INTRODUCTION
In industrial production and various pressure measurement scenarios, the accuracy of the pressure transmitter is crucial. The GRAEFF magnetic pen is a key tool for operating the pressure transmitter, and its unique function and convenient use can help us better complete the debugging and calibration work of the pressure transmitter, ensuring the accuracy and reliability of the measurement data. Next, let's take a closer look at the use of GRAEFF's magnetic pen.
Pressure transmitter zero operation
1.Traditional zeroing methods
In the previous pressure transmitter zero operation, the common method includes the operation through the button on the watch head, such as holding down the "Z" key for a few seconds to set the current pressure to zero; Or use 475 and other equipment for zero clearing; You can also use the hand operator to enter the corresponding menu to change the range to achieve zero adjustment. However, these methods often require more complex operation steps, and may be limited by device compatibility, operating environment and other factors, not convenient and efficient.
2.GRAEFF magnetic pen advantage
The appearance of the GRAEFF magnetic pen has brought great convenience to the zero adjustment work of the pressure transmitter. Compared with the traditional zeroing method, it does not need complex key operation or other professional equipment, simply rely on the pressure transmitter housing at the zero sign, you can quickly and accurately complete the zero task. This mode of operation not only greatly saves time and labor costs, but also reduces the requirements for the professional skills of the operator, making the zero work easier and more efficient.
3.Zeroing detailed step breakdown
Preparation points: First, ensure that the pressure transmitter has been correctly installed on the pipeline and that the electrical connection is completed as shown in the wiring diagram. Before zeroing, the line needs to be heated to the right temperature and the pressure is zero. This step is critical because the accuracy and reliability of zeroing can only be guaranteed under certain temperature and pressure conditions. For example, in some industrial production processes, such as chemical, petroleum and other industries, the temperature and pressure of the medium in the pipeline may have a greater impact on the measurement of the pressure transmitter, if these factors are not controlled well before zero adjustment, it may lead to deviation of the measurement data after zero adjustment, thus affecting the stability and safety of the entire production process.
Magnetic pen operation guide: When the pipeline is heated and the pressure has returned to zero, take out the GRAEFF magnetic pen, and accurately lean its tip against the zero mark of the pressure transmitter housing, and hold it for 3-5 seconds. In this process, it is necessary to ensure that the magnetic pen is in close contact with the zero clearing mark to avoid affecting the zero setting effect due to poor contact. At the same time, the operator should keep the hand stable and avoid shaking or moving the magnetic pen. It should be noted that the position and shape of the zero sign of different models of pressure transmitters may be different, so before operation, be sure to carefully consult the instructions of the relevant equipment to find the position of the zero sign to ensure the smooth operation of the zero. For example, the clear mark of some pressure transmitters may be located on the side of the housing, while some may be on the top or bottom, and only by accurately finding the mark position can the magnetic pen play a role in achieving accurate zero adjustment.
Use precautionsand maintenance
1.Operation taboo
When using the GRAEFF magnetic pen, it should be avoided to place it in a strong magnetic field environment, such as near large motors, transformers and other equipment, so as not to affect the magnetism of the magnetic pen, and then interfere with its operation effect on the pressure transmitter. At the same time, it is strictly prohibited to use a magnetic pen to knock or impact the pressure transmitter, which may damage the internal precision components of the transmitter, resulting in inaccurate measurement and even equipment failure.
2.Routine maintenance
After daily use, wipe the magnetic pen with a clean and soft cloth to keep the pen tip clean and avoid dust, oil and other impurities attached to the pen tip affecting its magnetism and operating performance. For the pressure transmitter, regularly check whether the shell is damaged, whether the wiring is loose, and keep its surrounding environment clean and dry to prevent dust, moisture, etc., from entering the transmitter, affecting its normal work. When storing magnetic pens and pressure transmitters, you should choose a dry, ventilated environment without strong magnetic field interference, avoid direct sunlight and high temperature and humidity.
Technical Introduction: Graeff's High Temperature Melt...
2022-07-01Application of Graeff sensor in remote intelligent monitoring system of urban heating pipe network
2021-11-29GRAEFF Jiaxing Factory is now recruiting! We are waiting for you!
2025-01-13GRAEFF Spring Festival holiday notice: Go to the New Year, the future peers
2025-01-10GRAEFF highlights moment: Double award plus body, shining forward
2025-01-14GRAEFF melt pressure sensor (transmitter) installation precautions and electrical connection and debugging
2025-01-18GRAEFF magnetic pen instructions
2025-01-18GRAEFF is with you to celebrate Christmas. Wish you a Merry Christmas!
2024-12-24The application of GRAEFF radar level gauge
2025-01-15GRAEFF's New Year's Start and Shared Glory - The 2024 Annual Conference Grand Ceremony has come to a successful conclusion!
2025-01-15