CR-606 fuel level transmitter (sensor) working principle
The sensing part of the CR-606 series capacitive fuel level sensor is a coaxial container. When the fuel enters the container, the capacitance changes between the sensor housing and the sensing electrode. This change is converted by the circuit and is accurate. Linear and temperature compensated, output 4-20mA standard signal is supplied to the display instrument.
CR-606 fuel level transmitter (sensor) for occasions
CR-6062 compact fuel level transmitter (sensor) industrial grade, suitable for 5MPA or below, temperature below 200, viscosity is not high fuel measurement, can be added with various protocols of communication
CR-6061 automotive-specific fuel level transmitter (sensor) is suitable for the measurement of various fuel under normal temperature and pressure. The output damping time is adjustable from 30 to 180s. It can be equipped with 485 communication.
CR-6062 standard fuel level transmitter (sensor) industrial grade, suitable for measurement below 5MPA, viscous fuel quality below 200, can be added with various protocol communication
CR-6063 high temperature and high pressure type fuel level transmitter (sensor) industrial grade, suitable for below 32MPA, temperature measurement below 250, can be attached to various protocols
CR-6061 universal fuel level transmitter (sensor) is suitable for measuring various fuel and hydraulic fuel under normal temperature and pressure, and can be equipped with 485 communication.
CR 6032 series intelligent boiler level sensor is based on capacitance measurement principle. It uses positron-emission tomography technology to measure and analyze the dielectric constant of liquid and vapor medium,temperature,pressure and other parameters in the cylinder, After the microprocessor processing, the output conforms to the industrial standard 4-20mA current signal,RS485 digital signal can also be output.
Liquid level sensor compensates automatically in real time during operation without the affect of temperature, pressure, medium changes, good long-term stability. It is a full working condition, high cost performance drum level sensor which is suitable for boiler drum of generator set water level measurement like power plant, steel plant, cement plant.
Technical features
Two-wire system, 4-20mA current loop, with a resolution of 0.1 mm and accuracy higher than 1%.
With tomographic, it can make continuous measurement and compensation for dielectric constant variation of liquid and vapor mediums.
With patented automatic calibration technology, it can automatically align the zero and full points in the process of emptying and water-adding of the liquid level meter.
The measurement is true and reliable due to that the level meter is directly connected with the drum body of boiler and the capacitive sensor is in direct contact with the liquid.
The patented structure of steam condensing chamber can ensure the consistency of the temperature between the level meter and the boiler drum body to the maximum extent, so as to ensure the accurate of the water level measured. It can also effectively separate the steam from the water to prevent water drop on the surface of capacitive sensor, and avoid the impact of steam and water on the capacitive sensor.
Its inverted structure and automatic sealing function ensure the safety and reliability of the electrical parts.
It adopts advanced technologies for the whole parts, and is reliable and durable.
Beidou Intelligent Vehicle Location Terminal is a new generation of Vehicle Location Terminal developed by our company independently. The Vehicle Monitoring Platform can realize the application service system of positioning, tracking, monitoring and dispatching, trajectory analysis, alarm processing, anti-theft and anti-robbery, information dissemination, operation management and statistical analysis of mobile targets, which can satisfy the monitoring of mobile targets in various industries control the need of position management.
The system is suitable for electric vehicles, logistics vehicles, taxis, buses, long-distance buses, dangerous goods vehicles, shipping and other industries.
Beidou Intelligent Vehicle Location Terminal is a new generation of Vehicle Location Terminal developed by our company independently. The Vehicle Monitoring Platform can realize the application service system of positioning, tracking, monitoring and dispatching, trajectory analysis, alarm processing, anti-theft and anti-robbery, information dissemination, operation management and statistical analysis of mobile targets, which can satisfy the monitoring of mobile targets in various industries control the need of position management.
The system is suitable for electric vehicles, logistics vehicles, taxis, buses, long-distance buses, dangerous goods vehicles, shipping and other industries.
Technical Specifications
2.1 Terminal Technical Specifications
The product integrates GPS, CDMA (GSM), fuel sensor, temperature sensor and extended peripherals. It can replace the huge system composed of various devices such as satellite positioning vehicle terminal + fuel sensor + temperature sensor + data acquisition module. Simplify installation and reduce costs to provide a reliable solution. The whole machine has passed the harsh environmental conditions of the laboratory and the performance is stable and reliable. The product adopts high-precision GPS module and world-class communication chip. The whole machine achieves very low power consumption while operating stably and efficiently, and the running power consumption is only 3W. The product provides an extended communication interface, which can be connected to peripherals such as positive and negative sensors.
1. All the supplied products are provided with product certificates and instructions, including product number, technical parameters, wiring diagram,factory date, etc. Please check carefully to avoid misuse.
2. Installation should check whether the field interface is connected to the product according to the connection mode and thread type of the product.The mouth is the same. If it is a threaded interface, it should be tightened slowly and sealed carefully. Torque can not be added directly to the transmitter shell, but only on the six sides of the pressure interface.
3. The wiring should be strictly in accordance with the instructions of our company.
4.This product is a precise instrument. It is forbidden to disassemble, colide,fall,throw hard or punch the drainage hole with a sharp instrument.
5. The transmitter can work by electricity, but the preheating output is stable for 30 seconds.
6. If any abnormality is found in use, the power supply should be turned off, the use should be stopped, the inspection should be carried out, or contact our technical department direct.
7.When transporting and storing, the original packaging should be restored and stored in a cool, dry and ventilated warehouse.
8.The quality assurance period is 12 months.
Intelligent Operation Method
1. LCD shows the output percentage or process pressure. Press the S key to select the display percentage or pressure.Press Z key to select pressure unit KPa or Mpa when displaying pressure.
2. Press S+Z key for 8 seconds, then release it at the same time, press Z key to set the zero value; Press the S key set the range. note: this function can only be triggered once an operation.
3. Adjustments to zeros or ranges may cause changes in the displayed options, i.e.The percentage being displayed becomes pressure or KPa becomes Mpa, etc. All these changes are shown only in the display, and have no effect on the internal parameters of the transmitter, pressure detection and current output. After adjusting the zero point and range, the S and Z keys can be used to select the desired percentage or pressure.
4. Zero-setting in field pressure-free state: 30 seconds after pressing S+Z key, the display shows zero time at the same time release the two keys, that is, zero.
Simulated operation method
1.Zero-setting in pressure-free condition: The potentiometer with the word "zero" on the circuit board is adjusted to zero when it is displayed on the spot.(Note: Clockwise increase, counterclockwise decrease)
2.The potentiometer marked "range" on the circuit board can not be adjusted without standard pressure, so as to avoid the disorder of measurement range.
CR-602 series high temperature high pressure liquid level sensor is suitable for the continuous measurement of liquid(things) level of high pressure equipment,container in industrial production process.Transmit output 4-20mA direct standard signal. It can be directly used in connecting use and automatic control of electric â?¢ type instrument and computer. The tube is made of special material which make it can work under 250 for long time. Special designed automatic sealing structure , the greater the pressure the sealing stricter.safely avoid medium leakage.
The core components of the product are converted into standard electrical signals (generally 4-20mA) by using advanced radio frequency capacitance detection circuit to conduct precise temperature compensation and linear correction through 16-bit single-chip microcomputer. 485 communication protocol can be used in system configuration. All series of transmitters have the function of on-site calibration. Users can press the button to carry out zero point and range, so as to meet the different requirements of various complex places.
The product conforms to GB3836.4-2000ã??Electrical equipment for explosive gas environment part 4: intrinsically safe type Iã??and GB3638.1-2000ã??Electrical equipment in explosive gas environment part 1: general requirementsã??explosion-proof mark:Exdâ?¡C T6, it is suitable for 0,1,2 zones which contains â?¡A-â?¡C category,T1ï½?T6 group explosive gas mixture.This product has also been awarded explosion-proof certificate after testing qualified through national explosion-proof inspection center.
Measuring scopeï¼?0.01ï½?10m
Precision: 0.5
Pressure scope: -0.1MPaï½?32MPa
Tube temperature resistant: -50ï½?200
Tube diameterï¼?Ï?8
Tube Materialï¼?PTFE
Storage temperatureï¼?-55ï½?+125
Output signal: 4ï½?20mAã??4-20mA with HART communication , 485 communication with 4-20mA
Supply power: 12-28VDC (intrinsic safety type needs to be powered by safety grid)
Fixed wayï¼?threaded installationï¼?M20*1.5 M27*2
Flange installation: DN15,DN25,DN40,DN50,DN80, special requirements can be customized.
The series of pressure transducers use imported high-quality pressure sensors and special integrated modules, through fine temperature, zero, full range, and non-linear compensation to achieve accurate measurement and transmission of pressure changes in liquid, gas, steam and other media.
Technical Index
Measuring medium: liquid, gas, steam
Pressure range: -0.1MPA~0~60MPA
Accuracy grade: ±0.2%FS, ±0.5%FS
Stability: â?¤0.2%FS/year
Temperature drift: â?¤0.02%FS/(range 0~70)
Environment temperature: -20+85
Storage temperature: -20+85
Output signal: 4-20mA or 1-5VDC
Supply voltage: 12-40VDC
Allow overload: two times the quota voltage
Explosiveproof grade: intrinsically safeia II C T6 flameproof dII C T6
Wetware material: 316 stainless steel and 1Gr18Ni9Ti
Shell material: die casting alloy aluminum,surface epoxy spraying
Pressure interface: M20X1.5
Weight: ordinary 0.75kg, with on-site instructions 1kg
Structure Type
x1
Connection
x2x31
x4
The link mode and output signal of the compact tranmitter are as follows:
Two-wire system:
1 Positive power supply
2 Negative power supply
3 Empty
4 Shell
Three wire system:
1 positive power supply
2 Negative power supply (Negative sharing with signals)
3 Signal+
4 Shell
x5
The connection mode of aviation plug transmitter is as follows:
Two-wire system(direct outlet type)
1 Red wire connection positive power supply
2 Black wire connection negative power supply
Notice
1. All the supplied products are provided with product certificates and instructions, including product number, technical parameters, wiring diagram,factory date, etc. Please check carefully to avoid misuse.
2. Installation should check whether the field interface is connected to the product according to the connection mode and thread type of the product.The mouth is the same. If it is a threaded interface, it should be tightened slowly and sealed carefully. Torque can not be added directly to the transmitter shell, but only on the six sides of the pressure interface.
3. The wiring should be strictly in accordance with the instructions of our company.
4.This product is a precise instrument. It is forbidden to disassemble, colide,fall,throw hard or punch the drainage hole with a sharp instrument.
5. The transmitter can work by electricity, but the preheating output is stable for 30 seconds.
6. If any abnormality is found in use, the power supply should be turned off, the use should be stopped, the inspection should be carried out, or contact our technical department direct.
7.When transporting and storing, the original packaging should be restored and stored in a cool, dry and ventilated warehouse.
CR-605 series universal liquid level gauge is suitable for measurement of sewage, oil (sheathed tube), high viscosity, easy to crystallize, easy to adhere, changeable medium , foam or aerosol impact and other diffcult to measure situation. The whole machine does not have any movable or elastic parts with advantages of impact resistance, convenient installation, high reliability, high precision and good cost performance. It can replace the RF admittance, radar, ultrasonic, magnetostrictive and other level gauges to make accurate measurements.
The core components use advanced RF capacitance sensing circuit to convert to standard electric signal after precision temperature compensate and linear correction through inner processor. The product uses tomography technology to automatically detect the dielectric constant and temperature changes of the medium, automatically calibrate, and automatically adapt to the measured medium. In any case, you can adapt to different measurement requirements in complex locations without recalibration. And it has excellent resistance to hanging materials, anti-condensation, anti-bubble and other super adaptability. The products own protection rating is IP68, which enables long-term stable measurement in harsh environments.
CR-607 series hygienic liquid level transmitter is a special instrument customized for the food and pharmaceutical, beverage processing, brewery industry, biological products and other industries. Using standard sanitary stainless steel quick couplings and integrated PTFE probe structure, there is no sanitary dead spots on the whole product and the medium contact parts , which is the ideal product for measuring liquid level in related industries. The whole machine does not have any movable or elastic parts, features are impact resistance, convenient installation, high reliability, high precision and good cost performance. It is the most ideal product for measuring liquid level in related industries. The CR6072 product adds automatic compensation and automatic calibration function, which reduces the maintenance workload of field personnel.
