Edu-Logger 900-255 User manual

Edu-Logger Respiration
Monitor Belt Logger Sensor
Guide
900-255

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Edu-Logger respiration monitor belt
logger sensor 900-255
The Edu-Logger respiration sensor can be used for
any science experiment or activity which involves
respiration measurements such as in the fields of
Exercise Science, Biology, Physiology, Human
Health, etc.
The sensor comes pre-calibrated so you can start
experimentation right out of the box using this guide.
Hundreds of possible experimental subjects that can
be done with the 900-255 sensors are: exercise studies,
human health studies, athlete comparisons, respiration
abnormalities, and many more.
The respiration sensor uses the following units of
measure:
Arbitrary analog units (Arb): An arbitrary unit to
demonstrate wave functions without units.
Using the respiration monitor belt:
To accurately record respiration rates you must first
properly attach the respiration monitor belt to the user.
Note: The belt works through clothing though try to
minimize layers for the best readings possible.
1. Unwrap the respiration belt and locate the Velcro
connection pads.
2. Situate the respiration belt so the Velcro pads are
facing outwards.

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3. Wrap the respiration belt tightly, without causing
discomfort, around the user’s lower ribs and
diaphragm area.
4. Ensure that the rubber tubing connected directly
to the respiration belt is situated above the user’s
naval facing downwards.
5. Close the air pressure release valve by twisting
the metallic knob until it tightens.
6. Using the hand-pump fill the respiration belt’s
bladder until it forms a snug but not
uncomfortable fit.
7. Run an experiment following one of the
following guides.
Quick start procedure:
PC or Mac Computer
Materials needed:
900-255 Respiration Sensor
900-213 USB Module
USB to mini USB cable (included with the 900-
213 module)
Your respiration sensor needs to be connected to a
900-213 module. The 900-213 module then connects
to a computer via a USB to mini-USB cable. Please
note that you cannot plug the respiration sensor
directly into the computer.
Resident PC software and browser based application
can be downloaded for free at www.edulab as well as
a full software user guide.
Note: Make sure not to download and install both
types of software they will conflict on the computer.

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Procedure:
1. Install the Edu-Logger software
2. Connect the 900-213 module to the PC or Mac
3. Connect the respiration sensor to the 900-213
module (they directly plug together). Please note
there is no calibration required for this sensor.
4. Open the Edu-Logger software.
5. Once a respiration sensor logo appears on the left
side of the screen the probe has been
automatically identified and you can begin
experimentation.
6. If the respiration sensor is not automatically
identified then click the “Search for sensors” icon
to find the sensor.
7. Select the “On-line experiment” button; this will
open a graph below.
8. Click on the “Module setup” button located on
the respiration sensor icon in the module window
to change the sensor settings if need be.
9. Click on the "experiment set up" button to change
the experiment settings if need be (experiment
duration for example).
10. The respiration sensor will give a live reading in
the box to the left of the screen while plugged in.
11. To run an experiment and collect data click “Run
experiment”.
12. To end data collection early, click “Stop
experiment”.
Tablet, smart phone device
Materials needed:
900-255 Respiration Sensor
900-268 WiFi module
900-215 Battery
Your respiration sensor needs to be connected to a
900-268 module. The 900-268 module will create a
closed Edu-Logger WiFi network which will stream

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the Edu-Logger data to a device of your choosing.
Once your device is wirelessly connected to the Edu-
Logger network you can run experiments and collect
data through a browser of your choosing.
Procedure:
1. Connect the respiration sensor directly to the left
side 900-268 (no wires required).
2. Connect a 900-215 module to the right side of the
900-268 module.
3. Although not required, we recommend plugging
the 900-215 to an outlet using a USB to mini
USB charger (such as a typical cell phone
charger). The 900-268 module will run for 15-75
minutes (depending on the sensor) without being
plugged in.
4. The 900-268 can be powered directly using a
mini to USB cord and plugging it into your
computer or a wall charger. Please note this
function is only available on 900-268 units with
the USB icon on the cover.
5. For further 900-268 instructions or the 900-268
quick start guide please visit: www.edulab.com
6. The 900-268 indicator lights will flash; take no
action until the LED to the far left turns blue; this
can take up to one minute.
7. Take your tablet or smart phone, go to the WiFi
settings and select the Edu-Logger network
which matches the 900-268 Module ID found on
the back of the 900-268 device. (Edu-
LoggerXXXX for example).
8. Give your device about 20 seconds to connect to
the 900-268.
9. Once the device is connected, go to your browser
and type the website wifi201.com into the URL
bar, then wait for 30-60 seconds.
10. You will see a “Control mode” icon in the
browser, click on this icon.

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11. The browser will then load a new screen and
begin to auto detect the sensor(s); this can take a
minute. (You can stop the search when the sensor
is found.)
12. If the browser does not auto detect the sensor(s),
select “Search for sensors”.
13. Once the sensor is found you will see an icon on
the left side of the screen for the respiration
sensor. The icon will display real time data.
14. Click on the “Module setup” button located on
the respiration sensor icon in the module window
to change the respiration probe settings if need
be.
15. Click on the experiment set up button to change
the experiment settings if need be (Experiment
duration for example).
16. To run an experiment and collect data, select
“On-Line” experiment, then select "Run".
17. If you have a newer generation 900-268 (with the
USB icon on the cover) this can be used as a 900-
213, meaning you can tether the probes directly
to the computer using the 900-268. To engage
operation in this fashion, press 3 times on the
panel key. Repeating this operation will return
the unit to WiFi mode.
Operation with Edu-Logger viewer
Materials needed:
900-255 Respiration Sensor
900-272 Viewing Module
900-215 Battery
Procedure:
1. Connect the respiration sensor to the left side of
the viewer.
2. Connect the 900-215 module to the right side of
the viewer.

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3. The 900-272 will auto detect the sensor and you
will see it appear on the left side of the screen.
4. Once the sensor appears it will be monitoring
data in real time.
5. To run an experiment and collect data click the
run button (little green person).
Off-line experiments
(Off-line experiments are for when you do not have a
sensor connected directly to a computer, tablet,
smartphone, or Edu-Logger viewer).
Materials needed:
900-255 Respiration Sensor
900-215 Battery
Materials needed to configure your offline
experiment:
900-213 Module or 900-268 module or 900-272
Module
USB to mini USB cable (included with the 900-
213 module).
Procedure:
1. Connect the respiration sensor directly to the left
side of a charged 900-215 module.
2. When ready to collect data press the “Start/Stop”
button on the respiration sensor, a red light will
turn on for the duration of the experiment.
3. To change the experiment settings first connect to
your chosen device (PC, Mac, tablet, smart
device) and select the “Module setup” button.
(For more information on how to change the
experiment settings view quick start procedure
section for your chosen device in this document.)

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4. After the experiment has concluded (when the
“Start/Stop” button is pressed again or the data
collection period ends) connect the sensor to your
chosen device. (full instructions in each device’s
quick start procedure section)
5. Open Edu-Logger software.
6. Click the “Off-line experiment” button.
7. Click the “Load data from sensors” button.
8. Select which experimental data to upload. (5
experimental runs can be stored at one time on
the 900-255 respiration sensor)
Restoring sensor’s factory default settings:
Procedure:
1. Connect the 900-213 to a PC, Mac, tablet, or
smart device.
2. Connect the respiration sensor to a 900-213
module (they directly plug together). Please note
there is no calibration required for this sensor.
3. Open the Edu-Logger software.
4. Click the “Tools” icon.
5. Click the “Restore sensor’s factory defaults” on
the menu.
6. If prompted to clear the graph, click either the
“Off-line experiment” or “On-line experiment”
(whichever you are using).
7. Click “Clear experiment results”.
8. Resume from step 4.

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Included with sensor:
Edu-Logger 900-255 Respiration Sensor Guide
(this document).
Respiration monitor belt attached directly to the
sensor by flexible rubber tubing.
Hand pump with pressure release valve attached
directly to the respiration monitor belt.
Sensor specifications
Range and operation
modes
0 to 20,000 arbitrary units
ADC resolution
13 bit
Resolution
1
Max sample rate (S/sec)
100
Sensor features:
Fully digital data.
Rugged plastic ergonomic case.
Respiration monitor belt attached to the sensor
body by a flexible rubber hose.
Hand pump with pressure valve for increasing and
decreasing pressure attached directly to the
respiration monitor belt by a flexible rubber hose.
Push button switch for Start/Stop experiments in
off line mode.
LED indicator of experiment status (blinks while
collecting data).
Pre-calibrated sensing equipment.
Note: Edu-Logger products are intended for
educational use.

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Videos and experiment examples:
Videos, literature and other probes can be found at
www.edulab.com
Technical background:
The philosophy behind Edu-Logger’s plug and play
technology is based on each sensor’s ability to store its
own data due to an internal flash memory chip and
micro-controller in each plastic Edu-Logger body.
This technology allows the sensor to collect and then
store the digital data in the correct scientific units (oC,
oF, Lux, %, ppm, for example).
The sensor is pre-calibrated at the factory. The built-in
software in the logger can be upgraded at any time
using software.
The pressure sensor uses the piezoresistive effect.
The transducer is based on silicon between metal foils
that changes its resistance according to pressure. One
side of it is at complete vacuum that enables to
measure the absolute pressure on its other side.
This transducer is built as a strain gauge with
Wheatstone bridge circuit so its output is a voltage
depends on it absolute pressure.
When the user inhales, a pressure is applied directly to
the blood pressure monitor cuff’s bladder and detected