750 Interface (USB)
Model No. CI-7599
8
®
Operating the Interface with a Power
A
mplifier
With a PASCO CI-6552A Power Amplifier II plugged into an analog
channel of the
ScienceWorkshop
750 USB interface, you can supply up
to 1 A of external current at +/- 10 volts.
WARNING:
To prevent power surges, always turn on the
Power Amplifier
before
running DataStudio. Turning on the amplifier
while DataStudio is opening may cause a power surge, resulting in
damage to your computer.
To use the output of the Power Amplifier II, connect the load to the
banana jacks on the front of the Power Amplifier II. There is a power
switch on the back left hand corner of the Power Amplifier II.
When the Power Amplifier II is operating, a green power indicator
light on the front panel illuminates. A red current overload light comes
on whenever the maximum current of 1A is exceeded. If this warning
light is on, the waveform is distorted and you should reduce the output
voltage.
A. Set up the CI-6552A Power Amplifier with the Interface
1.
Plug the DIN connector of a Power Amplifier into any analog channel
on the 750
ScienceWorkshop
interface.
2.
Open DataStudio.
3.
In the Experiment Setup window, click on the Power Amplifier icon
in the Sensor list and drag it to any channel on the picture of the
interface.
Result:
A Power Amplifier icon with a Signal Generator
icon attached displays on the interface.
B. Generate Signals from within DataStudio (with the Power
Amplifer Connected)
1.
In DataStudio’s Signal Generator
dialog, select an AC waveform.
2.
Adjust the amplitude and
frequency with the
plus (+)
and
minus (-)
buttons (Figure 3) or
type in a numerical value. Use the
arrows for stepped progression.
Figure 3: Signal Generator
dialog in DataStudio
