LTJ21 guide rod insert type level transmitter
Characteristics: Accurate and reliable level measurement. High accuracy up to 0.1. Flexibly installation. The zero point and full range can be adjusted. Suitable for the flowing and whipping liquid. Restrict to the length of guide rod, the measurement range is narrow: 0.5–4m.
Profile
LTJ21 guide rod insert type level transmitter adopts diffusion silicon or dry ceramic capacitor as measurement unit. In process of measurement, diaphragm of probe, under action of level pressure, shall change its capacitance or resistance. The concise voltage signal shall be output after capacitance or resistance signal is enlarged by microcircuit. Finally, the signal shall be transferred into a corresponding standard current signal output of 4~20mA.
The measurement parts and transmission parts of LTJ21 are connected by the rigidity of the stainless steel
guides, it is suitable for the environment of flow rate liquid and swinging liquid. It is easy to install. But the
guide rod’s length is limited, so the measuring range is smaller. The sensors could select ceramic capacitor diaphragm,
the measurement is accurate and reliable, its accuracy class can up to 0.1.
| Technical Parameter | |
| Range | 500～4000mm(max) |
| Import type | Guide rod insert |
| Connection type | Flange, factory standard see the table above, or give us photos |
| Accuracy class | 0.1,0.2 |
| Sensors’ material | 316L |
| Environmental | -10～80℃,≦85%RH,avoid corrosive gas |
| Protection class | IP68 |
| Optional components | |
| Probe | Probe specifications Φ28×120,Φ48×108. Material:316L |
| Transmitter | You can select LN,LH and LW, details please call us |
Sản phẩm tương tự
Characteristics: Never leak with Woodd-seal. Transparent quartz tube, with ruler outside, simply operate, directly and clear. Precise and reliable. The parts have good extensibility, easy to change.
Profile
LTS quartz tube level transmitter adopts side mounting through a bypass pipe or top mounting. The transmitter contains quartz tube plus stainless protective sleeve, level switch, level transmitter, etc..
Side mounted magnetic bundle unit through a bypass pipe is placed inside of the floating ball, while top mounted magnetic bundle unit is connected with the floating ball. When the floating ball moves over liquid level, the magnetic bundle unit shall move along a level relay made up of a serial of magnetic module. Under the action of the magnetic unit, the magnetic module inside the level relay shall make a corresponding action, output a changed resistor signal, and then transfer the signal into a current output signal of 4~20mA. Meanwhile, the level can be observed directly through the quartz tube, and a magnetic switch shall conduct a related action at the corresponding point, making alarming action and control output.
The magnetic unit of the floating ball adopts a special magnetic group, which can still provide the required magnetic force for normal working of the transmitter even if used for a long period. Meanwhile, when the floating ball moves along a guide rod, the stronger linear magnetic field derived from the magnetic bundle unit of the floating ball, shall attract magnetic induction modules in the sensor one by one, thereby improving the accuracy rating and reducing the deviation of the transmitter.
Characteristics: Using high-speed counter, with high precision which can up to one ten thousandth. Non-contact measurement, long life. A variety of output options. With reverse polarity protection. Anti-lightning, anti-RF interference. Excellent price-performance ratio. Easy installation, no need demarcate and maintain。Magnetic unit of the float uses permanent magnet material and proprietary combined technology, so the magnetic force concentrated in the line plane to make sure the control is more precise.
Profile: The design of magnetostrictive level transmitter is based on some metals (such as nickel-iron alloy) have the
characteristics of magnetostriction under the role of the intersecting magnetic field, which is called Veidemann
effect. When measuring, the sensor detector sends a start pulse on one terminal of the magnetostrictive waveguide
line, which will form a magnetic field perpendicular to the transmission line, and the magnetic field
transmits following the pulse current along the transmission line at the speed of light. Once the magnetic field
come across the magnetic field produced by the magnetic ring which is set outside the waveguide line, the
intersect magnetic field is formed. The waveguide line produces the transient tension under the role of the
intersecting magnetic field, which will make the waveguide line twisting and producing the twist wave, this twist
wave (the velocity is about the speed of sound) is running along the waveguide, and when it returns to the detector,
it produces the inverse magnetostriction phenomenon, and forms a return electrical pulse on the sensor probe. The
time difference between the transmitting initial pulse and the receiving return pulse is related to the magnetic ring
position, the transmitter transforms the time difference signal (displacement of the magnetic ring) into the standard
current or voltage signal and export. LDT magnetostrictive level transmitter includes two
parts, which are sensor parts and the transmitter
parts. The sensor is consisted of stainless steel
guide rod, magnetostrictionc line, removable magnetic circle (including permanent magnet) and electronics bay.
The sensor part converts the physical signal into the corresponding electrical signal, and then the transmitter part
convert the electrical signal into standard analog signal before output.
LDT magnetostrictive level transmitter’s installation is flange.
Characteristics:
Transport by optional signal, away from lighting, strong magnetic and electrical’s interference;
The high molecular sieve is breathable but impermeable, it can avoid condensation effectively.
The measurement interface is ceramic, so it can be able to bear corrosion and pollution.
The signal transports by fiber, its transmission distance can up to hundreds of kilometers.
The fiber’s interface is proprietary, so it is convenient wiring.
It uses ceramic capacitive measuring principle, the applications is convenient with high accuracy, the
performance is stable and reliable.
Profile:
LTL series of transmitter use dry ceramic sensors as measuring unit. When the sensor is put into the measured liquid, the level will give a pressure on the surface of the sensor’s membrane. According to the proportion principle to the liquid pressure and liquid level, it will produce a corresponding elastic displacement. Because the dielectric and the area between two plate is constant, the capacitance and the distance between the two level is in proportion, so from substrate electrode and diaphragm electrode it can detects the changing capacitance. When the capacitance is enlarged by fine-tuning circuit, it can export an accurate voltage signal. Then the outputted voltage signal will be transformed into corresponding light pulse signal and exported.
LTJ uses split installing, and connect by flange. The transmitter part with aluminum alloy shell is sealed fastening. The shell specially adds the high molecular sieve stomata, it is breathable but impermeable, it can prevent condensation and protect the transmitter. The guide rod connection would make sure the sensors is keeping fair with the atmospheric pressure. It is suitable for big range measurement.
We provide two types of probes for you to choose. The transmitter part transforms signal from sensors into corresponding light pulse signal, then exports it by fiber. The transmitter with aluminum alloy shell is sealed fastening, its protection class can up to IP65. The cable is made of ST plug fiber and it is convenient to install and debug.
Our company specially selected a standard selection for customers, if you need some other options please tell us by special requirements.
The light pulse converter is used for transforming the input light pulse signal into corresponding electrical signal and then export it. It is the required components for light pulse level meter. LP light pulse converter applies high accuracy F/V conversion devices, it can transform the input light signal to corresponding signal with a range of 4～20mA and export it. DL fiber is single-mode fiber, the fiber comprehensively optimized the window’s performance of 1310nm and 1550nm. The dispersion on 1310nm window is the smallest. It comprehensively supports high capacity and low cost transmission of optical components.
Characteristics: It is polished, and the appearance is beautiful.
The magnetic unit material is NdFeB which is used in Space station, the magnetic structure is special,
so the magnetic beam is centered in the line plan, the strength can be sustained.
The output contact is with magnetic memory. It is suitable for measuring the liquid level which is in non-pressure
applications.
Profile: The body of the BNA11 single–pass magnetic flap level gauge and the measuring media are connected by a
bypass tube, to make the media level in the body is consistence to the external media. At the top of the level
gauge body there is opening a cited pressure hole which is used to connect with atmospheric, which is suitable
for atmospheric pressure environment. In the bottom of the body, there is adding a bottom flange, to easy
maintain (open the bottom flange and clean the precipitate).
Our company specially selected a standard selection for customers, if you need special requirement to put in,
please give us your schedule with images and tables.
Main technical parameters:
Connection type: Flange, if it is thread and non-standard, please list your figure and table.
Body material: SUS304,316L
Rule material: PVC,SUS304 rule
Working voltage: Atmospheric pressure
Temperature range: -40–100℃
Float: The float type is selected by our company.
Transmitter: You can choose MN, MH and ML transmitter.
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