July 2003Analytical Instrumentation & Environmental Monitoring
The UPM6001 Universal Power Meter, available from Timecount, is a compact, portable analyser for measuring electrical parameters on single, two and three phase systems, as well as on DC systems. Measuring ranges are 600 V a.c. (phase to phase), current 1, 2, 3 and 10 V r.m.s. (via clamp-on CTs), direct current 1, 5, 20 A. Voltage and current transformers are programmable.
The unit performs as a watt/energy meter, harmonics analyser, network anomalies recorder and can calculate power factor compensation. It is an extremely versatile data recorder and can record up to 10 different types of measured data each with different start and stop times.
There are approximately 12 ways of configuring the UPM6001, all-programmable from the menu, allowing measurement of single, bi, and three phase systems and earth leakage current. In the single-phase configuration it is also possible to measure DC current.
The instrument is equipped with removable memory (contained in a sliding holder on the instrument's panel), which allows data to be installed and recorded in the field, and downloaded to a PC using the optional flash card reader FLREAD.
There is a wide range of graphic functions: waveform, Fresnel diagram, harmonic content and profiles of the daily energy consumption with min/max values. UPM6001 measures and records both odd and even harmonics to the 31st order. Harmonics are displayed both in tabular and graphical formats with the spectrum analysis for both voltage and current. The THD for current and voltage for all channels in both percentage and absolute values can be displayed.
The 40-column built-in graphical printer offers a wide range of printouts to allow the user to print the results on-site. The instrument can be operated from a wide range of voltages (85-265 V a.c. or 90-350 V d.c.) without any need for the operator to change the voltage selection. A built-in battery provides backup power for more than one hour. The battery is automatically recharged when the instrument is re-connected to the mains power supply.
For more information contact Jos Laurencik, Timecount, 011 882 3105, timecount@icon.co.za
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