![STZ](img/mii/stz.jpg)
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![](img/mii/Exida_logo.jpg)
STZ (Functional Safety Dual Input Smart HART Temperature Transmitter) ´Â ÃÖ´ë SIL3 capable (Exida) ½áƼ¸¦ ȹµæÇÑ, dual sensor (RTD, T/C, mV, Ohm, Potentio meter) ½ÅÈ£¸¦ ¹Þ¾Æ 4-20mA (HART) Ãâ·ÂÇÏ´Â ¿Âµµ Àü¼Û±â (º¯È¯±â) ÀÔ´Ï´Ù.
Built-in button ¹× PC programÀ» ÀÌ¿ëÇÏ¿© ¼Õ½±°Ô ÇöÀå¿¡¼ ÇÊ¿äÇÑ ±â´ÉÀ» ¼³Á¤ÇÏ¿© »ç¿ëÇÒ ¼ö ÀÖ´Â Universal Temp. Transmitter (¹ü¿ë ¿Âµµ Àü¼Û±â) ·Î¼, input-to-output analog accuracy °¡ ±0.014 ¡É ·Î¼ Á¤¹ÐÇÑ ÇÁ·Î¼¼½º¿¡ Àû¿ë°¡´ÉÇϸç, ºÐÇØ´ÉÀº 20bit¸¦ Àû¿ëÇÏ¿© RTD ±0.1¡É (±0.05¡É, Pt1000RTD)¸¦ Áö¿ø ÇÒ »Ó¸¸ ¾Æ´Ï¶ó, HART 7 ¿¡ HART Access Control (Read Only ¶Ç´Â Off mode)¸¦ Àû¿ë º¸¾È±â´ÉÀ» ÃÖ´ëÈ ÇÏ¿´½À´Ï´Ù.
Dual sensor input ±â´ÉÀ» Àû¿ëÇÔÀ¸·Î¼, Backup, Failover Protection, Average, Differential ÃøÁ¤À̶óµçÁö, ¶Ç´Â High / Low selection ±â´ÉµîÀ» ÀÌ¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù.
´ÙÀ½¿¡ ¸î°¡Áö Àû¿ë ¿¹¸¦ º¸ÀÔ´Ï´Ù.
![](img/mii/sta-fig1.jpg)
![](img/mii/stz-fig2.jpg)
Ãâ·ÂÀ¸·Î 4-20mA ¹× HART ½ÅÈ£¸¦ Á¦°øÇϹǷΠHART communicator¸¦ ÀÌ¿ëÇÏ¿© Á¡°Ë, ±³Á¤µîÀÌ °¡´ÉÇÕ´Ï´Ù.
![](img/mii/stz-fig3.jpg)
ÀÔ·Â´Ü ¼¾¼ Áø´Ü±â´É (diagnostic) Àº ¼¾¼°¡ fail ÇßÀ» ¶§ upscale/down scale½ÅÈ£ ¿Í ´õºÒ¾î HART error message¸¦ Ãâ·Â Çϸç, ¸¸¾à RTD¸¦ »ç¿ëÇÏ´Â °æ¿ì´Â ¸î ¹ø wire°¡ ´Ü¶ô µÈ°ÍÀÎÁö±îÁö È®ÀÎÇØ ÁֹǷΠº¸¼ö½Ã°£À» ÃÖ¼ÒÈ ÇÒ ¼ö ÀÖ½À´Ï´Ù.
![](img/mii/stz-fig4.jpg)
ÇÁ·Î¼¼½º ¿Âµµ ÃøÁ¤ÀÌ Áß¿äÇÑ °æ¿ì´Â Trim ±â´ÉÀ» »ç¿ëÇÏ¿© ÇöÀå¼¾¼ÀÇ Æ¯¼º¿¡ ÃÖÀûÈ Æ©´×À» ÇÒ ¼ö°¡ ÀÖ¾î »ý»ê¼º Çâ»ó, Á¤È®ÇÑ Á¦¾îµîÀ» Çà ÇÒ ¼ö ÀÖ½À´Ï´Ù.
![](img/mii/stz-fig5.jpg)
ÀÌ·± ¸ðµç ±â´ÉµéÀ» ¾ÆÁÖ ¼Õ½±°Ô configuration ÇÒ ¼ö ÀÖ½À´Ï´Ù. ÇØ´ç ÆÄÀϵéÀ» ÀúÀåÇؼ ÃßÈÄ ±³Ã¼µîÀÌ ¹ß»ýÇÒ °æ¿ì °£´ÜÈ÷ ´Ù¿î·Îµå ÇÔÀ¸·Î½á ¸ðµç ¼Â¾÷ÀÌ ³¡³³´Ï´Ù.
![](img/mii/stz-setup.jpg)
¡á
¹ü¿ë ÀÔ·Â(mV, Ohm, Potentio-meter, T/C, RTD)
¡á 20bit ÀÔ·Â ºÐÇØ´É ¡á HART 7 compatible ¡á ¼¾¼Á¡°Ë±â´É
(T/C ¹× RTD¼¾¼ÀÌ»ó)
»ç ¾ç |
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ÀÔ·Â
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¡¡ |
-50 ~ 1000mV, 0 ~ 4,000 ¿È
T/C:J,K,E,T,R,S,N,B,C
RTD
(2,3,4 Wire): (3850,
3902, 3916
) Ni120, Cu10 ÀÔ·ÂÀúÇ× : 40 ¸Þ°¡¿È |
Ãâ·Â
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¡¡ |
4 - 20mA (500 ohm), HART
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Á¤È®µµ
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¡¡ |
±3§Ë,
Cold Junction : ±0.25 µµ¾¾
±âŸ ÀÚ¼¼ÇÑ »çÇ×Àº »ç¾ç¼ ÂüÁ¶
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Isolation |
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500Vrms
Input-Output |
ÁÖº¯ ¿Âµµ
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¡¡ |
-40 ~ +85 µµ¾¾
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