EASY
SENSE Vu+ Reference Manual DO255 (3)
22
Data Harvest Group Ltd.
3. Click on the
Start
/Stop icon to begin recording. The graph trace will be redrawn continuously
on the screen until you click on the Start/
Stop
icon when the trace will ‘freeze’.
Timing
Timing is used to allow students to study Time, Velocity, Acceleration, Momentum and
Kinetic Energy relationships using switch-type (digital) sensors such as Light gates
connected to input A or A and B.
A wizard will open with the recording options available (these will depend on the user level selected).
When the selection has been made, click on Finish.
Click on the
Start
/Stop icon and a reading will be displayed when a change is detected in signal
from the digital sensors.
Click on the Start/
Stop
icon to stop data being recorded.
Counting
(Level 1 and 2 USB connection only)
Use to count events by using switch-type (digital) sensors. The program will open pre-set to
display a count as a number and horizontal bar graph.
Click on the
Start
/Stop icon each time the state of a sensor is changed to On e.g. by pressing a
push switch, the number of counts will advanced by one.
Click on the Start/
Stop
icon to stop data being recorded.
Setup Remote
Use to program Vu+ to capture data for a set time span while disconnected from the computer
(remote). The collect data is stored in Vu+
’s
memory to be retrieved by the computer at a later stage.
The window will open a logging wizard.
If EasySense is set to
Level 1
: -
1. Deselect the tick next to any sensors from which readings are not required. Next.
2. Select the total recording time, Finish.
3. The settings will be downloaded to Vu+
and a message on the computer will inform ‘The logger is
now set up for remote logging’. Click on OK.
Vu+ can now be disconnected from the computer and placed in its recording position. Recording will
start when the enter button
►
on Vu+ is pressed and stop when the selected time span has passed.
Note:
If you want to stop a recording before it has finished, press the stop
button and follow the instructions on
the display.
If EasySense is set to
Level 2 or 3
:
1. Deselect the tick next to any sensors from which readings are not required. Next.
2. Select the total recording time and the interval between the samples being taken, Next.
3. Select the condition required for the recording to start i.e.
When Enter pressed -
the recording will start as soon as you press the
►
button on Vu+
.
Trigger on Level
– the recording will start when the sensor selected is above, below, rises above
or falls below a set level e.g. when the value from a Temperature sensor rises above 25
C.
Trigger on Digital Condition
– the recording will start when a digital sensor connected to A or
B is On, Off, rising to On or falling to Off.
Trigger on Time
– the recording will start at the time and date specified. This trigger is useful
for recording at a time when a logger is unattended or to start multiple loggers at the same time.
4. When the selection has been made, click on Finish. The settings will be downloaded to Vu+ and
a message on the computer will inform ‘The logger is now set up for remote logging’. Click on OK.
