or control systems. The main motor or actuator is only allowed to start when normal flow of lubricating oil or hydraulic oil is detected. Once the flow rate is abnormal (such as pump failure, oil circuit blockage, low oil level), an alarm or shutdown signal should be immediately issued to prevent serious damage to the equipment due to dry friction.
8. Visual indication (some models)
Features: Some sensors are equipped with visual flow indicators (such as piston type with observation window).
Advantage: Operators can directly visually inspect the oil flow status, facilitating quick on-site diagnosis.