Thin Film RTD Elements

Platinum Resistance Temperature Detector

M 222

M series PRTDs are designed for large volume applications where long term stability, interchangeability and accuracy over a large temperature range are vital. Typical applications are Automotive, White goods, HVAC, Energy management, Medical and Industrial equipment.

Nominal Resistance R0	Tolerance DIN EN 60751 1996-07	Tolerance DIN EN 60751 20 09-05	Order Number Plastic Bag
100 Ohm at 0°C	Class A	F 0.15	32 208 550

The measuring point for the nominal resistance is defined at 8mm from the end of the sensor body.

Specification	DIN EN 60751 (according to IEC 751)
Temperature range	-70°C to +500°C (continuous operation)
	(temporary use to 550°C possible)
	Tolerance Class B: -70°C to +500°C
	Tolerance Class A: -50°C to +300°C
Temperature coefficient	TCR = 3850 ppm/K
Leads	Pt clad Ni- wire
	Recommend connection technology:
	Welding, Crimping and Brazing
Lead lengths (L)	10mm +/-1mm
Long-term stability	max. R₀-drift 0.04% after 1000h at 500°C
Vibration resistance	at least 40g acceleration at 10 to 2000 Hz,
	depends on installation
Shock resistance	at least 100g acceleration with 8ms half sine wave,
	depends on installation
Environmental conditions	unhoused for dry environments only
Insulation resistance	> 100 MΩ at 20°C; > 2 MΩ at 500°C
Self heating	0.4 K/mW at 0°C
Response time	water current (v= 0.4m/s): t_0.5 = 0.05s t_0.9 = 0.15s
	air stream (v= 2m/s): t_0.5 = 3.0s t_0.9 = 10.0s
Measuring current	100Ω: 0.3 to 1.0mA
	(self heating has to be considered)
Note	Other tolerances, values of resistance and wire lengths are available on request.

We reserve the right to make alterations and technical data printed. All technical data serves as a guideline and does not guarantee particular properties to any products.

Heraeus Thin Film and Wirewound

RoHS Conform