Fluke 702 - RTD Measurement

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Users Manual
36
Using Resistance-Temperature Detectors
(RTDs)
The calibrator accepts RTD types shown in Table 6.
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
. Most RTDs come in a three-
terminal configuration. The calibrator accepts RTD
measurement inputs in two-, three-, or four-wire
connections. A four-wire configuration provides the
highest measurement precision, and two-wire
provides the lowest measurement precision.
Table 6. RTD Types Accepted
RTD TYPE ICE POINT (R
0
) MATERIAL α RANGE (°C)
Pt100 (3926) 100Ω Platinum 0.003926Ω/°C -200 to 630
*Pt100 (385) 100Ω Platinum 0.00385Ω/°C -200 to 800
Ni120 120Ω Nickel 0.00672Ω/°C -80 to 260
Pt100 (3916) 100Ω Platinum 0.003916Ω/°C -200 to 630
Pt200 (385) 200Ω Platinum 0.00385Ω/°C -200 to 630
Pt500 (385) 500Ω Platinum 0.00385Ω/°C -200 to 630
Pt1000 (385) 1000Ω Platinum 0.00385Ω/°C -200 to 630
Cu 10 (427) 9.035Ω ** Copper 0.00427Ω/°C -100 to 260
*Per IEC 751-Standard **10Ω @ 25°C