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®

I n s t r u c t i o n   S h e e t

01 2- 09 62 5 B

Motion Sensor

PS-2103A

+1 916-786-3800
[email protected]

Quick Start

1.

Connect the Motion Sensor to your PASPORT-compatible 
interface (such as the 850 Universal Interface or the SPARK 
Science Learning System).

2.

If you are using a computer, connect the PASCO interface to 
it and start the data acquisition software (such as PASCO 
Capstone or SPARKvue).

3.

Place an object in front of the sensor at least 15 cm away.

4.

Click “Record” or press “Start to begin recording data.

5.

Move the object in a straight line directly away from or 
toward the sensor.

Introduction

The PS-2103A Motion Sensor works with your PASCO interface 
to measure and record position, velocity, and acceleration. It pro-
duces a series of ultrasonic pulses and detects the sound reflect-
ing back from an object in front of it. The interface measures the 
times between outgoing pulses and returning echoes. From these 
measurements, it determines the position, velocity, and accelera-
tion of the object.

This instruction sheet includes procedures for setting up the hard-
ware and software collecting data, changing the sample rate, cali-
brating the sensor, mounting the sensor on equipment, and 
troubleshooting.

Theory of operation is described and specifications are listed at 
the end of these instructions.

Note: Essential PASCO Capstone, SPARK SLS, and GLX tasks are 
described briefly in this instruction sheet. For more information, refer to 
the User’s Guide or the on-line help for the interface and/or the data acqui-
sition software.

Included Equipment

Part Number

Motion Sensor

PS-2103A

Additional Equipment Required

PASPORT-compatible Interface

See PASCO catalog 

or www.pasco.com

PASPORT Plug

Range
Switch

Ultrasonic
Transducer

Rotating

Head

Clips for 

mounting 

on track

Hole for

mounting

on rod

Target

Indicator

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