Intrinsically safe and explosion-proof devices are designed to operate safely in hazardous environments by preventing ignitions. This blog explains the principles behind these devices, their differences, and their applications.
Definition: Intrinsically safe devices are engineered to prevent sparks and excessive heat by limiting the power available in the device’s circuitry. These devices are designed to operate safely in environments where flammable substances are present, ensuring that they do not generate enough energy to cause an ignition.
How They Work: These devices use barriers like Zener diodes and resistors to limit current and ensure energy levels remain below ignition thresholds. By controlling the energy flow, intrinsically safe devices minimize the risk of sparks or overheating that could ignite hazardous substances.
Applications: Commonly used in oil and gas, petrochemicals, and mining for monitoring gas levels, temperature control, and safe lighting. Intrinsically safe devices are essential in environments where the presence of flammable gasses, dust, or vapors poses a significant risk.
Definition: Explosion-proof devices are constructed to contain any internal explosions and prevent them from igniting the external environment. These devices are designed to withstand and contain explosions, ensuring that any sparks or heat generated inside do not escape and ignite the surrounding atmosphere.
How They Work: These devices rely on strong housings to contain explosions and maintain surface temperatures below ignition points. The robust construction of explosion-proof devices ensures that they can withstand the pressures and temperatures generated by internal explosions.
Applications: Used in oil and gas, petrochemicals, and other applications such as wellhead monitoring, pump controls, and high-temperature sensors. Explosion-proof devices are ideal for environments where containing an explosion is necessary to prevent widespread damage and ensure safety.
Intrinsically Safe: Ideal for environments where limiting energy is crucial. These devices are typically used for low-power applications and require additional barriers to ensure safety. Intrinsically safe devices are suitable for environments where flammable substances are regularly present and minimizing energy levels is essential to prevent ignitions.
Explosion-Proof: Wiring and installation is simpler than an intrinsically safe device as everything is contained in a single housing. Suitable for environments where containing an explosion is necessary. These devices rely on mechanical strength and are often used for higher power applications. Explosion-proof devices are ideal for environments where the presence of flammable substances are less, yet the risk of internal explosions must still be mitigated to prevent damage and ensure safety.
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Ensure the safety of your operations by consulting with an expert at Everight Position. Contact us today to discuss your specific needs and how we can help implement the best solutions for your hazardous environments.
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The P101 is a durable, affordable, high accuracy stand alone linear inductive position sensor designed for use in scientific and industrial applications.
Like all Positek sensors the P101 provides a linear output that is proportional to the displacement. The P101 is very compact and offers an excellent stroke to overall length ratio. Each unit is supplied calibrated to the exact travel required by the customer, for example, if your application requires 10″” (254 mm) measurement then Positek will manufacture the sensor specifically for this length.The mechanical length and calibration will be set up for 254 mm.the P101 is available with any travel from 0-5mm to 0-800mm.
The overall performance, repeat-ability and stability are outstanding over a wide temperature range. The sensor is very robust, manufactured from stainless steel the P101 has a long service life and strong environmental resistance and is particularly suitable for applications that require good sensor performance in harsh environments such as industrial machinery where cost is important.
The P101 is easy to install with either M5 rod eye or body clamps. The push rod can be supplied captive or free with either M5 thread, M5 rod eye or ball end. The rod can be spring loaded if required in either direction on sensors with a stroke length of up to 300mm. The P101 is available with a wide range of electrical inputs/outputs, sealing up to IP65/IP67 dependent on connector/cable options and fully integrated EMC protection.
The P132 is a very compact, durable, affordable, high accuracy linear inductive position sensor with a good stroke to overall length ratio; designed for gauge head positioning in scientific and industrial applications.
Like all Positek sensors the P112 provides a linear output that is proportional to the displacement. Each unit is supplied calibrated to the exact travel required by the customer, the P112 is available with any travel from 0-5mm to 0-50mm. For example, if your application requires 3/4″””” (19 mm) measurement then Positek will manufacture the sensor specifically for this length. The calibration will be set up for 19 mm. The overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor is very robust, manufactured from stainless steel the P112 has a long service life and strong environmental resistance and is particularly suitable for applications that require good sensor performance in harsh environments such as industrial machinery where cost is important.
The P112 has a spring loaded plunger with a dome end and the body has a long 1/2″””” UNF mounting thread and is supplied with two lock nuts for positioning. Sealing is IP67 and the P112 has fully integrated EMC protection.
The VLP-35 is designed to meet the needs of the servo motor and other industries. Designed to be modified in order to provide a best-fit solution to the needs of different customers, it is ideal for motion control in drives, robotics and automation, industrial and automotive applications.
Netzer recognizes the importance of cooperation with servo motor manufacturers, which have their own design philosophy and production methods, and as a result, the VLH-35 can be modified in order to provide a best-fit solution to the needs of different customers.
The VLP-25 is designed to meet the needs of the servo motor and other industries. Designed to be modified in order to provide a best-fit solution to the needs of different customers, it is ideal for motion control in drives, robotics and automation, industrial and automotive applications.
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