Handheld DMM works as a datalogger

Fluke's top of the range handheld DMM can increase the productivity of maintenance engineers when used in stand-alone mode to identify hard-to-find intermittent problems.

Fluke's top of the range, professional, handheld digital multimeter (DMM) is designed to increase the productivity of maintenance engineers when used in stand-alone mode to identify hard-to-find intermittent problems.

In conjunction with a standard accessory, the DMM can be padlocked while it captures and stores measurement data for later analysis with Fluke software.

The handheld Fluke 189 is a true-RMS digital multimeter that conforms to the latest safety categories and offers enhanced performance over other DMMs in terms of speed, accuracy and bandwidth.

The dual digital, backlit display is updated at 4Hz and also features a bargraph.

The main reading offers 50,000 counts, providing 1V resolution, 100kHz bandwidth on voltage and current readings, and 0.025% accuracy on DC voltage measurements.

Simultaneous readings can be displayed of other measurements such as frequency or decibels.

It also offers a relative mode, min/max/average recording with real-time stamp, and a fast min-max mode to capture events as short as 250s.

The Fluke 189 can be set up to capture and store up to 1000 measurements in stand-alone operation, allowing a user to collect information about a measurement over a period of time for later analysis.

The stored information is downloaded to a PC, via an infra-red serial cable, for further analysis using the optional FlukeView Forms software.

The 189 can also be used directly with a PC to log data continually using the same software.

FlukeView Forms software records, charts and graphs data to help perform an in-depth analysis.

The standard forms can easily be customised if required.

The Fluke LockPak security accessory fits into the back of the 189, allowing the meter to be securely fastened with a cable and padlock.

In the logging mode, the meter monitors all "changes" in the input signal and then stores a summary of those changes based on a timed interval as well as the stability of the measured signal.

The Fluke 189 can also store up to 100 separate readings.

This allows the user to make a series of measurements, using various functions of the meter, and review those readings at a later time either through the meter's display or on a PC using the FlukeView Forms software.

Primary and secondary readings, meter functions, and the corresponding icons, are all stored in the meter's memory along with a time stamp to indicate when the reading was taken.

The stored readings make it possible to retain measurements in the meter for comparison to current or "real time" measurements.

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