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TGCZ type magnetostrictive liquid level gauge (transmitter)
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Level Gauge Series
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TGCZ type magnetostrictive liquid level gauge (transmitter)
TGCZ type magnetostrictive liquid level gauge (transmitter) adopts advanced signal acquisition technology, with reasonable product design, convenient installation, exquisite structure, strong environmental adaptability, and no need for regular re-labeling and maintenance. It has the advantages of high precision, good stability, high reliability, diverse output signals, long service life, safety and reliability. Widely used in industrial process control, petroleum processing, pharmaceutical, food processing, water treatment, gas station underground inventory and other fields of liquid level, boundary monitoring, alarm and control.
Working principle
The magnetostrictive liquid level sensor is composed of measuring rod, magnetostrictive wire, movable float and so on. When the sensor is working, the circuit part of the sensor will excite a pulse current on the waveguide wire, and the current will generate a pulse current magnetic field around the waveguide wire during the propagation of the current along the waveguide wire. There is a float outside the sensor rod, and a set of permanent magnetic rings inside the float, which can move up and down along the rod with the change of liquid level. When the pulse current magnetic field meets the magnetic ring magnetic field generated by the float, the magnetic field around the float changes, so that the waveguide wire generates a torsional wave pulse at the position where the float is located, and this pulse is transmitted back along the waveguide wire at a fixed speed, and detected by the detection mechanism. By measuring the time difference between the transmitted pulse current and the torsional wave, the position of the float, that is, the position of the liquid level, can be accurately determined.
Technical advantages
TGCZ type magnetostrictive liquid level gauge adopts non-contact measurement method, thus eliminating the influence of the measured medium on the measuring components, and the meter head is equipped with highly intelligent electronic module, which improves the measurement accuracy of the device and ensures the stable and reliable operation of the device. This type of product has a reverse polarity protection function to avoid the occurrence of damage to the meter head due to wiring errors.
TGCZ magnetostrictive level gauge has diversified output signals. Users can observe the liquid level on the LCD liquid crystal display of the field meter head, and the device can output 4-20mA standard current signal (with HART protocol). Users can realize liquid level monitoring in the centralized control room. When the liquid level is abnormal, the level gauge will give an alarm, and the user can control it remotely to ensure safe and stable operation. This type of device has a variety of functions, such as: lightning protection, anti-radio frequency interference, explosion-proof (optional), data recovery, etc., with strong environmental adaptability, on-site maintenance-free advantages.
Technical parameters
Supply voltage: 24V DC;
Ambient temperature:-40 ℃ ~ 70 ℃;
Process pressure: ≤ 16MPa Medium requirements: density ≥ 0.45 g/cm3Viscosity ≤ 0.005Pa.s; density difference ≥ 0.15 g/cm3
Range: 0.3m ~ 20m;
Accuracy: 0.5;
Signal output: 4-20mA standard current signal with HART protocol;
Repeatability error: better than 0.01%FS;
Resolution: better than 0.01%FS;
Hysteresis: better than 0.01%FS;
Temperature effect: ± 0.007 FS/℃;
Electrical interface: M20X1.5;
Explosion-proof grade: EXdIICT6Gb;
Enclosure protection class: IP66.
Product Selection Table
| TGCZ | Product Number | Number Description | Content | ||||
| Installation method | -1 | Top-mounted magnetostrictive level gauge | Installed at the top of the device, the process connection is flanged or threaded. | ||||
| -2 | Magnetostrictive liquid level meter with external float | Equipped with external buoy installation, the head is at the top, and the connection mode is flange. | |||||
| -3 | External Bundled Magnetostrictive Level Transmitter | Used in conjunction with the maglev level gauge, it is tied to the outside of the maglev level gauge, with the meter head at the top, and the process connection is tied. | |||||
| Material | A | 304 stainless steel | When choosing other stainless steel, it should have physical properties such as oxidation resistance, high temperature resistance, corrosion resistance and non-magnetic properties. | ||||
| B | 316 stainless steel | ||||||
| C | Other Materials | ||||||
| Process Connection | F | Flange | Process connection using flange connection (DN) | ||||
| B | Thread | Threaded connection is adopted for process connection (M) | |||||
| T | Bundle | Process connections are bundled | |||||
| Measurement range | -L | Range | Measuring range: 300mm ~ 20000mm | ||||
| Note: TGCZ-/1TGCZ-2 magnetostrictive liquid level gauge working pressure ≤ 4.0MPa; TGCZ-3 type telescopic liquid level transmitter working pressure ≤ 32MPa, measuring full park ≤ 20m. |
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Selection example
TGCZ-1BF-500
TGCZ magnetostrictive level gauge installation: top-mounted, material: 316 stainless steel, process connection: flange connection, range: 500mm
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