Fluke 9190A - Calibration Equipment

9190A
Operators Manual
4-16
Calibration Equipment
The equipment in Table 4-11 is required to complete the calibration procedure.
Table 4-11. External Reference Calibration Equipment Specifications
Classification Minimum Use Specifications
Four-Wire Resistors See Table 4-12
Voltage/Current Source Voltage: ± 6 ppm + 0.6 μV
Amperage: ± 40 ppm + 80 nA
Ice Point 25 °C, Stability: ±0.02 °C
Readout Accuracy: 0.0025 °C
Probe 0.02 °C at 25 °C
Thermocouples 0.025 °C at 25 °C
Type E characterized wire at 25 °C
Table 4-12. Standard Resistor Specifications
Resistance
(Ω)
U
S1
(k=1) U
S2
(k=1) U
T
(k=1) U
T
(k=2)
Reference
Resistor
Uncertainty
(ppm)
Reference
Resistor
Uncertainty
(Ω)
TCR
Uncertainty
(ppm)
TCR
Uncertainty
(Ω) Total Uncertainty (Ω)
0 -- 0.000040 -- -- 0.00004 0.00008
25 1.80 0.000045 0.3 0.0000075 0.000045 0.00009
100 2.00 0.00020 0.3 0.00003 0.000205 0.00041
200 2.65 0.00053 0.3 0.00006 0.00055 0.0011
400 2.65 0.00106 0.3 0.00012 0.0011 0.0022