Whether the high temperature melt pressure sensor is used correctly or not is related to the quality of the melt, and it also plays a good role in protecting the safety of production equipment and production.With proper installation and regular maintenance, pressure sensors can make a big difference.
installation method
Improper installation position can easily cause damage to the sensor.First of all, it is necessary to select a suitable processing tool to process the mounting hole and protect the vibration membrane of the sensor. Secondly, the pressure pipe cannot be bent, and it must follow the direction of the airflow. Finally, it is necessary to coat the thread part with anti-stripping compound to ensure air tightness.
The size of the mounting holes should be appropriate
If the size of the installation hole does not match, even if the installation is correct, its threaded part will cause wear and tear, which will directly lead to unsatisfactory air tightness, loss of performance of the pressure sensor, and even a potential safety hazard.Generally, a measuring instrument is used to calibrate the size and adjust when necessary.
The installation location should be appropriate
Usually installed on the barrel in front of the filter, before and after the melt pump or in the mold. Mounting elsewhere will either cause the sensor top to wear and damage, or the pressure signal transmission may be distorted.
Mounting holes are kept clean
The cleaning of the mounting holes can prevent the molten material from clogging, which is very important for the normal operation of the equipment. All sensors should be removed from the barrel before the equipment is cleaned.During dismantling, the molten material may flow into the mounting holes and harden, so we have to use a cleaning kit to remove these molten material residues, otherwise the second use will easily cause damage to the top.
Prevent pressure overload
Typically, the overload range of the pressure sensor is 150% of the maximum range.From a safety point of view, try to keep the pressure to be measured within the measurement range. If conditions permit, the optimal range of the selected sensor should be twice the pressure to be measured, so that even if the pressure suddenly increases, the normal output of the sensor can be guaranteed.
keep dry
The application indicators of most sensor load cells do not meet the waterproof requirements, and the circuit part inside should be protected to avoid long-term operation in a humid environment.Therefore, it is necessary to ensure that the water in the water cooling device of the production equipment will not leak. Just in case, it is best to choose a product with better waterproof performance.
Post time: Jun-29-2022