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#Product Trends

Hioki Launches Memory HiCorder MR8870-20

Nagano, Japan

Hioki E.E. Corporation is pleased to announce the launch of the Memory HiCorder MR8870-20.

There has traditionally been a need in the facility maintenance field for the ability to measure supply voltage as an RMS waveform. To accommodate this need, Hioki developed the MR8870-20 by adding functionality for recording RMS waveforms (RMS recorder mode) as well as functionality for simultaneously recording measured values onto an optional CF card to an existing product (the 8870-20).

In the past, paper-based recording devices were used to record RMS waveforms. Hioki aims to leverage the new MR8870-20, which can record measurement data directly in its internal memory, to popularize paperless RMS measurement.

Development Background and Process

In the past, compact instruments designed to record electrical signal waveforms on paper were used in the facility maintenance field as a way to make it easy for engineers to measure data wherever they needed to. However, the need to limit expenditures on recording paper and to manage measurement data electronically has recently driven demand for Memory HiCorders and other instruments capable of recording measurement data in internal memory.

At the same time, there is a need for instruments that are able to measure supply voltage as an RMS waveform. In such applications, the goal is to continuously record supply voltage data over extended periods of time so that engineers can continually ascertain whether measured values diverge from anticipated values, which delineate normal operation. Any such divergence suggests that the equipment in question may be malfunctioning.

Based on these needs, Hioki developed the Memory HiCorder MR8870-20 by adding functionality for recording RMS waveforms (RMS recorder mode) and functionality for saving data in real time to an existing model (the 8870-20). The latter capability allows the instrument to simultaneously record measured values onto an optional CF card.

Principal Applications

* Facility maintenance - Measurement of momentary outages and voltage drops in commercial power supplies [50 Hz/60 Hz] and long-term recording of RMS values

* Analysis of anomalies in DC voltages that are input to and output from uninterruptible power supplies (UPS)

* Analysis of issues with sequence control equipment

Details

  • HIOKI E.E. CORPORATION

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