. Various guildline9330datasheet free download

File name guildline9330datasheet.pdf

Series 9330 Standard Resistors Very High Stability High Value Calibration Laboratory Standards G uildline series 9330 Standard Resistors contain hermetically sealed resistance elements. Its design is based on a thorough reappraisal of all earlier resistor designs, the aim of the program being the significant reduction of each "classical" source of error; temperature coefficients and variations therein; thermal as well as electrical time constants; thermal EMF's; and voltage and power coefficients. The resistance wire element is suspended in oil in a hermetically sealed case with a cover plate of low leakage acrylic. The connections to the resistance element are made in a four-terminal configuration, with the potential terminals mounted on the cover plate and the current terminals on the horns. All terminals are solid thermal copper to reduce thermal EMF's. Models 9330-10M & 100M have a cover plate made from Delrin acetyl thermoplastic and use a two-terminal configuration plus a ground terminal (no horns). Values below 10M are designed to be immersed in temperature controlled oil or air baths. The 9330 Series hermetically sealed resistance 9330 Features element design is based on a thorough > Stability < 3.5 ppm reappraisal of earlier designs. > Low thermal EMF design > Nominal Accuracy to < 2.5 ppm > Report of Calibration traceable to NIST or NRCC included > Available from 0.1 through 100M in decade values > 4-terminal design up to 1M > Special values available on request > Temperature Coefficient < 2 ppm/0 C > Hermetically sealed in oil > Designed for use in temperature controlled oil baths > Operating Range 18 0C to 40 0C 9330 Standard Resistors 9330 Series Specifications