Answer Posted / md gulfraj alam
sorry sir my english is touch week .. first take a multimeter and set in resistance mode and measure the rtd.if 100 ohm resistance at 0° centigrade then rtd pt-100 is ok near value 99-101 ohm resistance.and same case in pt50,pt25,pt500,pt100 etc only value is isolated of all rtd.otherwise rtd is damage when not match the value..i hope u understanding my ans.thank you
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