ETC 32.208.787

Platinum Resistance Temperature Detector
HM 220
HM 220 type platinum sensors are characterised by long-term stability, precision over a broad temperature range and
compatibility. The main feature is the small design. They are used in particular for applications with high consumption
volumes, e.g. white goods and heating power.
Resistance R0
100 Ohm at 0°C
Toler ance
DIN EN 60751
Class B
Class A
DIN EN 60751
F 0.3
F 0.15
Or der Number
32 208 787
32 208 788
The measuring point for the nominal resistance is defined at 6mm from the end of the sensor body.
DIN EN 60751
Temperature range
-70°C up to +600°C
Tolerance Class B: -70°C up to 600°C
Tolerance Class A: -50°C up to 300°C
Temperature coefficient
TCR = 3850 ppm/K
Pd alloy with Pt coating wire
Lead lengths (L)
8mm ±1mm
Long-term tests
R0- Drift after 1000h at 600°C (energized) < 0,24%
(Unhoused chip in standard atmosphere.)
Environmental conditions
Unhoused for dry environmental only
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
Insulation resistance
> 100 MΩ at 20°C; > 1 MΩ at 600°C
Self heating
0.2 K/mW
Response time
Water current (v= 0.4m/s):
Air stream (v=2 m/s):
t0.5 = 0.05s
t0.9 = 0.14s
t0.5 = 3.0s
t0.9 = 10s
Measuring current
0.1 to 1mA
(self heating has to be considered)
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 Sensor Technology USA
1901 Route 130
North Brunswick, NJ 08902
Phone 732-940-4400
Fax 732-940-4445
Name of document: 30910061 Index B
Status: 08/2010