Cropico Resistance Standards Rs3 (10 Ohm, 100 Ohm, 1 Kohm), 30 Ppm

US $1,495.00

United States
Feb 14th

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CROPICO RS3 Resistance Standards (10, 100, 1000 ohm), 4 Terminal Construction, High Stability Resistance Standards, can be used in Air or Oil Bath, excellent load (mA) coefficient. Never used in as new condition Specs: RS3 SPECIFICATIONS Dimensions 160mm high x 90mm diameter approx Mass 0.9kg approx Resistance Elements Manganin or Zeranin depending on the value. 100 ohm, 1, 10 and 100 kilo ohm low inductance winding on brass formers with PTFE insulation. 0.1, 1 and 10 ohm bi-filar winding on cylindrical brass formers with PTFE insulation. 0.01, 0.001, and 0.0001 ohm resistance material in the form of straight rods or loops supported on 12 mm brass conductors Terminals Potential — Copper 4 mm Current — Brass Top Panel Bakelite marked with the value, class designation and serial number Case Light alloy, black anodized to give maximum heat radiation Thermometer Tube: Slotted extending the length of the resistance element Label Each standard is fitted with a label that describes its characteristic and operating parameters Model Value Uncertainty of Adjustment @20°C Uncertainty of Certification Temp Coeff Typical 15 to 20°C Stability Over 1 Year Dissipation Max in Air Watts Dissipation Max in Oil Watts Max. I in Air (Amps) Max. I in Oil (Amps) RS3/0001 0.0001 ? 0.02% ±200ppm 20ppm/°C 0.0025% 1 4 100 200 RS3/001 0.001 ? 0.01% ±50ppm 25ppm/°C 0.0025% 1 4 32 60 RS3/01 0.01 ? 0.01% ±25ppm 10ppm/°C 0.001% 1 4 10 20 RS3/02 0.02 ? 0.01% ±50ppm 10ppm/°C 0.001% 1 4 7 14 RS3/05 0.05 ? 0.01% ±50ppm 10pm/°C 0.001% 1 4 4.5 9 RS3/0.1 0.0.1 ? 0.003% ±25ppm 10ppm/°C 0.001% 1 4 3 6 RS3/1 1 ? 0.003% ±25ppm 10ppm/°C 0.001% 2 10 1.4 3 RS3/10 10 ? 0.003% ±25ppm 10ppm/°C 0.001% 2 10 0.44 1 RS3/25 25 ? 0.005% ±25ppm 10ppm/°C 0.001% 1 10 0.2 1 RS3/50 50 ? 0.005% ±25ppm 3ppm/°C 0.001% 1 10 0.1 0.3 RS3/100 100 ? 0.003% ±25ppm 3ppm/°C 0.001% 1 10 0.1 0.3 RS3/250 250 ? 0.005% ±25ppm 3ppm/°C 0.001% 1 10 0.1 0.1 RS3/1k 1k ? 0.003% ±25ppm 3ppm/°C 0.001% 1 10 0.03 0.030 RS3/10k 10k ? 0.003% ±25ppm 3ppm/°C 0.001% 1 10 0.01 0.03 RS3/100k 100k ? 0.003% ±25ppm 3ppm/°C 0.001% 1 1 0.003 0.003 RS3/1M M ? 0.01% ±25ppm 3ppm/°C 0.002% 1 1 0.0002 0.0002 Value in ohms Typical time constant 1 ? + 0.34µH/ ? 10 ? + 0.18µH/ ? 100 ? + 0.03µH/ ? 1k ? + 0.04µH/ ? 10k ? + 0.6µH/ ? The resistance standards type RS3 were primarily designed as DC standards, however values above 0.1 ohm are non inductively wound and the adjacent AC characteristics are typical

“Never used, in as new condition.”

Brand	Cropico
Country/Region of Manufacture	United Kingdom
Model	RS3