AppNote: Examples of data recorded by our Loggers.

Last reviewed: February 23, 2005

This page contains plots of data recorded by various data Loggers. All these graphs were produced using Pronto for Windows our data download and analysis package. The original data is also available in Pronto Project format for download. (a copy of Pronto for Windows is required to view the project contents).

Example 1: The discharge of a 3 cell nicad battery pack.

This data shows the terminal voltage of two different three cell nicad battery packs discharging into a 2.2 ohm resistor. This data was recorded by one of our first generation Loggers, the Ranger 2.
To download the Pronto Project (.pdb) file containing this data click Here (66 Kbytes).

Example 2: The outside temperature over eight days.

This shows the outside temperature over an eight day period. Despite this relatively long recording time our patented adaptive store data compression algorithm faithfully captured a transient lasting only a few seconds while still keeping the total size of the recorded data to around 56 Kbytes. This data was recorded by one of our first generation Loggers, the Ranger 2.
To download the Pronto Project (.pdb) file containing this data click Here (109 Kbytes).

Example 3: A recording of voltage and short term Flicker for a single phase supply using a PM1000.

This shows the voltage and the short term 10 minute flicker ( IEC 61000-4-15 ) for a single phase supply. This data was recorded by one of our Power Master series of Loggers the PM1000.
To download the Pronto Project (.pdb) file containing this data click Here (1510 Kbytes).
The Pronto Project contains a weeks recording from a PM1000 at a house in which the occupants had complained of voltage fluctuations, but on initial investigation by the Utility Company, the voltage had been found to lie within limits (216V to 253V). The recording showed that although the voltage was indeed almost entirely within limits, there were nevertheless very significant fluctuations causing serious Flicker. Furthermore the lack of association between instantaneous Flicker Sensation activity and the current being measured showed clearly that the Voltage fluctuations responsible for the Flicker were occurring upstream of the measurement point. This is an example of the use of the Instantaneous Flicker Sensation signal for diagnosis, which cannot be provided by the Short and Long term Perceptibility results.

Example 4: A recording of a single phase supply.

This data shows the line voltage recorded on a single phase nominal 240 volt supply. The measurement point was in the offices of a PCB assembly plant. This office was suffering problems with some of the IT equipment. The graph shows a 20 volt dip between 7:35 and 7:50 am, this coincided with an increasing load from the assembly equipment in the Plant. This data was recorded by one of our Power Master series of Loggers the PM3000.
To download the Pronto Project (.pdb) file containing this data click Here (878 Kbytes).

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Last reviewed: February 23, 2005
© 2005 Outram Research Ltd. All rights reserved.