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1040 Resistance Decade Box Data Sheet

1040 Resistance Decade Box Data Sheet

Product catalog summary
Description: The Time Electronics 1040 Resistance Decade Box is a precision instrument designed for both industrial and educational use. It features a compact and durable design with a robust metal case and a removable protective rubber cover, making it suitable for laboratory or field use. The device offers excellent accuracy, with a mid-scale accuracy of 0.1%, achieved through high stability metal film resistors. It includes an 8-digit thumbwheel switch for easy and precise resistance setting, with color-coded digits for clear visual indication.
Specifications: The resistance range is from 1 Ω to 100 MΩ with 1 Ω steps. The accuracy varies across the decades, with a maximum of ±1% for the 1 Ω and 10 MΩ ranges, and ±0.1% for others. The maximum current ranges from 0.5 A to 3 μA depending on the decade. The device has a residual resistance of less than 250 mΩ, a power rating of 1 watt per resistor, and a maximum voltage rating of 250 V DC/AC RMS. It has a temperature coefficient of 50 ppm/ºC and dimensions of W 215 x H 100 x D 120 mm, weighing 1 kg.
Features: Key features include a wide resistance range, high accuracy, clear visual indication, high stability, low temperature coefficient, safety terminals, and a removable protective cover. It is suitable for both industry and education.
Common Applications: The 1040 is used for calibration of resistance in measuring devices, Pt100 simulation for checking RTD transmitters, select-on-test resistance substitution in circuit design, and educational understanding of Ohm’s Law.
Ordering Information: The product can be ordered as the 1040 Wide Range Resistance Decade Box, with optional accessories such as the 9026 carry case, and calibration certificates C161 (Traceable) and C114 (Accredited, ISO 17025).
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Catalog excerpts

1040 Resistance Decade Box Data Sheet-1

Time Electronics Description A precision wide range resistance decade box designed to meet the requirements of both industry and education. The 1040 is compact and durable, housed in a robust metal case with removable protective rubber cover, making it ideal for use in either the laboratory or field. Excellent accuracy (mid-scale 0.1 %) is achieved by using high stability metal film resistors. The 8-digit thumbwheel switch enables simple and precise setting with a clear indication of the resistance value. Switch Contacts: Special attention has been given to the reliability of operation. A special multiple gold contact arrangement ensures low contact resistance and continued operation even if a contact fails. Clear Visual Indication: To make selecting and reading the setting easy the 1040 incorporates colour coded digits: megohms - red, kilohms - yellow, ohms - white. Safety Terminals: Compatible with 4 mm shrouded plugs, as well as standard plugs, bare wires, and spade terminals. Added Protection: The 1040 comes fitted with an ergonomic rubber cover providing increased protection and durability. It has a textured grip for comfortable handling and side openings to place labels. It is easy to remove if the user prefers a stand-alone unit or to house the 1040 in the optional 9026 carry case. Features • 1 Ω to 100 MΩ • High accuracy • Clear visual indication • High stability • Low temperature coefficient • Safety terminals • Removable protective cover • Suitable for industry or education Common Applications • Calibration of resistance in measuring devices • Pt100 simulation for checking RTD transmitters • Select-on-test resistance substitution in circuit design • Educational understanding of Ohm’s Law Ordering Information Due to continuous development Time Electronics reserves the right to change specifications without prior notice. Time Electronics Ltd, Unit 5, T O N Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | mail@timeelectr

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