NeuLog NUL-228 User manual

NEULOG SALINITY LOGGER SENSOR GUIDE
NeuLog salinity logger sensor
NUL-228
The NeuLog salinity sensor can be used for any science experiment or activity which
utilizes solutions that have a saline (salt) component such as in the fields of
Chemistry, Biology, Earth Science, Environmental Science, Biochemistry, Physics,
etc.
The sensor comes pre-calibrated so you can start experimentation right out of the box
using any of the following guides.
Just a few of the thousands of possible experiments that can be done with the NUL-
228 sensors are: Monitoring of ecological systems, chemical analysis and
identification, environmental health testing, water quality testing, chemical properties,
properties of electricity, etc.
The NeuLog salinity sensor can use any of the following units of measure:
Percentages (%): The total saline percentage out of the whole sample.
Parts per million (ppm): The number of salt molecules per million molecules.
Milligrams per liter (mg/L): The total mass of dissolved salts per liter of
volume.
Probe usage and care:
The probe has two flat electrodes with known surface areas and distance between
them. A signal is supplied to the electrodes and by testing the signal behavior, the
salinity of the solution is calculated.
General care:
Avoid touching the probes flat green surface if possible.
Never submerge the probe’s or sensor’s plastic body in any liquid.
Gently rinse the electrodes off with distilled water after each use and
between samples to avoid damage and contamination.
Handle and store with care to avoid damaging or chipping the electrodes.
Quick start procedure:
PC or Mac Computer
Materials needed:
NUL-228 Salinity Sensor
USB-200 USB Module
A USB to mini USB cable (which comes with the USB-200)
Your salinity 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 salinity sensor directly into the computer.
Resident PC software and browser based software can be downloaded for free at
www.NeuLog.com/dowload 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 salinity sensor to the USB-200 module (they directly plug
together). Please note there is no calibration required for this sensor.
4. Open the NeuLog software.
5. Once a salinity sensor logo appears on the left side of the screen the probe
has been automatically identified and you can begin experimentation.
6. If the salinity sensor is not automatically identified, click on 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 salinity 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 salinity 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”.

NEULOG SALINITY LOGGER SENSOR GUIDE
Tablet, smart phone device
Materials needed:
NUL-228 Salinity Sensor
WIFI-201 WIFI module
BAT-200 Battery
Your salinity 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
a 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 salinity sensor directly to the left side of a WIFI-201 module (no
wires required).
2. Connect a 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 micro 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. For further WIFI-201 instructions or the WIFI-201 quick start guide please
visit www.NeuLog.com/download.
5. The WIFI-201 indicator lights will flash; take no action until the LED to the
far left turns blue.
6. Take your tablet or smart phone and 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 1-2 minutes to connect to the WIFI-201 network.
8. Once the device is connected go to your browser and type in 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
sensors, this can take a few minutes.
11. If the browser does not auto detect, select “Search for sensors”
12. Once the sensor is found you will see an icon on the left side of the screen
for the salinity sensor. The icon will display data in real time.
13. To set the salinity sensor’s settings click on “Module setup” button located
on the salinity sensor icon on the left side of your screen.
14. To change the experimental settings click the “Experiment setup” button
(experiment duration for example).
15. To run an experiment and collect data click “Run experiment”.
Operation with NeuLog viewer
Materials needed:
NUL-228 Salinity Sensor
VIEW-101 Viewing Module
BAT-200 Battery
Procedure:
1. Connect the salinity 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. 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 NeuLog viewer).
Materials needed:
NUL-228 Salinity Sensor
BAT-200 Battery
Materials needed to configure your offline experiment:
USB-200 USB Module or WIFI-201 WIFI module or VIEW-101 Viewing Module
A USB to mini USB cable (which comes with the USB-200)

NEULOG SALINITY LOGGER SENSOR GUIDE
Procedure:
1. Connect the salinity sensor directly to the left side of a charged BAT-200
module.
2. When ready to collect data press the “Start/Stop” button on the salinity
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.)
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 NeuLog 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 NUL-228 salinity sensor)
Restoring sensor’s factory default settings:
Procedure:
1. Connect the USB-200 to a PC, Mac, tablet, or smart device.
2. Connect the salinity sensor to a USB-200 module (they directly plug
together). Please note there is no calibration required for this sensor.
3. Open the NeuLog software.
4. Click the “Tools” icon.
5. Click “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 NUL-228 salinity sensor guide (this document).
Salinity probe which is directly attached to the sensor’s plastic body.
Sensor specifications:
Range and
operation
modes
ADC resolution
Resolution
Max sample rate
(S/sec)
0 to 6.4%
16 bit
0.0064%
100
0 to 64,000
mg/L
64 mg/L
0 to 64,000
ppm
64 ppm
Sensor 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).
Pre-calibrated sensing equipment.
Salinity sensing electrodes located on the probe which is attached directly to
the sensor’s plastic body.
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/SalinityloggerSensor.aspx
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 3.0.2.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).
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.

NEULOG SALINITY LOGGER SENSOR GUIDE
On the salinity probe there are two electrodes of known surface area with a known
distance between them which allows for the sensor to determine the salinity of
solutions. The electrodes located on the salinity probe have an electrical potential
difference applied to them to generate a current through the solution. If ions are
present the current will flow between the electrodes. Current flows through solutions
via ion transport, therefore the higher number of ions present in a solution the easier
an electrical current can flow and a higher salinity value will be measured. The
electrodes alternate polarities to prevent a total ion migration to either pole which
could cause polarization and electrolysis.
Maintenance and storage:
Never submerge the NeuLog plastic body in any liquid.
Do not allow liquid into either the sensor’s or probe’s plastic body.
After using the probe rinse with distilled water and then blot or let air dry.
Store in a box at room temperature out of direct sunlight.
Temperature range/constraints.
pH constraints
Any chemicals the probe cannot be used in.
Warranty:
We promise to deliver our sensor free of defects in materials and workmanship for a
period of 3 years from the date of purchase. Our warranty does not cover damage of
the product caused by improper use, abuse, or incorrect storage. Sensors with a shelf
life such as ion selective proves 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
V04302013