Measurements International Model 6200A

6200A Cryogenic Current Comparator (CCC)

Best uncertainty of < 3 parts in 10^-9
Resistance Range 0.1 Ω to 1 MΩ
Maximum Ratio 1000:1
Helium re-condensing unit for continuous operation
No liquid helium supply required
Front panel or Computer Controlled Operation

Specifications
Data sheet

Specifications

Range (1:1 Ratio)	Accuracy (µΩ/Ω)	Range (1:10 Ratio)	Accuracy (µΩ/Ω)	Range (1:100 Ratio)	Accuracy (µΩ/Ω)
0.1 Ω to 0.1 Ω	0.01	0.1 Ω to 1 Ω	0.01	1 Ω to 100 Ω	0.003
1 Ω to 1 Ω	0.003	1 Ω to 10 Ω	0.003	10 Ω to 1 kΩ	0.003
10 Ω to 10 Ω	0.003	10 Ω to 100 Ω	0.003	100 Ω to 10 kΩ	0.003
100 Ω to 100 Ω	0.003	100 Ω to 1 kΩ	0.003	1 kΩ to 100 kΩ	0.005
1 kΩ to 1 kΩ	0.003	1 kΩ to 10 kΩ	0.003	10 kΩ to 1 MΩ	0.01
10 kΩ to 10 kΩ	0.003	1 kΩ to 13 kΩ	0.003
100 kΩ to 100 kΩ	0.005	10 kΩ to 100 kΩ	0.005
1 MΩ to 1 MΩ	0.01	100 kΩ to 1 MΩ	0.01

Data sheet

6200A Cryogenic Current Comparator (CCC) | Datasheet