RdF Corporation
MET-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
-50°C to 232°C (-60°F to 450°F),
to 260°C (500°F) in dry applications.

Sensing Element
International grade thin film platinum,
a = 0.00385 Ω/Ω/°C per IEC 751 or
Industrial grade thin film platinum,
a = 0.00375 Ω/Ω/°C

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

Time Constant
(Water at 3ft/second)

0.125 Diameter = 1.1 seconds
0.187 Diameter = 2.0 seconds
0.250 Diameter = 3.1 seconds

Self-Heating
Greater than 25 mW/°C

Interchangeability
±(0.3°C + 0.005 |t|°C), IEC 751 Class B

Long Term Stability
Better than 0.05°C (0.02% of resistance)
per 5 years, –50°C to 200°C

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

   

Maximum Current
Should be limited to 2500 µW @ 0°C;
5 mA for 100 Ω units, 1.6 mA for 1000 Ω units

Recommended Current
1 mA maximum for temperature sensing

Moisture seal
Leads sealed against moisture
suitable for shallow immersion

Case Material
300 series stainless steel

Lead Materials
Nickel-plated copper wire,
insulated as follows:
#22 AWG TFE Teflon® rated to 260°C (500°F) for all 0.250" Diameter and 2 wire 0.187" Diameter units
#28 AWG TFE Teflon® rated to 260°C (500°F) for all 0.125" Diameter and 3 or 4 wire 0.187" Diameter units

Other Features
Strong welded leads, strain isolated, fully sealed, and full platinum RTD stability.

Teflon® is a registered trademark of the DuPont Corporation.

   
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