NeuLog NUL-206 User manual

NEULOG PH LOGGER SENSOR GUIDE
NeuLog pH logger sensor
NUL-206
The pH sensor can be used for any science experiment where pH readings are
required. Some fields of study include 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.
Just a few of the thousands 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.
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
Procedure:
1. Connect the pH sensor to a voltage source (USB-200, BAT-200, WiFi-201).
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.
Resident PC software and browser based application can be downloaded for free at
www.neulog.com/Download/SoftwareandApplication.aspx 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.
Procedure:
1. Install the Neulog software.
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).
4. Open the Neulog software.
5. Once the pH sensor logo 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. Select the “On-line experiment” button; this will open a graph below.
8. Click on the “Module setup” button located on the pH sensor's icon in the module
window to change the pH probe 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 physically come in contact with 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" button to change the experiment settings if need
be (experiment duration for example).

NEULOG PH LOGGER SENSOR GUIDE
13. The pH sensor will give a live reading in the box to the left of the screen when
running.
14. To run an experiment and collect data click “Run experiment”.
15. To end data collection early, click “Stop experiment”
Tablet, smart phone device
Materials needed:
NUL-206 pH Sensor
WiFi-201 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 15-75 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 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/Download/SoftwareandApplication.aspx
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.
6. Take your tablet or smart phone, go to the Wi-Fi settings and select the Neulog
network which matches the WiFi Module ID found on the back of the WiFi-201
device. (NeuLogXXXX for example).
7. Give your device about 20 seconds to connect to the WiFi-201.
8. 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.
9. You will see a “Control mode” icon in the browser, click on this icon.
10. 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.)
11. If the browser does not auto detect the sensors, select “Search for Sensors”.
12. Once the sensor is found, you will see an icon on the left side of the screen for
the pH Sensor. The icon will display real time data.
13. To set the pH probe settings, click on the “Module setup” button located on the
pH sensor's icon on the left side of your screen (graph settings for example).
14. Remove the pH sensor's probe from the plastic storage solution bottle.
15. Rinse the tip of the pH sensor’s probe thoroughly with distilled water. Be careful
not to physically come in contact with the glass bulb.
16. Prior to initial use, the Neulog pH sensor needs to be offset; please review the
“Sensor Offset” section above.
17. To change the experimental settings, click on the “Experiment setup” button
(experiment duration for example).
18. To run an experiment and collect data, click “On-Line” experiment, then click run.
19. If you have a newer generation WiFi-201 (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 key. Repeating this operation will return the unit to WiFi mode.
Operation with NeuLog 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 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 physically come in contact with the glass bulb.

NEULOG PH LOGGER SENSOR GUIDE
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 button (little green person).
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 USB module, WiFi-201 module or VIEW-101 module
A USB to mini USB cable (included with the USB-200)
Procedure:
1. Connect the pH sensor directly to the left side of a charged BAT-200 module.
2. Remove the pH sensor's probe from the plastic storage solution bottle.
3. Rinse the tip of the pH sensor’s probe thoroughly with distilled water. Be careful
not to physically come in contact with the glass bulb.
4. Prior to initial use, the Neulog pH sensor needs to be offset, please review the
“Sensor Offset” section above.
5. 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.
6. 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 the quick start
procedure section for your chosen device in this document.)
7. 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 (you can find full instructions in each device’s quick start procedure
section).
8. Open the NeuLog software.
9. Click the “Off-line experiment” button.
10. Click the “Load data from sensors” button.
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 software.
4. Click the “Tools” icon.
5. Click the “Restore sensor’s factory defaults” icon.
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.
Included with 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
16 bit
Resolution
0.01 pH
Max sample rate (S/sec)
100

NEULOG PH LOGGER SENSOR GUIDE
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
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
Note: Neulog products are intended for educational use.
Videos and experiment examples:
Videos, literature and other probes can be found at www.neulog.com
http://www.neulog.com/Products/pHloggerSensor.aspx
Acid Rain -
http://www.neulog.com/Portals/3/Users/Experiment C-8 Acid rain Ver 6.2.5.pdf
Properties of Sea water and Fresh Water -
http://www.neulog.com/Portals/3/Users/Experiment E-1 Properties of Sea Water
and Fresh water Ver 6.0.2.pdf
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.
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.
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. If you do not have a buffer, tap water can be used.
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: [email protected]m
A: 850 St Paul Street, Suite 15, Rochester, NY 14605
P: 1.866.553.8536
V05162013