RTD Company: Point Sensing RTDs

HVAC RTDs - Point Sensing
Temperature Limits		Moderate (M) Range RTDs
		-50 to 250 °C (-58 to 482 °F)
Element Resistance		100 Ohms at 0 °C with tolerances of :
		Class A +/-.06% @ 0°C
		Class B +/-.12% @ 0°C
		Class C +/-.5% @ 0°C
Temperature Coefficient		.0038500 Nominal Temperature Coefficient
		Class A: Change in T = +/-(.15°C + 002\|t\|)
		Class B: Change in T = +/-(.30°C + 005\|t\|)
		Class A: Change in T = +/-(1.3°C + 005\|t\|)
Time Constant		Six seconds maximum for 63.2% response to change in temperature per ASTM E644

Repeatability		Less than +/-.06% change in ice point resistance after 10 consecutive cycles between ice point and 250 °C

Long Term Stability		Less than +/- .02% ice point resistance shift after 1000 hours at 250 °C

Self Heating		10 mW/°C in water moving at 3 feet/sec.
Hysteresis		+/-.15% of Span Temperature

		Class 500 Rigid General Purpose	Configure
		To detect temperature changes at a point of contact.

		Class 501 1/2 X 1/2 NPT Adj Compression Fitting	Configure
		Used to detect temperature changes at a point of contact.

		Class 502 Crimped Twin Thd Hex Fitting	Configure
		Used to detect temperature changes at a point of contact.

		Class 503 Crimped Process Thd Hex Fitting	Configure
		Used to detect temperature changes at a point of contact.

		Class 504 Conduit Box	Configure
		Used to detect temperature changes at a point of contact.