CR This range of low cost 4 terminal calibration resistors combine high accuracy, class 0.02, long term stability and permanence of calibration in a compact unit. Constructed using carefully selected low temperature coefficient Manganin or Zeranin wire, depending upon value and mounted to ensure mechanical stability, these resistors will provide a cost effective addition to any laboratory or workshop. Typical applications include calibration reference, accurate current measurement instrument calibration and accurate shunt resistors. HIGH ACCURACY, COST EFFECTIVE 4 TERMINAL CALIBRATION RESISTOR CR SPECIFICATIONS Resistance Decades & Standards Dimensions 38mm x 97mm x 41mm (61mm with terminals - approx) Mass 250g approx Nominal Value Accuracy ±% Temp Coeff Max Current in Air Nominal Voltage @ Potential Teminals CR/0.001 CR/0.01 CR/0.1 CR/1 CR/10 CR/100 CR/1k 0.05 0.03 0.02 0.02 0.02 0.02 0.02 10ppm/°C 10ppm/°C 10ppm/°C 2ppm/°C 2ppm/°C 2ppm/°C 2ppm/°C 30mV 140mV 500mV 1.5V 5V 15V 45V 30A 14A 5A 1.5A 0.5A 0.15A 45mA Type 1m½ 10m½ 100m½ 1½ 10½ 100½ 1k½ key feature CR Low capacitance and low inductance design n High accuracy 0.02% n Suitable for direct current & technical frequencies n Oil-filled design ensures great long-term stability <±0.01% over many years n Bracken Hill, South West Industrial Estate, Peterlee, County Durham, SR8 2SW United Kingdom Tel: +44 (0) 191 586 3511 Fax: +44 (0) 191 586 0227 Email: [email protected] Web: www.cropico.com