2: Performance verification DMM6500 6½-Digit Multimeter with Scanning
Calibration and Adjustment Manual
2-22 DMM6500-905-01 Rev. E June 2021
Equation for 0 °C to 850 °C temperature range
R
RTD
= R
0
(1 + AT + BT
2
)
where:
• R
RTD
is the calculated resistance of the RTD
• R
0
is the known RTD resistance at 0 °C
• T is the temperature in °C
• A = alpha [1 + (delta/100)]
• B = –1 (alpha)(delta)(1E-4)
The alpha and delta values are listed in the following table.
RTD parameters for equations
The RTD parameters for the Callendar-Van Dusen equations are listed in the following table.
DMM6500 resistance to temperature device (RTD)
Type Standard Alpha Beta Delta R
0
at 0 °C (Ω)
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