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Hot Keywords:Pressuresensor Pressure transmitter level sensor Temperature sensor
PT500-SZY10 differential pressure static level
Imported silicon pressure core; PT100 temperature chip;
Aviation grade aluminum alloy shell, fully sealed waterproof structure;
High precision, stable, digital amplification circuit;
Zero point, full scale, temperature compensation and linear compensation;
Rs485-rtu digital signal height and temperature are output simultaneously;
Settlement monitoring of rail transit subgrade and subway support wall;
Monitoring of settlement of mountain and buildings on the upper part of the tunnel;

Settlement monitoring of subgrade, slope and pier of expressway;

Settlement monitoring of foundation pit, nuclear power station and hydropower station;
Foundation settlement monitoring of dams, water conservancy projects and high-rise buildings;
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  • Product parameters
  • Specification parameter
  • Ordering considerations
  • Precautions for use
  • Common problem
  • Proposal

PT500-SZY10 Differential pressure static level settlement monitoring

PT500-SZY10 Product structure and characteristics of differential pressure static level:
1. Imported silicon pressure core;

2. PT100 temperature chip;

3. Aviation grade aluminum alloy shell, fully sealed waterproof structure;

4. Supporting exhaust valve, level gauge and mounting plate;

5. 10mm gas pipe connection quick plug connector;

6. M12 waterproof connector;

7. High precision, stable, digital amplification circuit;

8. Zero point, full scale, temperature compensation and linear compensation;

9. Rs485-rtu digital signal height and temperature are output simultaneously;

10. 4-core shielded cable;


PT500-SZY10 Main applications of differential pressure static level:
Settlement monitoring of rail transit subgrade and subway support wall;

Monitoring of settlement of mountain and buildings on the upper part of the tunnel;

Settlement monitoring of subgrade, slope and pier of expressway;

Settlement monitoring of foundation pit, nuclear power station and hydropower station;

Foundation settlement monitoring of dams, water conservancy projects and high-rise buildings;

Safety management of bridges, foundations and tunnels;

Master the environment, traffic, structural stress, deformation and other parameters of the monitored object;

Real time assessment of bridge working conditions and prediction of bridge function changes;

Evaluate the signs and trends of structural performance degradation, so as to facilitate the management and maintenance unit to take maintenance and repair measures in time;

Measure the settlement state of the support and the change of the expansion joint

Measure displacement of anchor plug body


Model designation:
PT500-SZY10-2m-RS485
PT500：Category  range output
SZY10：Model
2m：Range
RS485：Output

Application fields:

  • Water level measurement and monitoring of tunnel and Bridge

  • Water level measurement and monitoring of fire wells and pools

  • Intelligent fire control

  • Smart city

  • Agricultural irrigation

  • Groundwater level

Main technical parameters of PT500-szy10 differential pressure static level:

Measuring range: 0 ～ 0.5m; 1m； 2m； 5m； 10m；
Comprehensive accuracy: ± 0.1% FS;
Nonlinear: ≤ 0.1% FS
Repeatability: ≤ 0.1% FS (min ± 1 μ m）
Output signal: rs485-rtu (height and temperature)
Resolution: 0.01mm
Power supply voltage: 24VDC (9 ~ 30VDC)
Working current: < 50mA (varies with the range)
Service life: ≥ 1 million times
Insulation impedance: ≥ 1000 m Ω / 100VDC
Ambient temperature: - 40 ～ 70 ℃
Humidity / dew point: humidity 90%, no condensation
Temperature coefficient: < 50pp / C
Response time: ≤ 5ms
Overload pressure: 150% FS
Electrical connection: M12 waterproof electrical connector
Process connection: 10mm liquid pipe quick plug connector
Protection grade: IP67
Connecting cable: four core shielded cable, standard length: 1m
Overall dimension: Φ 80*55
Applicable medium: random liquid such as water or antifreeze liquid (depending on the ambient temperature of the application installation area, ensure that the liquid does not freeze)



Product structure size:


Settlement is a slow process. In any short period, the change reflected in the liquid level of the liquid storage tank will be very small. Whether or not this small change can be detected in real time and accurately, reflecting the small settlement of the foundation, and achieving prevention is the key to measuring the quality of a static level product. This puts forward high requirements for the real-time and precision of the liquid level sensor integrated in the system. As it is installed outdoors, the temperature coefficient, water resistance and lightning protection of the liquid level sensor are key technologies. In addition, the installation dimension and replaceability of the static level gauge are also important technical indicators. It is composed of a high-precision liquid level gauge, a liquid storage tank, a protective cover, a connecting gas and a water pipe.

The differential pressure static level is a kind of precision instrument based on the principle of connecter, which measures the relative changes between the liquid level of several mutually connected liquid tanks installed at the measured point and the liquid level of the liquid tanks at the measurement base point (fixed point), and deduces the settlement changes of the relative positions of the installation positions of each liquid tank.
! ! !Product power supply 24VDC (range: 9-30vdc);

! ! ! It is strictly prohibited to remove the outer pipe of the product (since it is completely sealed and protected by rubber seal, it is possible to install liquid leakage after removal);

! ! ! The power and signal wires shall be correctly wired according to the specifications of the ordered products;

! ! ! The unused end of the electrical connector must be screwed with a cap;

! ! ! During field installation, the air of the liquid pipe shall be discharged, otherwise the measurement accuracy will be affected;

! ! ! During on-site installation, it is recommended to use metal or plastic pipes for protection of cables and liquid pipes;

! ! ! If there is no liquid in the product, please replenish it in time;

! ! ! Horizontal installation of products;

! ! ! For outdoor installation, it is recommended to install the product in the protective box;
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