DBX, DBQ, DBA, DBB High-Accuracy Decade Box User's Guide
■The Omega DB series of resistance decade boxes is a family of instruments providing a very broad choice of high-performance resistance sources. Any number of decades from one to eleven is available in a choice of accuracies.
■The Omega DB decade box is a precision resistance source with excellent characteristics of stability, temperature coefficient, power coefficient, and frequency response.
■The Omega DB Series employs very-low-resistance switches with silver alloy contacts. A special design keeps zero resistance to less than 1 mΩ per decade.Self cleaning keeps the silver contacts from becoming tarnished when unused, or when only low currents are passed through them. This is most often the case when only minute test currents are drawn by digital multimeters or other test instruments. Contact resistance is stable and remains low and repeatable.
■High-quality gold-plated tellurium-copper binding posts serve to minimize the thermal emf effects which would artificially reflect a change in dc resistance measurements. All other conductors within the instrument, as well as the solder employed, contain no metals or junctions that could contribute to thermal emf problems.
■The standard models offer a choice of one through eleven decades. The panels are clearly labeled showing the step size and maximum voltage and current limitations for each decade.
■With a resolution as low as 1 mΩ and a maximum available resistance of over 111 MΩ, the Omega DB series may be used for exacting precision measurement applications requiring high accuracy, good stability, and low zero-resistance. They can be used as components of dc and ac bridges, for calibration, as transfer standards, and as RTD simulators.
■The Omega DB Series may be rack-mounted to serve as components in measurement and control systems.
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DBX 、 DBQ 、 DBA 、 DBB 、 DBX-1-0.001 、 DBX-1-0.01 、 DBX-1-0.1 、 DBX-1-1 、 DBX-1-10 、 DBX-1-100 、 DBX-1-1K 、 DBX-1-10K 、 DBX-1-100K 、 DBX-1-1M 、 DBX-1-10M 、 DBX-2-0.001 、 DBX-2-0.01 、 DBX-2-0.1 、 DBX-2-1 、 DBX-2-10 、 DBX-2-100 、 DBX-2-1K 、 DBX-2-10K 、 DBX-2-100K 、 DBX-2-1M 、 DBX-3-0.001 、 DBX-3-0.01 、 DBX-3-1 、 DBX-3-0.1 、 DBX-3-10 、 DBX-3-100 、 DBX-3-1K 、 DBX-3-10K 、 DBX-3-100K 、 DBX-4-0.001 、 DBX-4-0.01 、 DBX-4-0.1 、 DBX-4-1 、 DBX-4-10 、 DBX-4-100 、 DBX-4-1K 、 DBX-4-10K 、 DBX-5-0.001 、 DBX-5-0.01 、 DBX-5-0.1 、 DBX-5-1 、 DBX-5-10 、 DBX-5-100 、 DBX-5-1K 、 DBX-6-0.001 、 DBX-6-0.01 、 DBX-6-0.1 、 DBX-6-1 、 DBX-6-10 、 DBX-6-100 、 DBX-7-0.001 、 DBX-7-0.01 、 DBX-7-0.1 、 DBX-7-1 、 DBX-7-10 、 DBX-8-0.001 、 DBX-8-0.01 、 DBX-8-0.1 、 DBX-8-1 、 DBX-9-0.001 、 DBX-9-0.01 、 DBX-9-0.1 、 DBX-10-0.001 、 DBX-10-0.01 、 DBX-11-0.001 、 DBX SERIES |
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User's Guide |
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Please see the document for details |
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