PASCO PS-2190 User Manual

1 MHz 2-channel Voltage Sensor

Included Equipment

Instruction Sheet

012-10253A

PS-2190

Introduction

The 1 MHz 2-channel Voltage Sensor is a high speed, two chan­nel PASPORT voltage sensor that has a basic voltage range of
±10 volts. It has amplifiers that allow full-scale input ranges of
±1 volt and ±0.1 volt. The sensor uses an oversampling scheme
that allows input sampling at speeds up to one million samples
per second.

The 1 MHz 2-channel Voltage Sensor connects to a PASPORT
Xplorer GLX datalogger. Measurements are recorded and dis­played by the datalogger.

• 1 MHz 2-channel Voltage Sensor

Additional Equipment Required

• Xplorer GLX datalogger (PS-2002)

• Patch Cords (SE-9750 or SE-9751)

Quick Start

1. Connect the 1 MHz 2-channel Voltage Sensor to your
PASPORT Xplorer GLX datalogger.

2. Use patch cords to connect Channel 1 and Channel 2 to the
parts of the circuit for which you want to measure the volt­age.

3. On the Xplorer GLX, press the start button (s) to begin
recording data.

4. When data recording is done, press the start button again to
stop recording data.

The sensor measures up to two voltages simultaneously at speeds
up to one million samples per second when used with the GLX in
oscilloscope mode.

Set-up

Connecting the Sensor to an Xplorer GLX
Datalogger

Plug the sensor into any port on the top of the PASPORT Xplorer
GLX datalogger. The Xplorer GLX screen will automatically
show a Graph display of voltage versus time.

Setting Sensor Parameters

Sample rate, data averaging, and input voltage range are set in the
Sensors screen.

• Press the Home button (h) to open the Home screen.

•Press F4 (I) under Sensors in the Home screen to open

the Sensors screen.

Figure 1: Sensor screen

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1 MHz 2-channel Voltage Sensor PS-2190

The Sensors screen shows the icon and name of the sensor in the
upper left corner, and menus for Sample Rate Unit, Sample Rate,
Reduce/Smooth Averaging, Channel 1, and Channel 2.

Sample Rate in the Sensors Screen

By default, the sensor collects data at 10,000 samples per second.
To change the Sample Rate, for example, use the down cursor
button (d) to select the menu. Use the ‘plus’ or ‘minus’ but­tons (-+) to increase or decrease the sample rate, or press the
check button (c) to open the menu. Use the up or down cursor
buttons to highlight the sample rate and press the check button
again to select the choice and exit the menu. The maximum sam­ple rate that can be selected in the Sensors screen is 20,000 Hz
For faster sampling, see “Scope Mode Sample Rate Selection”..

Selecting Scope Mode

The 1 MHz 2-channel Voltage Sensor is designed to be used with
the Xplorer GLX in Scope Mode where the maximum sample
rate of 1,000,000 Hz can be selected.

Press the Home button to open the Home screen. Press the F1
button (F) under ‘Graph’ to open the Graph screen.

Press the F4 button (I) under ‘Graphs’ to open the menu. The
menu choices are numbered. Press the number button of the num­ber of your choice (for example, ‘Scope Mode’), or use the up
and down arrow buttons to highlight your choice and then press
the check button (c) to select the choice and close the menu.

Figure 2: Select sample rate

Selecting Voltage Range

By default, the input voltage range for both channels is ±10 V. To
change the input voltage range for either Channel 1or Channel 2
or to make the channel ‘not visible’, use the up or down cursor
buttons to highlight the menu and press the check button (c) to
open the menu. The menu choices are numbered.

Press the number button for the number of your choice to select
the choice and close the menu, or use the up or down cursor but­tons to highlight your choice and then press the check button to
select the choice and close the menu.

Figure 4: Select Scope Mode

The Graph screen changes slightly -- the ‘zero’ on the vertical
axis becomes an ‘x’-- to indicate that the Graph is in the Scope
Mode. The ‘Trigger’ choice in the Tools menu is also automati­cally selected.

Scope Mode Sample Rate Selection

To change the sample rate in Scope Mode, press the F2 (G)
button under ‘Scale/Move’ in the Graph screen. To increase the
sample rate, press the right cursor button (r). To decrease the
sample rate, press the left cursor button (l).

As you increase the sample rate by rescaling the Time (s) axis
with the ‘Scale/Move’ tool, the units will change from seconds
(s) to milliseconds (ms) and -- ultimately -- microseconds (µs).

Figure 3: Select input voltage range

The input voltage range for each channel can be set indepen­dently.

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Figure 5: Sample rate in Scope Mode

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