Two formats of PT100 thermoresistors in Honeywell DCS systems
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The PT100 thermistor comes in two display formats at Honeywell: one is the German format, which matches the display on the reference table. There is also a Japanese standard version, which is 3 degrees smaller than the reference table; everyone should be aware of this
This post was last edited by liuei on 2010-12-13 at 23:28. Those who are familiar with HONEYWELL know that when configuring, DINRTD should generally be chosen instead of JISRTD; there are also two other options: Ni120 and Cu10
Is DINRTD the German standard, and JISRTD the Japanese standard? I don’t understand
DIN stands for German Industrial Standards, while JIS refers to Japanese Industrial Standards
This post was last edited by liuei on 2010-12-14 at 17:55. These two standards are related to the purity of the platinum material used in manufacturing RTDs; the purer the platinum, the higher the resistivity. The resistive temperature coefficient specified in DIN43760 is 0.00385, while that specified in JIS C 1604-1989 is 0.003916. JIS C 1604-1997 has the same value as DIN, and it is in line with the IEC751 standard. In previous years, the platinum material used for RTDs in China was relatively pure, with a resistivity of 0.00392; nowadays, products manufactured comply with the DIN standard