AppNote: Examples of data recorded by our Loggers

AppNote: Examples of data recorded by our Loggers.

Last reviewed: February 20, 2009
Article ID: 050223sab

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).

discharge ot two three cell nicad batteries

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).

Graph showing temperature with expanded period around transient

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.

Graph showing a single transient on a three phase supply

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).

A graph showing a recording of a single phase supply using a PM3000

Example 5: A PM7000 recording a single phase supply during a power outage.

This graph shows the line voltage recorded on a single phase nominal 240 volt supply. The measurement point was at the incoming Junction Box at Outram Research. On the 9 of February 2009 we experienced a power cut and this event was faithfully captured on one of our Power Master series of Loggers the PM7000 that was recording at the time.
To download the Pronto Project (.pdb) file containing this data click Here (Please be aware this is a large download at 7654 Kbytes).

A graph showing a recording of a drop-out done using a PM7000

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