Resistance decade box 0-10 MOhm - 10 rotary switches, adjustable

Product Overview

• Adjustable resistance from 0 to 10 megaohms in decade steps
• Ten rotary switches for selecting resistance values
• Laboratory instrument for circuit development and test setups
• Precision resistance decade with a very wide range
• Accurate adjustment through decade steps without a slide control

Product Description

A resistance decade is an adjustable laboratory measuring instrument that allows resistances to be set in increments. This model covers the range from 0 ohms to 10 megaohms and uses ten independently switchable decades, each providing a decade step from the one-ohm range to the megaohm level. The device operates mechanically without electronics. Each rotary switch is manually set to the desired value, so the total resistance is the sum of all decade switch settings.

Typical applications include circuit development, where known resistance values need to be switched quickly between different components without soldering in a different physical component each time. In measurement technology, the decade is used to calibrate measuring instruments or adjust circuits. In education, the device also enables experiments with different resistance values without requiring a large assortment of components. Test benches for electronic components use decades to simulate load resistances.

No power supply is required for operation, as the device works purely passively. The measurement accuracy is in the per-mille range. The decade is connected via terminal sockets or clamps located on the top of the housing. Anyone who frequently switches between many resistance values benefits from the fast switching compared with conventional individual components. Note that the decade can only handle passive loads, so it is not suitable for temperature-dependent or active testing tasks.

Safety Notice

The device is a laboratory instrument for development and testing and must not be integrated into the household electrical circuit. For test setups involving mains voltage or higher voltages, all work must be carried out or supervised by a qualified electrician.

Scope of Delivery

• 1x programmable resistor, 0.1 Ω to 99.999.999 Ω