How to Determine if a Vibration Sensor is High-Pressure Resistant

Examining the product's rated pressure resistance specifications and suitability with the application situation is crucial to determining whether a vibration sensor is high-pressure resistant. The following are the precise steps:

1. Check the official parameters first. Check the product manual's "Rated Pressure Range" or "Pressure Withstand" characteristics directly. The injection melt pressure in hot runner circumstances is usually between 10 and 150 MPa. The rated pressure resistance of the sensor must be at least 1.5 times greater than the hot runner's maximum operating pressure. For instance, in order to prevent damage from high pressure, the sensor's rated pressure resistance must be at least 150 MPa if the hot runner's maximum operating pressure is 100 MPa.

2. Examine product certifications and insignia. The rated pressure resistance value of reliable industrial high-pressure sensors will be prominently shown on the label or enclosure. To provide increased dependability, industrial-grade high-pressure sensors will have matching IP certifications or industry pressure vessel certifications.

3. Assess using structural features. While common low-pressure sensors are frequently encased in plastic or thin shells that lack the structural strength to handle high pressure, direct-pressure vibration sensors in contact with the melt are typically encased with a high-strength stainless steel diaphragm.

Note: It does not have to endure the high pressure of the melt if it is a non-contact vibration sensor mounted on the outside of the mold/diverter plate (sensing just mechanical vibration and not in contact with the melt). All it has to do is match the structural installation's mechanical strength. The melt pressure resistance parameters don't need to be checked.