User Manual

Model 42270/75 42260/65 Version 3.1 December 2004
7
RANGE Knob
Use the Range knob to select the number of readings represented on the display graph. If
the knob is set to ‘50’, fifty readings will be shown on the display graph. With the knob set
to ‘2K’, two thousand readings will be represented on the display graph.
Cursor 1 and 2
Cursor 1 and Cursor 2 (red and green vertical lines on main software screen grid) can be
used to select a region of data (click and drag to select data). Selected readings are
between the two cursors. Click on a cursor line to select it (its color will turn bold). The
Cursor Location field (lower left) shows the cursor positions. As the arrow keys are used to
select the last record or the next record, the location numbers change to reflect the new
position.
Left arrow key Moves to previous point on the current plot.
Right arrow key Moves to next point on the current plot.
<Shift> left arrow Moves back 10 points on the current plot.
<Shift> right arrow Moves ahead 10 points on the current plot.
<Home> Moves to first visible point on the current plot.
<End> Moves to last visible point on the current plot.
Zoom and Pan on Graphs
To zoom in on a data point, <ctrl> left click on the desired point. The view resolution
increases until the mouse is released. To zoom out, right click the data point.
To pan, <ctrl-shift> click on the desired data point and drag to another point. The graph
view scrolls so that the original point now appears under the new mouse location. Drag the
mouse anywhere on the screen, even beyond the view port.
RECORD NO. / TIME Switch
This switch is located just below the center of the graph on the main software screen.
When in the RECORD NUMBER position, the data will be plotted against each record
number 1 through n (n = total number of records). When in the TIME position, data is
plotted against the time of day that the readings were logged.
Previous Setting
Click on Previous Setting to download data from another datalogger without first closing
the program.
Company Logo
The company logo at the top right hand corner of the main software screen can be
customized. Please contact Extech for further information.
Message Board
The field on the bottom left hand corner of the main software screen is reserved for
program alerts, instructions, and messages. The software will instruct the user; please
observe this field during operation for helpful hints, instructions, and messages.
Download Commands
The Download area of the main software screen (bottom, center) is used to START and
STOP the transfer of the data from the Datalogger to the program. Press EXIT to return to
the normal operation mode.
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