RdF Corporation
R-CAP // RTD CAPSULES
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Overview of RdF Temperature Sensor Applications
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Overview  Performance Specs   Ordering Specs 
  Performance Specifications
   

Operating Temperature Range
TFF Teflon® leads:
–200°C to 260°C (–320°F to 500°F)
Kapton® leads:
–200°C to 350°C (–320°F to 660°F)
Fiberglass leads:
–75°C to 510°C (–100°F to 950°F)
Moisture resistant:
–50°C to 200°C (–60°F to 390°F)

Sensing Element
International grade thin film platinum,
a
= 0.00385 Ω/Ω/°C per IEC 751

Ice Point Resistance
100±0.12Ω or 1000Ω±1.2Ω;

Time Constant
(Water at 3ft/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
Greater than 15 mW/°C

Interchangeability
±(0.3°C @ 0°C + 0.005 |t|°C)
IEC 751 Class B above –50°C

Long Term Stability
Better than 0.05°C (0.02% of resistance) per 5 years, –50°C to 300°C, 0.25°C per year to 540°C

Insulation Resistance
Greater than 50 Megohms at 50 VDC
at 25°C

Maximum Current
100Ω=5 mA, 1000Ω=2 mA
for limited self-heating
Also suitable as self-heated sensors

Recommended Current
1 mA maximum for temperature sensing

Moisture Seal
Moisture resistant
0.187 and 0.125 diameters rated 300 PS1. Consult factory.

Case Materials
Alumina on 0.187, 0.125, and 0.086 dia.
Polyimide (350°C) on 0.098 dia.

Lead Materials
Nickel-coated copper-insulated as follows:

22/28 AWG Fiberglass
rated to 510°C (950°F)
for 0.187/0.125 diameter

22/28 AWG TFE Teflon®
rated to 260°C (500°F)
for 0.187/0.125 and 0.098 diameter

28 AWG Kapton®
rated to 350°C (660°F)
for 0.098/0.086 diameters

Teflon® is a registered trademark of the DuPont Corporation.

   
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products proudly manufactured in the USA _ Specialists in Temperature Measurement
 
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