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Keysight rolls out rugged, long-battery life, handheld DMMs

12 Nov 2015

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Keysight Technologies Inc. has rolled out two series of handheld digital multimetres (DMMs). In addition to offering the capabilities and measurement functions needed for the electronics and industrial test segments, the U1280 series and U1240C series handheld DMMs are extremely rugged and come with extended battery life to allow users to test and log data over a longer period of time.

With 60,000-count display resolution and 0.025 per cent accuracy, the U1280 series is Keysight's highest performance handheld DMMs. These 4.5-digit handheld DMMs offer the precision, accuracy and repeatability engineers need to meet the toughest requirements for electronics manufacturing, installation and maintenance work in the electronics test industry, stated the company.

The U1240C series 4-digit handheld DMMs come with 10,000-count display resolution and 0.09 per cent accuracy, and provide a broad range of measurement functions for installation and maintenance work in industrial facilities. The U1240C series also comes with unique features such as ZLOW and harmonic ratio. ZLOW provides low impedance mode to eliminate stray voltages. The harmonic ratio function gives an indication of the presence of harmonics.

U1280 series and U1240C series handheld DMMs

U1280 series and U1240C series handheld DMMs

The U1280 series and U1240C series are very robust and are suited for operation in the field. These handheld DMMs are certified to IP 67 for complete protection against dust and immersion of water up to 1m, and are capable of withstanding up to a 3m drop. Additionally, the U1240C series is CAT IV 600V and CAT III 1kV compliant to improve user safety in electrical testing and measurement. Both series of handheld DMMs come with extended battery life, 800 hours for the U1280 series and 400 hours for the U1240C series, so users can continue testing for longer periods of time. This is especially important for industrial test engineers whose ultimate goal is to keep the production line running seamlessly to prevent unplanned shutdowns.

For advanced functions and data logging capabilities, engineers can use the Handheld Metre Logger software, which is available at This PC software allows users to automatically log data in a trend plot or table format, or to manually log each measurement with a touch of a button. Subsequently, users can convert the logged data into various test report formats. For remote monitoring, the U1280 series and U1240C series are compatible with the Keysight remote link solution, enabling safer and more convenient testing in hazardous environments.

The U1280 series 4.5-digit handheld DMMs and U1240C series 4-digit handheld DMMs are available worldwide, at the following prices: (the U1281A True RMS 60,000-count handheld DMM at $450 while the U1282A True RMS 60,000-count handheld DMM (comes with Vsense and square wave output) is at $500; the U1241C True RMS 10,000-count handheld DMM is at $280 while the U1242C True RMS 10,000-count handheld DMM (comes with ZLOW, harmonic ratio, Vsense) is at $300).

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