Product category:
Hardware
News Release from: LEM Instruments | Subject: ANALYST Q70
Edited by the Buildingtalk Editorial
Team on 18 May 2004
Enhanced performance of power quality
analyser
LEM has upgraded its ANALYST Q70 hand-held power quality analyser.
Flash Technology enhances performance of Power Quality Analyser Key points: - Software upgrade increases the capability of ANALYST Q70
This article was originally published on Buildingtalk on 22 Jul 2005 at 8.00am (UK)
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- Improved user interface.
- Wider range of measurements.
- Increased recording memory.
Further reading
High-current, wide-bandwidth current probes
LEM has introduced the first of a new range of high frequency LEM~flex current probes.
Non-intrusive leakage-current measurement
LEM has introduced the HEME GEO 30 clamp-on ground tester to simplify ground-loop testing and provide non-intrusive leakage-current measurement.
LEM has upgraded its ANALYST Q70 hand-held power quality analyser.
The new facilities, which can be downloaded to the flash memory of existing units, offer an easier-to-use interface, an improved range of measurements and an improved recording function to provide simpler, longer recordings.
They can be uploaded to the ANALYST Q70 using the FLUP programme supplied with the instrument.
The new software offers an improved display of all measurement data and a new NAVKeys function guides the user around the instrument's measurements screen quickly and easily.
Recordings of 10 minute averages for more than 80 days are now possible, while up to 32,000 events may be captured.
A new 'multi-session' recording feature allows up to three separate recordings to be made and stored in the instrument.
The three recording areas can be combined to create one larger recording area for long-term recordings.
Over 20 new measurement parameters have been added, including harmonic power and phase angles for individual harmonics.
Combined with improved graphical display functions for waveform and harmonics bargraphs, data can be evaluated more easily.
Harmonics up to the 50th are presented with magnitude and phase information simultaneously.
The phase information provides vital clues as to which direction harmonics may be coming from, indicating which loads may be causing problems.
The new harmonics recording mode uniquely provides a stacked bargraph mode that shows the user the harmonics currently measured and the minimum and maximum values over the recording period.
A new 'Inrush' measurement allows characterisation of motor start-up.
By simply setting the current trigger level, it is possible to see what current is drawn during start-up and for how long.
This is particularly useful for the location of nuisance tripping of current protection devices.
The download software for the ANALYSTa Q70 has also been upgraded.
The PQLoga package offers one-step download and analysis; the in-built reporter automatically analyses data and prints reports to suit the user's requirements.
The ANALYST Q70 is supplied with a standard 3000A LEM~Flex flexible current probe, hard carrying case, voltage measuring leads, batteries, mains power adaptor and PQLog software.
LEM is a Swiss company serving markets connected with the transformation and use of electricity, particularly in the field of power electronics.
It designs, develops and manufactures high-performance solutions, ranging from active components to the most complex measuring systems.
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