Fluke 5520A - 1-12. Resistance Specifications

Introduction and Specifications
Specifications
1
1-11
1-12. Resistance Specifications
Range
Absolute Uncertainty, tcal ± 5 °C
± (ppm of output + floor) [2]
Resolution Allowable
[1]
ppm of output
Floor
Time & temp since ohms zero
cal
Ω Current [3]
90 days 1 year 12 hrs ± 1 °C 7 days ± 5 °C
0 to
10.9999 Ω
35 40 0.001 0. 01 0.0001 1 mA to 125 mA
11 Ω to
32.9999 Ω
25 30 0.0015 0.015 0.0001 1 mA to 125 mA
33 Ω to
109.9999 Ω
22 28 0.0014 0.015 0.0001 1 mA to 70 mA
110 Ω to
329.9999 Ω
22 28 0.002 0.02 0.0001 1 mA to 40 mA
330 Ω to
1.099999 kΩ
22 28 0.002 0.02 0.001 1 mA to 18 mA
1.1 kΩ to
3.299999 kΩ
22 28 0.02 0.2 0.001 100 µA to 5 mA
3.3 kΩ to
10.99999 kΩ
22 28 0.02 0.1 0.01 100 µA to 1.8 mA
11 kΩ to
32.99999 kΩ
22 28 0.2 1 0.01 10 µA to 0.5 mA
33 kΩ to
109.9999 kΩ
22 28 0.2 1 0. 1 10 µA to 0.18 mA
110 kΩ to
329.9999 kΩ
25 32 2 10 0.1 1 µA to 0.05 mA
330 kΩ to
1.099999 MΩ
25 32 2 10 1 1 µA to 0.018 mA
1.1 MΩ to
3.299999 MΩ
40 60 30 150 1 250 nA to 5 µA
3.3 MΩ to
10.99999 MΩ
110 130 50 250 10 250 nA to 1.8 µA
11 MΩ to
32.99999 MΩ
200 250 2500 2500 10 25 nA to 500 nA
33 MΩ to
109.9999 MΩ
400 500 3000 3000 100 25 nA to 180 nA
110 MΩ to
329.9999 MΩ
2500 3000 100000 100000 1000 2.5 nA to 50 nA
330 MΩ to
1100 MΩ
12000 15000 500000 500000 10000 1 nA to 13 nA
[1] Continuously variable from 0 Ω to 1.1 G Ω.
[2] Applies for a 4-WIRE compensation only. For 2-WIRE and 2-WIRE COMP, add 5 µV per Amp of stimulus current
to the floor specification. For example, in 2-WIRE mode, at 1 k
e
, the floor specification within 12 hours of an ohms
zero cal for a measurement current of 1 mA is:
0.002
e
+ 5 µV/1 ma = (0.002 + 0.005)
e
= 0.007
e
[3] For currents lower than shown, the floor adder increases by:
Floor (new) = Floor (old) XImin/Iactual.
For example, a 50 µA stimulus measuring 100
e
, has a floor specification of: 0.0014
e
X 1 mA/50 µA = 0.028
e
,
assuming an ohms zero cal within 12 hours.