The advantages of HEYI inductive proximity sensor is with high protection level of IP67, and various installation for different application used widewide such as metal proximity sensor, square type proximity switch, around square inductive proximity switch and so on. In order to keep a high accuracy, HEYI offer customised service like Water & Oil protection, Acid & Alkail protection, High Temperature protection and Double sensoring distance based on customers' requirement.
Plug-in proximity sensor is a updated one based on inductive proximity sensor. The tail of sensor body with a plug of 4 or 3 pins, whcih connects to the stock with cables. The stock has two types of straight one and 90° bend one as your choice. This desigh is safe and convenient to break the sensor body immediatle with stock and replaced with a new one if previous sensor is broken.
Capacity proximity sensor could not only detect metal, but also detect nonmetal objects. This decides capacitance proximity sensor could be used in more application than inductive proximity sensor such as Liquid Level measurement, Material level measurement, Plastic or Glass container measurement, Detect the tightness of conveyor belt and so on...
Photoelectric sensor is the use of light beam blocked or reflected by objects to detemine whether objects exisit or not. Thus photo sensor could detect metal and nonmetal objects, moreover its sensoring distance is much longer than other proximity switch. It includes Diffuse type, Retroreflictive type and through beam type choosed by customers in different application.
Light curtain sensor is applicable for the safety detection of automatic assemble line, elevator, danger restricted zone, metal forming machine, punching & shearing machine tool, paper cutter and so on. Adopting synchronism scanning technology, concentrated beam path, nonworking blind area, strong anti-interference ability, and convenient installation. Replaceable for similar products made by SICK, STI, KEYENCE, Honeywell Corp.
Color sensor applies the light emitting and receiving principle. It can serve for sensor in the automatic control systems for packing machine, printing machinery, texture and paper making machinery, etc and be used with other instruments to detect the existence of the object maked with color code, pattern code, line or others. It has the functions of self-locating, rectifying deviation, pattern checking and countering.
A Solid State Relay or SSR is a solid state electronic component that provides a function similar to an electromechanical relay but does not have any moving components, increasing long-term reliability. A solid-state relay uses athyristor, TRIAC or other solid-state switching device, activated by the control signal, to switch the controlled load, instead of a solenoid. Anoptocoupler (alight-emitting diode(LED) coupled with aphoto transistor) can be used to isolate control and controlled circuits.
As every solid-state device has a small voltage drop across it, this voltage drop limits the amount of current a given SSR can handle. The minimum voltage drop for such a relay is a function of the material used to make the device. Solid-state relays rated to handle as much as 1,200 amperes have become commercially available. Compared to electromagnetic relays, they may be falsely triggered by transients and in general may be susceptible to damage by extremecosmic relay and EMP episodes.
A PCB relay is a switch which uses an electromagnetic coil in order to close or open a circuit. Power relays also contain an armature, a spring and one or several contacts. If the power relay is designed to normally be open, when power is applied, the electromagnet attracts the armature, which is then pulled in the coil’s direction until it reaches a contact, therefore closing the circuit. If the relay is designed to be normally closed, the electromagnetic coil pulls the armature away from the contact, therefore opening the circuit.
Timing relays are arranged for an intentional delay in operating their contacts. A very short (a fraction of a second) delay would use a copper disk between the armature and moving blade assembly. Current flowing in the disk maintains magnetic field for a short time, lengthening release time. For a slightly longer (up to a minute) delay, adashpotis used. A dashpot is a piston filled with fluid that is allowed to escape slowly; both air-filled and oil-filled dashpots are used. The time period can be varied by increasing or decreasing the flow rate. For longer time periods, a mechanical clockwork timer is installed. Relays may be arranged for a fixed timing period, or may be field adjustable, or remotely set from a control panel. Modern microprocessor-based timing relays provide precision timing over a great range.
Relay is suitable for small electronic control equipment, household appliances, office automation, test, securitity and commercial machinary, general equipment, automobile, Machine tools, contruction, transportation equipment, instruments and meters, can be used as a remote control center convrersion or enlarge the original.
Power relays / power relay, is an input (or incentive) if certain conditions lay down are met, in one or more electrical output circuit jumps in a device. Can be used for direct system of neutral grounding, as a component in the direction of zero-sequence current protection.
