Temperature Sensors HEL-700
Platinum RTDs
86
Honeywell 1MICRO SWITCH Sensing and Control 11-800-537-6945 USA 1F1-815-235-6847 International 11-800-737-3360 Canada
FUNCTIONAL BEHAVIOR
RTJR0(1+AT+BT2−100CT3+CT4)
RT JResistance (V) at temperature T (°C)
R0JResistance (V) at 0°C
T JTemperature in °C
A Ja+ad B J−ad C
T<0J−ab
100 10021004
CONSTANTS
Alpha, a(°C-1) 0.00375 0.003850
±0.000029 ±0.000010
Delta, d(°C) 1.605 ±0.009 1.4999 ±0.007
Beta, b(°C) 0.16 0.10863
A (°C-1) 3.81×10-3 3.908×10-3
B (°C-2)−6.02×10-7 −5.775×10-7
C (°C-4)−6.0×10-12 −4.183×10-12
Both bJ0 and C J0 for T>0°C
RESISTANCE VS TEMPERATURE CURVE
ACCURACY VS TEMPERATURE
HEL-700 platinum RTDs are available in two base resistance trim
tolerances: ±0.2% or ±0.1%. The corresponding resistance
interchangeability and temperature accuracy for these toler-
ances are:
Tolerance Standard ±0.2% Optional ±0.1%
Temperature ±DR* ±DT±DR* ±DT
(°C) (V)(°C) (V)(°C)
−200 6.8 1.6 5.1 1.2
−100 2.9 0.8 2.4 0.6
0 2.0 0.5 1.0 0.3
100 2.9 0.8 2.2 0.6
200 5.6 1.6 4.3 1.2
300 8.2 2.4 6.2 1.8
400 11.0 3.2 8.3 2.5
500 12.5 4.0 9.6 3.0
600 15.1 4.8 10.4 3.3
*1000VRTD. Divide DR by 10 for 100VRTD.
CAUTION
PRODUCT DAMAGE
The inherent design of this component causes it to be sensitive
to electrostatic discharge (ESD). To prevent ESD-induced
damage and/or degradation, take normal ESD precautions
when handling this product.
SPECIFICATIONS
Sensor Type Thin film platinum RTD;
R0J1000 V@0°C; alpha J0.00375 V/V/°C
R0J100 V@0°C; alpha J0.00385 V/V/°C
Temperature Range −200 to +540°C (−300 to +1000°F)
Temperature Accuracy ±0.5°C or 0.8% of temperature, °C (R0±0.2% trim), whichever is greater
±0.3°C or 0.6% of temperature, °C (R0±0.1% trim), whichever is greater (optional)
Base Resistance and
Interchangeability, R0±DR0
1000 ±2 V(±0.2%) @ 0°C
1000 ±1 V(±0.1%) @ 0°C (optional)
Linearity ±0.1% of full scale for temperatures spanning −40°to +125°C
±2.0% of full scale for temperatures spanning −200°to +540°C
Time Constant <0.15 seconds in water @ 3 ft./sec.
<1 second on metal surfaces: <4 seconds in air @ 10 ft./sec.
Operating Current 2 mA max. For self-heating errors of 1°C
1 mA recommended
Stability Better than 0.25°C/year: 0.05°C/5 years for occupied environments
Self-Heating 0.3 mW/°C
Insulation Resistance >50 MV@ 50 VDC @ 25°C
Case Material 99% alumina support, vapor deposited alumina passified resistance portion, refractory glass
passified overall
Lead Material – Ribbon Platinum ribbon, 0.002 ×0.010 ×0.16 in. long nominal
Lead Pull Strength – Ribbon 200 grams nominal pulling up from surface