NeuLog NUL-206 User manual

NEULOG PH LOGGER SENSOR GUIDE
NeuLog pH logger sensor
NUL-206
The NeuLog pH sensor can be used for any science experiment where pH readings
are required. It is used in the fields of Chemistry, Pharmacology, Biochemistry,
Biology, Earth Science, Environmental Science, etc.
The sensor comes pre-calibrated so you can start experimentation right out of the box
using this guide.
Among hundreds of possible experiments that can be performed with the NUL-206
sensor are: monitoring of ecological systems, effect of pH on enzymes, static pH
measurements, chemical reactions with changing pH such as titrations, waste
measurements, water testing, etc.
The unit of measurement for this sensor is the pH scale.
pH: The universal measurement for pH which directly measures the concentration of
hydrogen ions using a scale of 0 to 14. Since pH is a logarithmic scale, a difference of
one pH unit is equivalent to a tenfold difference in hydrogen ion concentration.
Sensor offset:
Although the NeuLog pH sensor does not need to be calibrated prior to each use, it is
recommended to offset its probe.
Materials Needed:
pH 7 Buffer Solution (for qualitative measurements, distilled or even tap water
can be used instead)
Procedure:
1. Connect the pH sensor to a voltage source (USB-200 or BAT-200).
2. Remove the pH sensor probe’s tip from the plastic storage solution bottle.
3. Rinse the pH sensor’s tip with distilled water.
4. Insert the pH sensor’s tip into a pH 7 buffer; if no buffer is available, you can use
tap water instead (although it is not as accurate).
5. Press and hold the pH sensor’s push button for 3 seconds.
Quick start procedure:
PC or Mac Computer
Materials needed:
NUL-206 pH sensor
USB-200 USB module
USB to mini USB cable (included with the USB-200 module)
Your pH sensor needs to be connected to a USB-200 module. The USB-200 module
then connects to a computer via a USB to mini-USB cable. Please note that you
cannot plug the pH sensor directly into the computer.
The browser based application can be downloaded for free at www.NeuLog.com as
well as a full application user guide.
Choose "Downloads" on the main menu and then choose "Software and Application".
Procedure:
1. Install the NeuLog application.
2. Connect the USB-200 module to the PC or Mac.
3. Connect the pH sensor to the USB-200 module (they directly plug together).
Please note that no calibration is required for this sensor.
4. Open the NeuLog application by clicking on the shortcut on the screen.
5. Once the pH sensor module box appears on the left side of the screen, the
probe has been automatically identified and you can begin experimentation.
6. If the pH sensor is not automatically identified, click the "Search for sensors"
icon to find the sensor.
7. Click on the “On-line experiment” icon; this will open a graph below.
8. Click on the “Module setup” button located in the pH sensor's module box to
change the sensor's settings if need be.
9. Remove the pH sensor's probe from the plastic storage solution bottle.
10. Gently rinse the tip of the pH sensor’s probe thoroughly with distilled water. Be
careful not to touch the glass bulb.
11. Prior to initial use, the NeuLog pH sensor needs to be offset; please review the
“Sensor Offset” section above.
12. Click on the "Experiment setup" icon to change the experiment settings if need
be (experiment duration for example).
13. The pH sensor will give a live reading in its module box while plugged in.
14. To run an experiment and collect data, click the “Run experiment” icon.
15. To end data collection early, click the “Stop experiment” icon.

NEULOG PH LOGGER SENSOR GUIDE
Tablet, smart phone device
Materials needed:
NUL-206 pH Sensor
WIFI-201 WiFi Module
BAT-200 Battery Module
Your pH sensor needs to be connected to a WIFI-201 module. The WIFI-201 module
will create a closed NeuLog WiFi network which will stream the NeuLog data to the
device of your choosing. Once your device is wirelessly connected to the NeuLog
network, you can run experiments and collect data through a browser of your
choosing.
Procedure:
1. Connect the pH sensor directly to the left side of the WIFI-201 module (no wires
required).
2. Connect the BAT-200 module to the right side of the WIFI-201 module.
3. Although not required, we recommend plugging the BAT-200 to an outlet using a
USB to mini USB charger (such as a typical cell phone charger). The WIFI-201
module will run for 60-90 minutes (depending on the sensor) without being
plugged in.
4. The WIFI-201 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 WIFI-201 units with the USB icon on the cover.
5. For further WIFI-201 instructions or the WIFI-201 quick start guide please visit:
www.NeuLog.com; Choose "Products" on the main menu,
then choose "WiFi Communication module".
6. The WIFI-201 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 NeuLog
network (NeuLog0184 for example) which matches the ID found on the back of
the WIFI-201 module (0184 for example).
8. Give your device about 20 seconds to connect to the WIFI-201 module.
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 application, click on it.
11. The application 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 application does not auto detect the sensors, select “Search for Sensors”.
13. Once the sensor is found, you will see a module box on the left side of the
screen for the pH Sensor. In this box, real time data will be displayed.
14. Click on the “Module setup” button located in the pH sensor module box to
change the pH probe settings if need be.
15. Remove the pH sensor's probe from the plastic storage solution bottle.
16. Rinse the tip of the pH sensor’s probe thoroughly with distilled water. Be careful
not to touch the glass bulb.
17. Prior to initial use, the NeuLog pH sensor needs to be offset; please review the
“Sensor Offset” section above.
18. Click on the “Experiment setup” icon to change the experiment settings if need
be (Experiment duration for example).
19. To run an experiment and collect data, click on the “On-Line” experiment icon,
then click the “Run experiment” icon.
20. If you have a newer generation WIFI-201 module (with the USB icon on the
cover) this can be used as a USB-200, meaning you can tether the probes
directly to the computer using the WIFI-201. To engage operation in this fashion,
press 3 times on the panel button. Repeating this operation will return the unit to
WiFi mode.
Operation with NeuLog Graphic Display Module (viewer)
Materials Needed:
NUL-206 pH Sensor
VIEW-101 Graphic Display Module
BAT-200 Battery Module
Procedure:
1. Connect the pH sensor to the left side of the viewer.
2. Connect the BAT-200 module to the right side of the viewer.
3. The VIEW-101 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. Remove the pH sensor's probe from the plastic storage solution bottle.
6. Rinse the tip of the pH sensor’s probe thoroughly with distilled water. Be careful
not to touch the glass bulb.
7. Prior to initial use, the NeuLog pH sensor needs to be offset, please review the
“Sensor Offset” section above.
8. To run an experiment and collect data, click the run icon (little green person).

NEULOG PH LOGGER SENSOR GUIDE
Off-line experiments
(Off-line experiments are when you do not have a sensor connected directly to a
computer, tablet, smartphone, or NeuLog viewer).
Materials needed:
NUL-206 pH sensor
BAT-200 Battery Module
Materials needed to configure your offline experiment:
USB-200 Module, WIFI-201 module or VIEW-101 Module
USB to mini USB cable (included with the USB-200 module)
Procedure:
1. To determine the experiment settings, first connect to your chosen device (PC,
Mac, tablet, smart device) and click on the “Off-line experiment” icon after the
sensor search has ended. (For more information on how to change the
experiment settings, view the quick start procedure section for your chosen
device in this document.)
2. Connect the pH sensor directly to the left side of a charged BAT-200 module.
3. Remove the pH sensor's probe from the plastic storage solution bottle.
4. Rinse the tip of the pH sensor’s probe thoroughly with distilled water. Be careful
not to touch the glass bulb.
5. Prior to initial use, the NeuLog pH sensor needs to be offset, please review the
“Sensor Offset” section above.
6. When ready to collect data press the “Start/Stop” button on the pH sensor; a red
light will turn on for the duration of the experiment.
7. After the experiment has concluded (the “Start/Stop” button is pressed again or
the data collection period ends), connect the sensor to your chosen device (you
can find full instructions in each device’s quick start procedure section).
8. Open the NeuLog application.
9. Click the “Off-line experiment” icon.
10. Click the “Load data from sensors” icon.
11. Select which experimental data to upload (5 experimental runs can be stored at
one time on the NUL-206 pH sensor).
Restoring sensor’s factory default settings:
Procedure:
1. Connect the USB-200 module to a PC, Mac, tablet or smart device.
2. Connect the pH sensor to a USB-200 module (they directly plug together).
3. Open the NeuLog application.
4. Click the “Tools” icon.
5. Click the “Restore sensor’s factory defaults” on the menu.
Included with the sensor:
NeuLog pH Logger Sensor
NeuLog electrode with storage solution container (attached to the sensor)
NeuLog NUL-206 pH Sensor Guide (This Document)
Sensor specifications:
Range and operation modes
0 to 14 pH
ADC resolution
15 bit
Resolution
0.01 pH
Max sample rate (S/sec)
100
Electrode specifications:
Body diameter
12mm
Overall length
150mm
Cap
16mm OD ± 30mm Long
Construction
Epoxy body, round bulb ASG
VIII pH glass, sealed, gel-filled
single-junction reference with
fiber frit, Ag/AgCl wire, ATC
Range/output
0 –14 pH
mV output with
isopotential point at
0 ± mv at 25°C
Response time
98% of full response in 30
seconds at 25°C
Experiment Duration: 1 second to 31 days.

NEULOG PH LOGGER SENSOR GUIDE
Sensor's features:
Fully digital data
Rugged plastic ergonomic case
Push button switch for Start/Stop experiments in off line mode
LED indicator of experiment status (blinks while collecting data)
Attached electrode cased in durable plastic for pH detection
Plastic storage solution bottle
Note: NeuLog products are intended for educational use.
Videos and experiment examples:
Videos, literature and other probes can be found at www.NeuLog.com.
In order to access the pH sensor's page, choose "Products" on the main menu
and then "pH logger sensor".
In order to find the science experiments, choose "Experiments" on the main
menu of the NeuLog website, then choose "Physics", "Chemistry", "Biology" or
"Environmental Science".
Chemistry Experiments:
oAcid Rain (C-8)
oTitration of a Strong Acid and a Strong Base (C-10)
Environmental Science Experiments:
oProperties of Sea water and Fresh water (E-1)
Technical background:
The philosophy behind NeuLog’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 NeuLog 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).
Building the conversion formula of the pH sensor is done by measuring at least 3
different pH level buffers.
The sensor is pre-calibrated at the factory. The built-in software in the logger can be
upgraded for free at any time using the provided firmware update. In spite of that, the
probe needs to be offset to pH 7 prior to initial use; please review the “Sensor offset”
guide at the beginning of this document for detailed instructions.
The pH electrode houses a sensitive glass bulb which detects the H+concentration in
the fluid being tested; this is then translated to a voltage reading and passed along a
silver-chloride wire. The voltage reading is compared with the second component, the
reference electrode to compare voltage differences. The voltage reading is calculated
and translated back into pH.
Maintenance and storage:
Never submerge the NeuLog plastic body in any liquid.
Do not allow liquid into the pH sensor’s body.
After use, gently wipe away any foreign material from the pH sensor plastic
body.
Rinse the electrodes with distilled water before and after measuring a sample.
Never wipe the electrode to remove excess water –wiping can create static
charges that interfere with correct pH measurement.
When storing your sensor, always keep your pH electrode wet. We recommend
that you store your electrode in either a commercially prepared storage solution,
or a 1:1 solution of pH 4 buffer and 4M KCl.
If you do not have the pH 4 buffer + 4M KCl solution available, a pH 4 buffer can
be used. If you do not have a pH 4 buffer available, a pH 7 buffer can be used.
Do not store the electrode in distilled or deionized water –this will cause ions to
leach out of the glass bulb and render your electrode useless.
Store in a box at room temperature out of direct sunlight.

NEULOG PH LOGGER SENSOR GUIDE
Warranty:
We promise to deliver our sensor free of defects in materials and workmanship. The
warranty is for a period of 3 years from the date of purchase and does not cover
damage of the product caused by improper use, abuse, or incorrect storage. Sensors
with a shelf life such as ion selective probes have a warranty of 1 year. Should you
need to act upon the warranty, please contact your distributor. Your sensor will be
repaired or replaced.
Thank you for using NeuLog!
Flexible, simple, fast, forward thinking.
W: www.neulog.com
E: [e-mail]
A: 850 St Paul Street, Suite 15, Rochester, NY 14605
P: 1.866.553.8536
V11042014