Spot sale of German HYDAC pressure sensor

When choosing a German HYDAC pressure sensor, we need to consider its overall accuracy. What factors affect the accuracy of German HYDAC pressure sensors? There are actually many factors that can cause sensor errors. Below, we will focus on four unavoidable errors, which are the initial errors of sensors.

The first offset error: Due to the constant vertical offset of the German HYDAC pressure sensor throughout the entire pressure range, changes in converter diffusion and laser adjustment correction will result in offset errors.

Next is sensitivity error: the magnitude of the error is proportional to the pressure. If the sensitivity of the device is higher than the typical value, the sensitivity error will be an increasing function of pressure. If the sensitivity is lower than the typical value, the sensitivity error will be a decreasing function of pressure. The reason for this error is due to changes in the diffusion process.

The third is linear error: this is a factor that has a relatively small impact on the initial error of the German HYDAC pressure sensor. The cause of this error is the physical nonlinearity of the silicon wafer, but for sensors with amplifiers, the nonlinearity of the amplifier should also be included. The linear error curve can be a concave curve or a convex curve for weighing sensors.

Finally, there is hysteresis error: in most cases, the hysteresis error of German HYDAC pressure sensors can be ignored because silicon wafers have high mechanical stiffness. Generally, hysteresis error only needs to be considered in situations where there is a significant change in pressure.

The four errors of the German HYDAC pressure sensor cannot be avoided. We can only choose high-precision production equipment and use new technology to reduce these errors. We can also perform certain error calibration at the factory to minimize errors as much as possible to meet the needs of customers.

Usually, damage to high-temperature melt German HYDAC pressure sensors is caused by improper installation positions. If the sensor is forcibly installed in a small or irregularly shaped hole, it may cause the sensor's diaphragm to be impacted and damaged. Choosing a suitable tool to process the installation hole is beneficial for controlling the size of the installation hole. In addition, appropriate installation torque is beneficial for forming a good seal. However, if the installation torque is too high, it is easy to cause the high-temperature melt pressure sensor to slip off. To prevent this phenomenon, anti stripping compounds are usually applied to the threaded part of the sensor before installation.

1. Correct installation method for HYDAC pressure sensor in Germany:

(1) Verify the frequency response value of the pressure sensor under normal atmospheric pressure and standard temperature conditions using appropriate instruments.

(2) Verify the correctness of the coding of the pressure sensor and the corresponding frequency response signal.

2. Spot sale of German HYDAC pressure sensorDetermine the specific installation location

In order to determine the number and specific installation location of the HYDAC pressure sensor in Germany, it is necessary to consider each inflation section of the inflation net.

(1) The pressure sensor must be installed along the cable, preferably at the cable joint.

(2) Each cable should be equipped with no less than 4 pressure sensors, and the two pressure sensors near the telephone office should be no more than 200m apart.

(3) Install one at the beginning and one at the end of each cable.

(4) Each cable should have one branch point installed. If two branch points are close together (less than 100 meters), only one can be installed.

(5) One cable should be installed at the location where the cable laying method (overhead, underground) changes

(6) For cables without branches, due to the consistent cable program of the base line, the installation spacing of pressure sensors should not be more than 500m, and the total number should not be less than 4.

(7) In order to facilitate the determination of the fault point of the pressure sensor, in addition to installing the pressure sensor at the starting point, an additional one needs to be installed at a distance of 150-200m from the starting point. Of course, in the design, economic and technical factors must be considered. If the pressure sensor does not need to be installed, it should not be installed.

Spot sale of German HYDAC pressure sensorCheck size:

If the size of the installation hole is not appropriate, the threaded part of the high-temperature melt German HYDAC pressure sensor is easily worn during installation, which not only affects the sealing performance of the equipment, but also prevents the sensor from fully functioning and may even cause safety hazards. Only suitable installation holes can avoid thread wear (Thread Industry Standard 1/2-20UNF2B), and installation hole measuring instruments can usually be used to detect installation holes and make appropriate adjustments.

German HYDAC pressure sensors are widely used in various industries, especially in the industrial sector. However, in industry, pressure sensors are generally required to be corrosion-resistant. The pressure sensor joints and chambers are made of imported stainless steel and processed as a whole. The stainless steel material used as the pressure transmitter body has high corrosion resistance and good attenuation performance, and can monitor any medium compatible with 316L. Next, we will also introduce the anti-corrosion techniques for pressure sensors.

Understand whether the tested medium is compatible with 316L: 316317L alloy did not show corrosion in the 100 hour 5% salt spray test. Secondly, when selecting sensor products, consult the supplier about whether the medium has an impact on the pressure sensor; By selecting corrosion-resistant materials for the projectile, in order to meet the needs of users. Finally, we can adopt an isolation method: there are molybdenum titanium and tantalum sheets in front of the pressure transmitter, and methyl silicone oil is used to transmit pressure between the diaphragm and the ballistic tube. The minimum range can reach 0-100kPa. If the diaphragm material is not yet corrosion-resistant, an F46 diaphragm can be added, but the instrument sensitivity may be reduced. F46 can also be directly used as an isolation membrane, and fluorine oil can be used as the transfer fluid to achieve dual isolation.

Once the German HYDAC pressure sensor is found to be incompatible with the medium during use, it must be replaced immediately. For some special media, we can use special materials or structures for measurement. The German HYDAC pressure sensor will definitely be more widely used in the future, so as a manufacturer, we should actively develop new pressure sensors to meet the needs.