Fluke 754 - Resistance-Temperature Detectors (Rtds)

Documenting Process Calibrator
Measure Mode
39
Resistance-Temperature Detectors (RTDs)
The Product accepts RTD types shown in Table 8. RTDs are characterized by their resistance at 0 °C (32 °F), which is called
the “ice point” or R
0
. The most common R
0
is 100 Ω. A large number of RTDs come in a three-terminal configuration. The
Product accepts RTD measurement inputs in two-, three-, or four-wire connections. See Figure 17. A four-wire configuration
gives the highest measurement precision, and two-wire gives the lowest measurement precision.
Table 8. RTD Types Accepted
RTD Type Ice Point (R
0
) Material α Range (°C)
Pt100 (3926) 100 Ω Platinum 0.003926 Ω/Ω/°C -200 to 630
Pt100 (385)
[1]
100 Ω Platinum 0.00385 Ω/Ω/°C -200 to 800
Ni120 (672) 120 Ω Nickel 0.00672 Ω/Ω/°C -80 to 260
Pt200 (385) 200 Ω Platinum 0.00385 Ω/Ω/°C -200 to 630
Pt500 (385) 500 Ω Platinum 0.00385 Ω/Ω/°C -200 to 630
Pt1000 (385) 1000 Ω Platinum 0.00385 Ω/Ω/°C -200 to 630
Cu10 (427) 9.035 Ω
[2]
Copper 0.00427 Ω/Ω/°C -100 to 260
Pt100 (3916) 100 Ω Platinum 0.003916 Ω/Ω/°C -200 to 630
[1] Per IEC 751-Standard
[2] 10 Ω @ 25 °C
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