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China, Chinese 8-Way Ntc Thermistor Temperature Conversion to RS232 Support Ntc5K/10K/20K/100K1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
SensorTemperature Humidity SensorNtc5K/10K/20K/100KNtc Thermistor
Shenzhen Weijunrui Technology Co.,Ltd
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Product Description8-way NTC thermistor temperature conversion to RS-485/232, dataacquisitionmodule WJ226Product Overview:The WJ226 product realizes signal acquisition between sensors and hosts, used to detect NTC thermistortemperature signals. The WJ226 series products can be applied in industrial automation control systems withRS-232/485 bus, NTC thermistor temperature signal measurement, industrial field signal isolation, and long-distancetransmission, etc. The product includes power isolation, signal isolation, linearization, A/D conversion, and RS-485 serialcommunication. Each serial port can connect up to 255 WJ226 series modules, and the communication methodadoptsASCII code communication protocol or MODBUS RTU communication protocol. The baud rate can be set bycodeandcan be hung on the same RS-485 bus as control modules from other manufacturers, making it easy for computerprogramming.The WJ226 series products are intelligent monitoring and control systems based on microcontrollers. All user setcalibration values, addresses, baud rates, data formats, parity checks, and other configuration information are storedinnon-volatile memory EEPROM. The WJ226 series products are designed and manufactured according to industrial standards, with isolationbetweensignal inputs/outputs, capable of withstanding 1000VDC isolation voltage, strong anti-interference ability, andhighreliability. The working temperature range is -40 ℃ to+85 ℃Product selectionWJ226 - Z - TInput type: NTCTemperaturerange: Tcommunication interfaceNTC1KNTC5KNTC10KNTC20KNTC50KNTC100KOther NTCT1: -20-100℃T2: 0-100℃T3: 0-150℃T4: 0-200℃T5: 0-400℃Tu: User defined232: Output as RS-232 interface485: Output as RS-485 interfaceSelection Example 1: Model: WJ226-NTC10K-T1-485 indicates Input: NTC10K, Temperature Range: -20~100℃,Output: RS-485Selection example 2: Model: WJ226-NTC20K-T4-485 indicates input: NTC20K, temperature range: 0~200℃, outputis RS-485Selection example 3: Model: WJ226-NTC3K-Tu-232 indicates input: NTC3K, temperature range: 0~50 ℃, outputisRS-232Company ProfileShenzhen Weijunrui Technology Co., LtdSince: 2011Specialty: The company's main products include analog acquisition modules, signal isolators/conversion modules, and signal transmittersCapacity: Produce 10000 per monthAdvanced Features:Switching to TCP/network/remote IO module, Modbus RTU to TCP, RS232/485 to Ethernet, analog signal (current/voltage/thermistor/frequency/displacement/speed/pulse) isolation transmitter, mV differential signal amplifier, isolation amplifier, micro power DC-DC module power supply, etcFunction Introduction:WJ226 General Parameters:The WJ226 signal isolation acquisition module can be used to measure eight NTC thermistor signals. 1, Analog signal input12 bit acquisition accuracy, 8-channel NTC thermistor signal input. All signal input ranges have beencalibratedbefore the product leaves the factory. Users do not need to calibrate. 2, Communication ProtocolCommunication interface: 1 standard RS-485 communication interface or 1 standard RS-232 communicationinterface, please specify when ordering and selecting. Communication Protocol: Supports two protocols, the character protocol defined by the command set andtheMODBUS RTU communication protocol. The module automatically recognizes communicationprotocols and can achieve network communication with various brands of PLCs, RTUs, or computermonitoring systems. Data format: 10 digits. 1 start bit, 8 data bits, and 1 stop bit. The communication address (0-255) and baud rate (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) canbeset;The communication network can reach a maximum distance of 1200 meters and is connectedthroughtwisted pair shielded cables. High anti-interference design of communication interface, ± 15KV ESD protection, communication responsetimeless than 100mS. 3, anti-interferenceChecksums can be set as needed. There is a transient suppression diode inside the module, which caneffectivelysuppress various surge pulses, protect the module, and the internal digital filter can also effectively suppresspowerfrequency interference from the power grid.(Typical @+25 ℃, Vs is 24VDC)Input type: NTC thermistor inputAccuracy: 0.1%Temperature drift: ± 50 ppm/℃ (± 100 ppm/℃, maximum)Bandwidth: -3 dB 10 HzConversion rate: 5 Sps (factory default value, users can modify the conversion rate by issuing commands.)You can set the AD conversion rate to 2.5 SPS, 5 SPS, 10 SPS, and 20 SPS by sending commands. (Channelconversion rate=AD conversion rate/number of open channels)Note: Please recalibrate the module after modifying the conversion rate, otherwise the measured data mayhavedeviations. You can also specify the conversion rate when placing an order, and we willrecalibrate the product according to the conversion rate you require when it leaves the factory. Common mode rejection (CMR): 120 dB (1k Ω Source Imbalance @ 50/60 Hz)Normal mode suppression (NMR): 60 dB (1k Ω Source Imbalance @ 50/60 Hz)Input protection: overvoltage protection, overcurrent protectionCommunication: RS-485 or RS-232 standard character protocol and MODBUS RTU communication protocolBaud rates (2400, 4800, 9600, 19200, 38400, 57600, 115200bps) can be selected by softwareThe address (0-255) can be selected by softwareCommunication response time: 100 ms maximumWorking power supply:+8~32VDC wide power supply range, with internal anti reverse and overvoltage protectioncircuitsPower consumption: less than 1WWorking temperature: -40~+85 ℃Working humidity: 10~90% (no condensation)Storage temperature: -40~+85 ℃Storage humidity: 10~95% (no condensation)Isolation withstand voltage: 1KVDC between input/output, 1 minute, leakage current 1mAThe RS-232/RS-485 output and power supply are grounded together. Surge resistant voltage: 3KVAC, 1.2/50us (peak)Dimensions: 120mm x 70mm x 43mmFAQQ: How to contact you?A: Please contact us via email or online customer service
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