Platinum RTD Capsules


Platinum RTD Capsules | RTDCAP Series

Platinum RTD Capsules

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  • 4 Temperature Ranges Available
  • 100 or 1000 Ω Available
  • Ceramic (Alumina) or Plastic Capsules
  • 540° C, 1000° F Range
  • 2-, 3- and 4-Wire Configurations as Noted
  • Moisture Resistant Available in Some Models
  • Fiberglass, Polyimid or PTFE Leads, Standard Lead Length is 40 Inches
Sondas, elementos e conjuntos para RTD (PT100) - Ver Produtos Relacionados


Ready to use platinum RTD capsules have insulated lead wires welded and anchored internally. No splicing to fragile elements is required. This construction assures reliable rugged embedment, insertion or probe assembly. Tip diameters from 0.086 to 0.125". Standard sensors and encapsulation materials rated up to 540°C (1000°F). Choose the moisture resistant version for condensing conditions.

Standard Lead Length: 40 Inches
Operating Temperature Range:
    TFE Leads: -200 to 260°C (-320 to 500°F)
    Polyimide Leads: -200 to 350°C (-320 to 660°F)
    Fiberglass Leads: -75 to 510°C (-100 to 950°F)
    Moisture Resistant: -50 to 200°C (-60 to 390°F)
Sensing Element: International grade thin film platinum, a = 0.00385 Ω/Ω/°C per IEC 60751
Ice Point Resistance: 100.00±0.06Ω or 1000.0±0.6Ω at 0°C
Time Constant (Water at 3'/Second):
    0.086 Diameter = 0.5 seconds
    0.098 Diameter = 0.6 seconds
    0.125 Diameter = 0.8 seconds
    0.187 Diameter = 1.5 seconds
Self-Heating: Less than 15 mW/°C
Interchangeability/Accuracy: Class A (±0.15+.002*|t|°C [where |t|= absolute value of temperature in °C]) between -50 and 300°C, Class B above and below these temperatures
Long Term Stability: Better than 0.05°C (0.02% of resistance) per 5 years, -50 to 300°C (-58 to 572°F), 0.25°C per year to 540°C (1004°F)
Insulation Resistance: Greater than 50 Megohms at 50 Vdc at 25°C (77°F)
Maximum Current: 100 Ω = 5 mA, 1000 Ω = 2 mA for limited self-heating; also suitable as self-heated sensors
Recommended Current: 1 mA maximum for temperature sensing
Case Materials: Alumina on 0.125 and 0.086 diameter, Polyimide [350°C (662°F)] on 0.098 diameter
Lead Materials, Nickel-Coated Copper-Insulated:
    28 AWG Fiberglass: Rated to 510°C (950°F)
    28 AWG TFE: Rated to 260°C (500°F)
    28 AWG Polyimide: Rated to 350°C (660°F)
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