DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
Section 2: Performance verification
DMM6500-905-01 Rev. E June 2021
2-25
14.
Repeat for 100 Ω and 190 Ω source
values.
Example
PT100
R
0
1.02
alpha
3.850550E-03
beta
1.086300E-01
delta
1.00
A
3.908304E-03
B
-5.775440E-07
C
-4.182852E-12
Nominal
calibrator
value
(Ω)
Actual calibrator
value
(Ω)
Temperature
(°C)
4-wire RTD
3-wire RTD
±0.06 °C accuracy
(±Ω from actual
calibrator value)
±0.75 °C accuracy
(±Ω from actual
calibrator value)
19
18.999520
-198.8900
0.0259
0.3241
100
99.99707
-0.0075
0.0235
0.2932
190
189.99234
238.6775
0.0218
0.2725
Resistance verification
Use the following information to verify the performance of the DMM6500 resistance functions.
Four-wire resistance verification
To verify the 4-wire resistance function, you will:
•
Use shielded, Teflon-insulated or equivalent cables in a 4-wire configuration.
•
Characterize the calibrator 1 Ω and 10 Ω nominal values with an external reference digital
multimeter (DMM); verify accuracy from the reference DMM readings.
•
For the 100 Ω to 100 MΩ ranges, verify accuracy from actual calibrator source valu
es.
•
Verify that the displayed readings are within specified limits.
Summary of Contents for KEITHLEY DMM6500
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