LTJ31 cable throw-in type level transmitter
Characteristics: Suitable for irregular and narrow gauge hatch. Accurate and reliable level measurement. High accuracy up to 0.1. Flexibly installation. The measuring range is very deep: as deep as 200m. The zero point and full range can be adjusted.
Profile
LTJ31 cable throw-in type liquid level transmitters use a dry ceramic capacitor sensor as measurement unit. Probe diaphragm shall be subject to level pressure, causing a corresponding elastic displacement in the process of measurement. According to the principle of level pressure in proportion to the distance between the two poles, a changing capacitance shall be detected by the transmitter, and then enlarged so that it can output a accurate voltage signal when passing through trimming circuit. Finally, the signal shall be converted to a corresponding standard current signal output with a range from 4mA to 20mA.
The transmitter uses two-wire wiring, which can be wired easily; Junction box is separated from probe, making it more suitable for on-site installation; the shell of sensor adopts stainless steel omniseal structure, which can attain a protection class up to IP68; the cable uses a water-proof gas guidance cable, capable of withstanding long-term immersion in water. Thereby, the transmitter is a liquid level measurement device featuring reasonable structure, economic and stable performance.
| The Main Technical Parameters |
| Measurement Range:0.5~200m（Max） (subject to real object) |
| Cable Length:0.5~300m（Max） (subject to real object) |
| Accuracy class:≤±0.2%FS |
| Temperature Effect:≤±0.075%FS/10℃ |
| Stability: 0.10%FS/year |
| Working Voltage: 12 VDC ~30VDC |
| Power Loss: 1W |
| Transmitting Current: 4~20mA |
| Maximum Current: 30mA |
| Load Resistance: ≤750Ω (with a supply voltage of 24V) |
| Insulation Resistance: 100MΩ (100VDC) |
| Outgoing Cable Methods: Phoenix Terminal |
| Connection type: Flange |
| Enclosure Material: Alloy |
| Probe case material: SUS304 |
| Sensor material: 316L |
| Sealing Material: Viton |
| Operating Temperature: -40~80℃ |
| Environmental Condition:-40~85℃,≤95%RH ( keep away from corrosive gas) |
| Protection class for shell: IP65 |
| Protection class for probe: IP68 |
SẢN PHẨM LIÊN QUAN:
- https://ancatphu.com/shop/ltl12-light-pulse-input-type-level-transmitter/
Sản phẩm tương tự
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.
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 airway cable 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. Installation of insert mode, easy to maintain. Operation without electricity. Matching with photo-electric sign, apply to the condition of dusky light.
Profile
MN magnetic flap level meters adopt side mounting through a bypass pipe which is characterized by its easy installation, high stability and reliability or top mounting through a guide rod. The level meter is completely isolated between the inside and outsider cavity, and added a sealed flange at its bottom which can be opened easily to clean up dirt, impunity, etc.. One way level meters and meters adopting top mounting for its guide rod , equipped with a pressure hole in the top connected with atmosphere, are suitable for measuring level of medium at room temperature and pressure; Two-way level meters can be made with a certain operating pressure according to customers’ needs, and are suitable for measuring the liquid level of corrosive medium in places with high temperature, high humidity and high pressure. Level meters mainly consist of body of magnetic flat, display board of magnetic flat, floating ball, magnetic memory switch, ruler, etc.. In addition, an transmitter can be added according to customers’ needs.
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 a 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 sensor 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.
Characteristics: Without junction box, it’s convenient to install. The zero point and full range cann’t be adjusted. The dry ceramic capacitor sensor come into contact with the medium directly, prevent the malign influence of sunshine, temperature etc, thus the output signal is just decided by the level. The measurement parts and transmission parts are integrated, the structure is compact.
Profile
LTJ11 integrated input type level transmitter use a dry ceramic capacitor sensor as measurement unit. Probe diaphragm shall be subject to level pressure, causing a corresponding elastic displacement in the process of measurement. According to the principle of level pressure in proportion to the distance between the two poles, a changing capacitance shall be detected by the transmitter, and then enlarged so that it can output a accurate voltage signal when passing through trimming circuit. Finally, the signal shall be converted to a corresponding standard current signal output with a range from 4mA to 20mA.
The measurement parts and transmission parts are integrated, compact structure, it’s easy for installation. The sensor and transmitter are sealled in the probe, and the case of the probe is a stainless steel sealing structure, the protection class can up to IP68.
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