ESI TegamSR1010 电路图.pdf

The SR1010 meets or exceeds all of the requirements for resistance transfer standards in precision measurement applications. It is easily configured to transfer resistances up or down a decade from their initial resistance value. When used with the connecting networks and shorting bars, it provides 1 ppm transfer accuracies. Each transfer standard contains twelve equal value precision resistors connected in series by specially designed true 4-terminal junctions. These special junctions assure that a 4-terminal measurement of a series of resistors agrees with the sums of the individual resistors in the series. Accurate parallel connections can be made with the Parallel Compensation Network and the Shorting Bars connected to the junctions. These standards can be connected to provide three decade values: 10 resistors in series, 10R: 9 resistors in series parallel, 1R: and 10 resistors in parallel, R/10. The part per million accuracy is assured as the series value is equal to 100 times the parallel value to better than 1 ppm. The series parallel value relative to either the series value or the parallel value can be found to better than 1 ppm by making a 1:1 comparison with the remaining tenth resistor and a simple calculation. The accuracy and precision of the individual resistors also make the Model SR1010 ideal for use as a multi-value standard resistor or reference voltage divider. Resistance Transfer Standards Each device configurable to 10R, 1R, and R/10 Accuracy of transfer better than 1 ppm Six models, decade values from 1 /step to 100k /step Establish decade resistances from 0.1 to 1M Calibration readings traceable to NIST are provided Prices and specifications subject to change without notice. YOUR GLOBAL SOURCE FOR TEST AND MEASUREMENT SOLUTIONS R E S I S T A N C E S T A N D A R D S 1, 10, 100 k /step Accuracy Transfer*(1 ppm + 0.1 ) at parallel value for 100:1 transfer (1 ppm + 1 ) at series-parallel value for 10:1 transfer Initial20 ppm of nominal value matched with in 10 ppm Long-Term 50 ppm of nominal value Calibration10 ppm Calibration Conditions 23 C, low power, four-terminal measurement Temperature Coefficient 5 ppm/C matched within 3 ppm/C for 100 and higher 1 ppm/C for 10 15 ppm/C matched within 5ppm/C for 1 Power Coefficient 0.1 ppm/mW per resistor for 100 and higher 0.02 ppm/mW per resistor for 10 0.3 ppm/mW per resistor for 1 Maximum Power Rating 1/step or 5 W distributed over 10 resistors Breakdown Voltage 1500 V peak to case Leakage Resistance Greater than 1012 from terminal to case R E S I S T A N C E T R A N S F E R S T A N D A R D S Model SR1010 Calibration Data Initial calibration readings are affixed to instrument Dimensions Height 11.20 cm (4.4 in) Width 31.00 cm (12.2 in) Depth 10.15 cm (4.0 in) Weight1.5 kg (3.25 lb) Included Accessories ManualP/N 8502 Z540 Compliant Calibration for SR1010 with Certificate and Data P/N OPT-Z540 Optional Accessories Shorting BarsP/N SB103 Series Parallel Compensation Network P/N SPC102 Parallel Compensation Network P/N PC101 *10 standard is SR1010/LTC *Do not exceed 1500 V to case *With Model SB103 and Model PC101 or SPC102 One Resistor Alone 10 Resistors in Parallel R/10 10 Resistors in Series 10R Initial Accuracy: The specifications stated in the TEGAM instrument catalogs and data sheets are intended as acceptance specifications and are guaranteed for 60 days from the date of shipment. They are typically maintained for a much longer period of time. Long-Term Accuracy: These specifications are guaranteed for the standard warranty period, and are typically maintained for the life of the instrument. Long-term accuracy is implied when not otherwise stated. Calibration Accuracy: Calibration accuracy is the accuracy of TEGAM calibration data relative to the legal units maintained by the U.S. National Institute of Standards and Technology. 10 TEGAM WAY GENEVA, OHIO 44041 440-466-6100 FAX 440-466-6110 e-mail: YOUR GLOBAL SOURCE FOR TEST AND MEASUREMENT SOLUTIONS RadioFans.CN 收音机爱 好者资料库