User's Manual

PC Software for 1740 Series

Viewing Live Readings

You can view live readings to gain assurance that the data being logged is going to be

useful, and the settings and current probe range is correct. To view live readings:

1. Connect the PC to the Logger while the logging is active.

2. Click on the

icon or select “Online data from the Logger” from the Logger

menu. A strip chart display shows data from any channel you select to view.

You can monitor nearly all parameters, although Flicker (Plt) and min/max-values are not

available. Flicker (Pst) shows 5-second values. For all other parameters, 200 ms values

are displayed.

There is a stripchart on the screen which is updated in about 1-second intervals,

depending on the data transmission speed and the PC response time. PQ Log maintains

about 17 minutes of stripchart data in memory, and then writes over older values.

The buttons for time and y-axis scaling are:

Buttons Descriptions

Scales the Y-axis according to the extreme values. This is useful if the curve

leaves the visible area of the diagram during test

Allows you to add or delete additional parameters to or from the diagram

Activates the application oriented analysis. This feature groups parameters to

view based on the particular problem you are trying to resolve. For more details

refer to “PQ Log Feature Reference” section

Presents recorded data in a table format. The table is not updated automatically

Toggles the auto scroll function (the diagram is scrolled automatically if active)

Suspends the ONLINE display of data

Note

As long as the Online test is active, no communication to Logger is possible

because the serial port is occupied. You can print the stripchart by

selecting File>Print document from the menu bar.

Advanced (Optional) Logger Settings

The preceding setup procedures are the minimum necessary to carry out a logging

session. Other Logger settings that you can specify are explained below.

Settings – User Preferences

The settings menu presents choices for the following:

• Setting of limits (thresholds) for events

• Selection of an “Application oriented analysis” template

• Choice of colors for timeplot traces

• Your choice of language