The SR1010 series are extremely precise and stable resistance transfer standards. They may be used as as a multi-value standard resistor or reference voltage divider. Their superior stability make them particularly suitable for calibrating 6-1/2, 7-1/2 and 8-1/2 digit digital multimeters. The SR1010s may be used on a lab benchtop as well as out in the fi eld. The SR1010 Series utilize a set of 12 hermetically sealed resistors which are matched for temperature coeffi cient. For high resistance transfer standards, consider the IET/esi SR1050 For oil fi lled resistance transfer standards consider the IET/esi SR1030

• Resistance Transfer Standards available in the following values 1 Ω, 10 Ω, 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ
• Initial Accuracy... ± 20PPM of nominal value matched within 10PPM
• Transfer Accuracy... ± (1PPM + 0.1uΩ at parallel value) for 100:1
• Transfer Accuracy... ± (1PPM + 1uΩ at series parallel value) for 10:1
• Long Term Accuracy... ± 50PPM of nominal value
• Calibration Accuracy... ± 10PPM

Features

• Each device confi gurable to 10R, 1R, and R/10
• Accuracy of transfer better than 1 ppm
• Six models, decade values from
• 1 W/step to 100k W/step
• Establish decade resistances from 0.1 W to 1M W
• Calibration traceable to the SI through an NMI
• IET Labs continues to manufacturer the SR1010 to the same exacting specs as esi/Tegam