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REFERENCE RESISTORS RR SERIES

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Description

ASL's RR series of 4 wire reference resistors offer high accuracy and stability at an economic cost. Designed specifically for use as a comparison standard for resistance thermometry on the ASL range of AC resistance bridges, the RR series may also be used in electrical standards laboratories.
In addition to standard fixed values, resistors can be supplied in any value between 1 and 1000 Ohms. Typical applications for the RR series are as transfer standards or reference source in temperature calibration or electrical standards laboratories.



Overview

Tolerance : 1 to 10 Ohms ±0.005% (50ppm)
10 to 100 Ohms ±0.0025% (25ppm)
100 to 1000 Ohms ±0.001% (10ppm)
Test certificate : ±5ppm
Optional calibration : ±5ppm per year
Temperature coefficient : 1ppm per °C
Frequency dependence : Typically 1ppm (0.25mK), up to 400Hz
Working temperature : 20°C, but within the range of 15°C to 40°C
Connection type : Full 4 wire to 4mm insulated terminals, plus earth connection to case.
Dimensions / weight : Diameter: 76.2mm, Height: 90mm, Weight: 1kg.
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