XQ sender is widely used in magnetic flip level gauges as an alarm switch for magnetic flip level gauges and is a magnetic flipper The important accessories of the level gauge. Since each magnetic flap level gauge manufacturer uses different names, it is substantially larger Both use the structure of the reed switch. After several years of continuous improvement and upgrading of the XQ sender , performance indicators have been greatly improved. The original XQ The switch contact of the sender is accomplished by the reed switch under the action of the magnetic field, and now the contact switch is based on the lever in the magnetic The micro switch is pressed under the action of the field. In the XQ transmitter made of dry reed pipes , although the consistency of the sensitivity of the German reed switch is better, However, the size of the auxiliary magnetic steel is relatively small, and it is not easy to control. The sensitivity adjustment of the entire machine is purely manual operation, so there is a reed The dispersiveness of XQ senders formed by pipes is still relatively large. Improve all components of the upgraded XQ sender through mold processing, or purchase standard parts assembly Made, so the consistency of the whole machine has improved. The quality of the product is guaranteed, and the quality of maintenance and exchange Guarantee. The auxiliary magnetic steel used in the XQ transmitter is molded by a mold and is magnetized once. Auxiliary magnetic steel in float magnetic steel The rotation is generated under the interaction, which drives the lever action. Now it has been changed to a miniature bearing to make the rotation more flexible. Rely on, the sensitivity is greatly improved. The original XQ sender and XQ/B sender were all made of aluminum alloy. The cover and the seat were in contact with each other and the seal was poor. So you can only do cost-safe products. The improved XQ sender is in contact with the XQ/B sender cover and seat. By using a cylindrical seal, it is not only cost-effective but also flameproof. The upgraded XQ transmitter and XQ/B transmitter have three types of enclosures depending on the temperature of the application. 1. Flame-retardant reinforced polycarbonate shell (low temperature type, black cover yellow shell) Heat resistance: Heat distortion temperature ≥120°C, can be used at 80°C for a long time. Anti-aging: 10 years after outdoor exposure, its strength retention rate is above 60%. Operating temperature: -25 ~ 100 °C, using special installation and insulation accessories, the process temperature up to 100 °C. 2 thermosetting glass fiber molded shell (medium temperature, orange cover ) Heat resistance: Heat distortion temperature ≥120°C, can be used at 100°C for a long time. Anti-aging: 10 years after outdoor exposure, its strength retention rate is above 60%. Operating temperature: -25 ~ 120 °C, using special installation and insulation accessories, the process temperature up to 120 °C. 3. Stainless steel shell (high temperature type) Heat resistance: Heat distortion temperature ≥350°C, can be used at 300°C for a long time. Working temperature: -45~300°C, with special installation and heat insulation accessories, the process temperature can reach 300°C. Technical Parameters Switch type: special micro switch, single-pole double-throw, with shock protection. Contact Form: Double Contacts, Normally Open, Normally Closed, High Power Drive (SPDT) Contact capacity: 8A 250V AC Contact pick-up error: ≤ 3mm Contact release error: ≤ 8mm Aspiration range: 2-22mm Minimum sensitivity: 1mm Minimum breakdown voltage: 800VDC Maximum Switching Current: 8A Minimum insulation resistance: ≥1.0×1012 Insulation strength: 2500V ac; 1mim Electrical interface: M20×1.5 female thread Protection class: IP65 Explosion-proof mark: Intrinsically safe type: ExiaIICT5, Flameproof type: ExdIIBT5 Associated equipment: GS 8000-EX isolation barrier In the technical parameters we introduce the two concepts of attraction range and minimum sensitivity, and the scope of attraction and the smallest Sensitivity is defined as follows: The unit of attraction range is mm . It means the sender should be able to work normally and reliably within the distance from the surface of the magnetic float. As a result, this distance range is called the attraction range. The minimum sensitivity unit is mm , which means that the transmitter can still work normally and reliably at the minimum distance from the surface of the magnetic float. This minimum distance is called minimum sensitivity. The introduction of these two concepts will ensure the interchangeability of XQ transmitters in all magnetic flap level gauges . general Side mounted magnetic flap level gauge, vacuum frost protection type, jacket insulation type, electric heat tracing type, high pressure type, lining PTFE type, Jacket anti-hot type, etc. can be exactly the alternative exchange. The upgraded XQ sender and XQ/B sender have greatly improved both in terms of structure and technical indicators. Make the application more extensive. After several years of actual field application, it has won the trust of users and middlemen.
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XQ sender
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