PASCO PS-2175 User Manual
Instruction Manual
GPS Position Sensor
PS-2175
012-09919A
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GPS Position S ensor Table of Contents
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Sensor Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Sensor Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Data Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Typical GLX Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Transfer Data to DataStudio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Plot Data in
My World GIS
(example) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Using the Position Sensor with Other Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
GPS Position Sensor
PS-2175
Included Equipment Part Number
GPS Position Sensor PS-2175
PASPORT Extension Cable PS-2500
Required Equipment
Xplorer GLX
or other PASPORT Interface
1
See PASCO catalog or www.pasco.com
Recommended Equipment
USB Flash Drive
My Worl d GIS
2
PS-2551 or similar
software See PASCO catalog or
www.pasco.com/myworld/
1
PASPORT interfaces include the Xplorer GLX (PS-2002), Xplorer (PS-2000), AirLink (PS-2005),
PowerLink (PS-2001), and USB Link (PS-2100)
2
For transferring data from Xplorer GLX to My World GIS software.
Introduction
The PASPORT GPS Position Sensor uses signals received from the Global Positioning System to determine its
latitude, longitude, altitude and horizontal velocity anywhere on earth. Use it al one or in conjunc tion with other
sensors for outdoor experiments in environmental science, physics, and other subjects.
Data from the GPS Position Sensor is relayed to a PASPORT inte rface such as the Xplorer GLX. You can view
and analyze the data on the GLX, or transfer it to a computer running DataStudio or My W orld GIS.
The Pos i ti o n S e nsor is co mpatib le wi th all PASPORT interf ac e s , bu t is most easily used with th e X p lo r er G L X .
The instructions in this manual assume that you are using an Xplorer GLX. See page 10 for additional information on using othe r interfaces.
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GPS Position S ensor Theory of Operation
Theory of Operation
GPS stands for Global Positioning System. This system is maintained by the
U.S. government for u se by people anywhe re on e arth. The syste m con sists of
more than 24 satellites orbiting at an altitude of about 20000 km. The satellites broad cast ranging signals and necessary data for the Position Sensor to
determine its own position and velocity. The Position Sensor only receives
data from th e satellites; it does not transmit any signal.
To determine its position, the sensor must receive data from at least thre e satellites. When the sensor is first po wer ed on, it searches the sky for available
satellites. This process typically ta kes between 30 seconds and 2 minutes.
Once satel lites have been identified, the sensor actively tracks them and
acquire s ne w sa tellites as they come into view.
The Position Senso r performs best outdoors wit h a clear view of the sky.
Sensor Set-up
up
Orientation and Positioning
It is importa nt to or ient t he sensor pr oper ly to re ceive sign al s from sa tell it es overhe ad,
especi al ly d uri n g initial search mode (when the red
SEARCH indicator is blinking).
The antenna detects signals th rough the labeled side of the sensor. Hold the sensor
with the labeled side approximately horizontal and facing the sky. Do no cover the
marked antenna area.
If the sensor is connected directly to the Xplore r GLX (without a cable), connect it to
channel 1 or 2 (not 3 or 4) and hold the GLX horizontally.
A 1/4-20 th rea ded insert is provided for attachment of a mounting rod or thumbscrew
as illustrated.
Interface set-up
The P o si tion S ensor wo rk s be st w ith GL X firmw ar e v er si on 1.40 or lat er. Visit www.pasco. co m/ glx
to download the newest firmware.
Before taking the GLX outdoors, leave it connected to AC power for several hours to ensure that
the battery is fully charged.
1. Plug the Position Sensor directly into channel 1 or 2 of the Xplorer GLX, or use
the included cable to connect it to any channel.
2. Press and hold the power button to turn on the GLX. The GLX automatically
detects the s ens or and opens the Digits display showing Latitude and Longitud e
measurements.
Orientation fo r
search
Optional mounting rod
attachment
initial
mode
3. (Optional) Pre ss to see all eight of the se nsor’s primary measurements.
F4
If you plan to use other sensors to collect data alongside GPS data, connect them to
other ports of the GLX.
4
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