Safety Relay <br>Automation direct safety monitering relays are mainly applied to the safety control circuit, connecting the safety sensing elements and mechanical equipment motion controller. The working principle of safety relay interlock system: when there is a fault in the safety circuit, the intrinsic safe relay automatically detects the fault and stops the machine movement, to protect equipment and personnel safety. <br> <br>Chenzhu solid state safety rated relay is the first product to get PLe/Cat.4, SIL3 certified in China mainland. Automation and safety is the main character of the programmable safety relay module that you can be assured. <br> <br>Various safety relay products are available for you to select. We have safety relay for E-stop buttons, emergency stop buttons, two-hand control buttons. We also provide light curtain safety relay, sil 2 rated relay and sil 3 rated relays to better meet the needs of our customers. For more information, please feel free to contact us. <br> <br>Safety Relay Types <br>CZSR Classic Series Safety Relay <br>E-Stop Button, Safety Gate Safety Relay <br>Light Curtain Safety Relay <br>Two-hand Push Buttons Safety Relay <br>Safety Mat Safety Relay <br>Extension Module Safetu Relay <br> <br>CZSR Process Series Safety Relay <br>DO Signal (SIS) 24V DC 2A Safety Relay <br>DO Signal (SIS) 24V DC 3A Safety Relay <br>DO Signal (SIS) Input 24V DC 5A Safety Relay <br> <br>CZSR Smart Series Safety Relay <br> <br>FAQ of Safety Relay <br>Q <br>What is safety relay? <br>A <br>Safety relay offer an extra level of protection usually through a redundant wiring system. <br> <br>These relays are used to enable an monitor the signals between other safety devices such as safety switched sensors, light curtains, intrinsic safety barriers and isolators. In many cases, the safety relay can be paired with a safety PLC configurable safety relay or safety controller. <br> <br>Q <br>What is the difference between safety relay and normal relay? <br>A <br>Compared to a normal relay, a safety control relay have mandatory steering contact arrangement assures protection when contact fusion happens. A safety relay is a module composed of multiple relays and logic circuits. It is a circuit composition unit. In order to achieve the correct and low malfunction feature and to minimize errors and failure values, and complete each other&#039;s faults in a fault state to enhance safety factors. <br> <br>Q <br>How does an intrinsically safe barrier work? <br>A <br>Safety relays are generally composed of two or more relays and electronic circuits, so as to complement each other&#039;s abnormal defects. Even if any component fails, it can diagnose the failure and enter a safe state. And it will not affect the shutdown instructions issued to the machine, ensuring the safety of production. From the structural point of view, the safety relay generally adopts a dual-channel structure, and the channels can diagnose each other, and use a forced-oriented relay to realize the diagnosis of the output contact fusion fault. <br> <br>Q <br>How do safety relays improve safety? <br>A <br>Like electrical panel box surge protector, safety relays are devices that implement safety functions. When a danger occurs, the safety relay will play a role in reducing the danger to an acceptable level. When an error occurs, the safety relay will initiate a safe and reliable response. Each safety relay monitors a specific function. <br> <br>Q <br>What are the main applications of safety relays? <br>A <br>Suitable for the application of electromagnetic door lock switch to ensure the safety of the work area. <br> <br>It is suitable for the key to cooperate with the safety gate switch to detect the opening and closing of the door. <br> <br>Applicable to safety gates, detecting the position of the door, opening or closing applications. <br> <br>Suitable for light beam devices to prevent workers from entering the dangerous work area. <br> <br>Applicable safety mat switch to confirm that workers can safely enter the hazardous work area. <br> <br>Applicable E-stop buttons, in case of emergency, stop the machine operation. <br> <br>Q <br>What&#039;s the line monitoring function of Safety Relay? <br>A <br>Line monitoring is the basic function for safety relay which is used into SIS, which all CHENZHU automation direct safety relay offerred and built to PCB. Just input the DO signal and safety relay will check the test pulse automatically. When pulse error happens, safety relay will cut off the output so that to ensure SIF to work. <br> <br>CHENZHU manufactures the most reliable interface product for safety automation system. We are here to help your device run more safely. Here you can not only get world-class products, but also outstanding service for safety and automation system. <br>#mat#relay <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fsafety-mat-safety-relay.html%0A[/a]

Signal Conditioner <br>Universal signal conditioner is used in industrial process control systems. Isolated signal conditioner connects industrial field instruments and control systems to complete the function of signal matching and conversion. Through reliable isolation technology, the signal conditioning equipment resists various interference attacks and ensures the stability of the system and instruments in a complex electromagnetic environment. The isolated pt 100 signal conditioner of Chenzhu using special design achieves anti-interference among power supply, input, and output. At the same time, the signal conditioning isolation module/unit has a strong EMC performance that can work normally even under strong interference. <br> <br>So far, our signal conditioning amplifier for electronics, as a member of the whole safety automation system, has been applied to tens of thousands of industrial sites. And the stability of the control system escort, possessing the most complete models, has reached the international level. As one of the most professional signal isolator suppliers, Chenzhu promises to provide you good transducer signal conditioning and services! Different types of signal conditioning system for circuits can be offered by us, whether it&#039;s based on RTD loop powered digital isolator or DC Pt100 signal splitter with 4-20mA output current. If you want to know the price of our 5v to 24v PLC signal converter, please contact us as soon as possible. Related sensors and signal conditioning pdf files are also available for you to refer to. <br> <br>Signal Conditioner Types <br>CZ2000 Series Signal Conditioner <br>CZ2000 Analogue Signal Conditioner <br>CZ2000 Analogue Signal Conditioner Loop Power <br>CZ2000 Temperature Converter Signal Conditioner <br>CZ2000 Voltage/Current Input Signal Conditioner <br> <br>CZ3000 Series Signal Conditioner <br>CZ3000 Analogue Signal Conditioner <br>CZ3000 Analogue Signal Conditioner Loop Power <br>CZ3000 Temperature Converter Signal Conditioner <br>CZ3000 Pulse Input Signal Conditioner <br>CZ3000 Frequency Converter Signal Conditioner <br> <br>CZ3500 Series Bus powered Signal Conditioner <br> <br>What is the difference between 2-wire transmitter, 3-wire transmitter and 4-wire transmitter? <br>2-wire transmitter <br>2-wire transmitters are the simplest and most economical way to used them in the industrial field. The zero-end current is 4mA, which is sufficient to drive the transmitter&#039;s internal circuitry, while the current at 4-20mA represents the range of process transmissions measured. <br> <br>3-wire transmitter <br>Some transmitter require more power than the signal loop can supply their internal circuity. The three-wire current output can share a ground wire with the power supply, saving a wire. <br> <br>4-wire transmitter <br>Four-wire transmitters have their own internal power supply, and they do not need to be connected to a DC power supply. It has two power cords and two current output lines. The output of a 4-wire transmitter is usually a current signal. <br> <br>FAQ of Signal Isolators <br>Q <br>How to distinguish between the active and passive signals? <br>A <br>According to whether the signal acquisition loop needs an external power supply, <br> <br>Active signal：In the 4~20mA signal acquisition loop, the signal generating end has its own voltage drive and no external power supply equipment is needed. This 4~20mA is an active signal. Generally, 4-wire transmitter and 3-wire transmitter output active signals. <br> <br>Passive signal：In the 4~20mA signal acquisition loop, the signal generating end does not have its own voltage drive and external power supply equipment is needed. This 4~20mA is a passive signal. Generally, a 2 wire temperature transmitter outputs passive signals. <br> <br>Method of judging whether the external power supply is needed in the signal acquisition loop： <br> <br>Disconnect the signal acquisition loop, and connect a voltmeter to the two lines of the field device (voltage transmitter). If there is voltage, it means the field device outputs active signals. If there is no voltage, it means the field device outputs passive signals. <br> <br>Temperature Input Signal Type and Range <br> Range Min. Span Accuracy <br>Type <br>TC T -200℃~+400℃ 50℃ 0.5℃/0.1% <br> E -200℃~+900℃ 50℃ 0.5℃/0.1% <br> J -200℃~+1200℃ 50℃ 0.5℃/0.1% <br> K -200℃~+1372℃ 50℃ 0.5℃/0.1% <br> N -200℃~+1300℃ 50℃ 0.5℃/0.1% <br> R -40℃~+1768℃ 500℃ 1.5℃/0.1% <br> S -40℃~+1768℃ 500℃ 1.5℃/0.1% <br> B +320℃~+1820℃ 500℃ 1.5℃/0.1% <br>RTD Pt100 -200℃~+850℃ 20℃ 0.2℃/0.1% <br> Cu50 -50℃~+150℃ 20℃ 0.2℃/0.1% <br> Cu100 -50℃~+150℃ 20℃ 0.2℃/0.1% <br>mV -100mV~+100mV 10mV 20μV/0.1% <br>Potentiometer 0~5kΩ 0.10% <br> 0~10kΩ 0.10% <br> <br>Note of the data of loop powered isolators: <br> <br>1. The“%” of conversion accuracy is relative to its range. Take the larger value between the range error and the absolute error when applying. <br> <br>2. Allow a maximum wire resistance of 50Ω/line for RTD input(3-wire). <br> <br>3. When the thermocouple is input, the conversion accuracy does not include the CJC. For every 100Ω increase in the compensation wire, the cold junction error increases by 0.2°C. <br> <br>4. When the Type B thermocouple is input, the lower limit of temperature range is required to be greater than 680 °C to ensure the accuracy index. <br> <br>5. mV signal input needs to be customized. <br> <br>CHENZHU manufactures the most reliable interface product for safety automation system. We are here to help your device run more safely. Here you can not only get world-class products, but also outstanding service for safety and automation system. <br>#isolated#signal#conditioner <br> <br>[a]https%3A%2F%2Fwww.chenzhuisolator.com%2Fproducts%2Fsignal-conditioner%2F%0A%0A%0A[/a]