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            2/4-Channel Differential Input for

  Bridge Sensor within 24 Bit AD Converter

  Cdaq1224/1424

  FEATURES

 

    ¡Ü Input Range: ±2.5V, ±1.25V, ±39mV, ±19.5mV

    ¡Ü Input Channel: 2 Channel (Cdaq1224) / 4 Channel (Cdaq1424) Differential Input

    ¡Ü Resolution: 24 bit  80sps(Max.) AD Converter

    ¡Ü °¢Á¾ Bridge Sensor(¿Âµµ/¾Ð·Â/·Îµå¼¿ µî) Á÷Á¢ ¿¬°á°¡´É

    ¡Ü °¢ ä³Îº°·Î º°µµÀÇ +5V±0.1% @10mA High Precision Reference Voltage Á¦°ø

    ¡Ü Low-Noise PGA

    ¡Ü RMS Noise: 17nV at 10SPS(PGA=128), 44nV at 80SPS(PGA=128)

    ¡Ü External Watchdog Timer

    ¡Ü Command/Response Protocol: Modbus-RTU Protocol

    ¡Ü Communication Type: RS-485(2-wire) to host

    ¡Ü Max. Communication Distance: 4000 feet (1.2Km), 300mA/25V Bus-Pin Surge Protection

    ¡Ü Speed: 1200/2400/4800/9600/19200/38400/57600/115.2K bps

    ¡Ü Asynchronoud Data Format: 1 start bit, 8 data bit, 1 stop bit, no parity

    ¡Ü Power: +15Vdc¡­+30Vdc Regulated

    ¡Ü Size: 125mm×72.4mm

     

           

 

              

   DESCRIPTION

 

       Cdaq1224/1424´Â 24bit AD Converter¸¦ äÅÃÇÏ¿©, °¢Á¾ data ÃøÁ¤¿¡ ÀÖ¾î °íÁ¤¹Ð °í½Å·Ú¼ºÀÇ data¸¦ ¾òÀ» ¼ö ÀÖµµ·Ï ¼³°èµÇ¾ú´Ù. Cdaq1224´Â 2 ä

    ³Î Cdaq1424´Â 4 ä³ÎÀÇ Â÷µ¿ÀÔ·Â(Differential Input)À¸·Î ¼³°èµÇ¾î ÀÖÀ¸¸ç, °¢Á¾ ¿Âµµ, ¾Ð·Â, ·Îµå¼¿µîÀÇ Bridge Sensor¿ë¿¡ ÀûÇÕÇϵµ·Ï ¼³°èµÇ¾ú´Ù.

      10sps 128 PGA¿¡¼­ 17nV, 80sps 128 PGA¿¡¼­ 44nVÀÇ RMS Noise¸¦ °¡Áö´Â Low-Noise 24bit AD Converter´Â ¼¾¼­ÀÇ ¹Ì¼¼º¯È­°ªÀ» ¾ÈÁ¤ÀûÀ¸·Î Àо

    ¼ö ÀÖÀ» °ÍÀÌ´Ù. Cdaq1224/1424´Â ±2.5V, ±1.25V, ±39mV, ±19.5mVÀÇ ÀԷ¹üÀ§¸¦ °¡Áö°í ÀÖÀ¸¸ç, ¶ÇÇÑ °¢ ä³Îº°·Î º°µµÀÇ +5V±0.1% @10mA °íÁ¤¹Ð

   ±âÁØÀü¾Ð(Reference Voltage)À» Á¦°øÇÑ´Ù. ÀÌ ±âÁØÀü¾ÐµéÀº °¢ ¼¾¼­ÀÇ ±âÁØÀü¾ÐÀ¸·Î »ç¿ëÇÒ ¼ö ÀÖÀ¸¹Ç·Î »ç¿ëÀÚ´Â º°µµÀÇ ±âÁØÀü¾ÐÀ» »ç¿ëÇÏÁö ¾Ê

   °í¼­µµ °¢Á¾ ÃøÁ¤À» ¿øÈ°ÇÏ°Ô ¼öÇàÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù. ¶ÇÇÑ Cdaq1224/1424´Â ÃøÁ¤ÇÑ data¸¦ °¢ ÀÔ·Â ¹üÀ§ °ª ¾È¿¡¼­ º¯È¯µÈ °ªÀ¸·Î Àü¼ÛÀ» ¹Þ°Å³ª, ¶Ç

    ´Â º¯È¯µÇÁö ¾ÊÀº Hex °ªÀ¸·Î Á÷Á¢ Àü¼ÛÀ» ¹ÞÀ» ¼ö ÀÖÀ¸¸ç, º¯È¯µÈ °ªÀ¸·Î Àü¼ÛÀ» ¹ÞÀ» °æ¿ì¿¡ ÇÑÇÏ¿© º¯È¯µÈ °ª¿¡ »ç¿ëÀÚ°¡ ¼³Á¤ÇÑ ¾î¶² °ªÀÇ °öÀÇ °ª

    À¸·Îµµ Àü¼Û ¹ÞÀ» ¼ö ÀÖ´Â ±â´ÉµéÀÌ ¼³°èµÇ¾î ÀÖ´Ù. ÀÌ·¯ÇÑ ±â´ÉµéÀº »ç¿ëÀÚÀÇ ÀÛ¾÷·®À» Çö°ÝÇÏ°Ô °æ°¨½ÃÄÑÁÖ¾î º¸´Ù È¿À²ÀûÀ¸·Î ±×¸®°í ºü¸¥ ½Ã°£¿¡

    ½Ã½ºÅÛÀ» ±¸ÃàÇÒ ¼ö ÀÖµµ·Ï »ç¿ëÀÚ¸¦ µµ¿ÍÁÙ °ÍÀÌ´Ù.

      Cdaq1224/1424´Â Modbus-RTU Protocol¸¦ ±âº» Protocol·Î ÇÑ´Ù. ±×·¯³ª Á¦Ç°ÀÇ Ç°Áú Çâ»óÀ» À§ÇÏ¿© ¾à°£ÀÇ º¯È­¸¦ °¡Áö°í ÀÖ´Ù. ÇÏÁö¸¸ Modbus-RTU

    ProtocolÀ» Áö¿øÇÏ´Â ¿©Å¸ÀÇ ÀåÄ¡µé°ú ȣȯ¼ºÀ» °¡Áø´Ù.

 

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