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

Temperature Range
29272: –200°C to 232°C
(–320°F to 450°F)
29280: –200°C to 260°C
(–320°F to 500°F)

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

Ice Point Resistance
100±0.12Ω or 1000±1.2Ω;
IEC 751 Class B (±0.12%)

Time Constant
<0.3 Seconds on metal surfaces

>25 mW/°C immersed

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

Long Term Stability
Better than 0.05°C (0.02Ω) per 5 years, above –50°C

Insulation Resistance
>50 MegOhms at 50VDC at 25°C

Maximum Current
100Ω = 5mA, 1000Ω = 2mA
for limited self heating

Recommended Current

Carrier Material

Lead Materials
Stranded copper cable
insulated as follows:
22 AWG tin-plated, (2-wire) FEP Teflon® over each twisted black/red, FEP overall.
24 AWG tin-plated, (3-wire) FEP Teflon® over each twisted white/2 red, FEP overall
26 AWG nickel-plated, PFA Teflon®, 2 white, 2 white/brown, or 2 white/2 red fused parallel


0.3" wide x 0.8" long x 0.05" thick,
0.11" diameter cable
0.25" or 0.30" (4-wire) wide x 0.5"
long x 0.05" thick,
0.04" thick flat cable

Teflon® is a registered trademark of the DuPont Corporation.

products proudly manufactured in the USA Specialists in Temperature Measurement
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