NeuLog NUL-245 User manual

NEULOG DEW POINT LOGGER SENSOR GUIDE
NeuLog dew point logger sensor
NUL-245
The NeuLog dew point sensor can be used for any science experiment which requires
an accurate dew point reading such as in the fields of Biology, Exercise Science,
Environmental Science, Earth Science, Weather Science, Botany, Entomology, 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 carried out with the NUL-245
sensor are: perspiration, photosynthesis rates, insect behavior, ecological studies,
animal behavior, weather patterns, and many more.
Dew point is a measurement which determines the temperature at which water vapor
(at a constant barometric pressure) condenses back into a liquid at the same rate at
which it evaporates. A high dew point means there is a high amount of moisture in the
air. Relative humidity and dew point are closely related; a high relative humidity
indicates that the dew point is closer to the current air temperature. At 100% relative
humidity, the dew point temperature will equal the environmental temperature.
The NeuLog dew point sensor can take accurate readings in the following units of
measurement:
Celsius: The SI (International System of Units) unit of temperature.
Fahrenheit: The temperature measurement unit of the English System commonly used
in the United States.
Quick start procedure:
PC or Mac Computer
Materials needed:
NUL-245 Dew Point Sensor
USB-200 USB Module
A USB to mini USB cable (included with the USB-200 module)
Your dew point 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 dew point 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 dew point sensor to the USB-200 module (they directly plug
together). Please note that there is no calibration required for this sensor.
4. Open the NeuLog application by clicking on the shortcut on the screen.
5. Once a dew point 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 dew point 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 dew point sensor module
window box to change the sensor's settings if need be.
9. Click on the "Experiment set up" icon to change the experiment settings if need
be (experiment duration for example).
10. The dew point sensor will give a live reading in its module box to the left of the
screen while plugged in.
11. To run an experiment and collect data click the “Run experiment” icon.
12. To end data collection early, click the “Stop experiment” icon.
Tablet, smart phone device
Materials needed:
NUL-245 Dew Point Sensor
WIFI-201 WiFi Module
BAT-200 Battery Module
Your dew point 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.

NEULOG DEW POINT LOGGER SENSOR GUIDE
Procedure:
1. Connect the dew point sensor directly to the left side of a WIFI-201 (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 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 modules 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.
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 sensor(s), 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 dew point sensor. In this box, real time data will be displayed.
14. Click on the “Module setup” button located in the dew point sensor module box
to change the dew point probe settings if need be.
1. Click on the “Experiment setup” icon to change the experiment settings if need
be (Experiment duration for example).
15. To run an experiment and collect data, click on the “On-Line experiment” icon,
then click the "Run experiment" icon.
16. 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
module to WiFi mode.
Operation with NeuLog Graphic Display Module (viewer)
Materials needed:
NUL-245 Dew Point Sensor
VIEW-101 Graphic Display Module
BAT-200 Battery Module
Procedure:
1. Connect the dew point 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 press the run icon (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-245 Dew Point 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).

NEULOG DEW POINT LOGGER SENSOR GUIDE
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 dew point sensor directly to the left side of a charged BAT-200
module.
3. When ready to collect data press the “Start/Stop” button on the dew point
sensor, a red light will turn on for the duration of the experiment.
4. 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).
5. Open the NeuLog application.
6. Click the “Off-line experiment” icon.
7. Click the “Load data from sensors” icon.
8. Select which experimental data to upload (5 experimental runs can be stored at
one time on the NUL-245 dew point sensor).
Restoring sensor’s factory default settings:
Procedure:
1. Connect the USB-200 to a PC, Mac, tablet, or smart device.
2. Connect the dew point sensor to a USB-200 module (they directly plug together).
3. Open the NeuLog application.
4. Click the “Tools” icon.
5. Click “Restore sensor’s factory defaults” on the menu.
Included with the sensor:
NeuLog NUL-245 Dew Point Sensor Guide (this document).
Sensor's specifications
Celsius
Fahrenheit
Range and
operation modes
-114.0 to 109.0°C
-182.0 to 228.0°F
ADC resolution
12 bit
Resolution
0.1°C
0.2°F
Max sample rate
(S/sec)
100
Experiment Duration: 1 second to 31 days.
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)
Pre-calibrated sensing equipment
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 dew point sensor's page, choose "Products" on the main
menu and then "Dew point 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".
Environmental Science Experiment:
oMeasuring Dew Point (E-5)

NEULOG DEW POINT LOGGER SENSOR GUIDE
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.
The dew point sensor relies on two different sensors to accurately determine the dew
point of an environment: a temperature and a humidity sensor.
The internal humidity sensor utilizes a dielectric polymer to absorb water molecules.
As more water molecules enter, the capacitance changes proportionally to the relative
humidity value. Using this technique, an accurate relative humidity value is calculated.
The internal temperature sensor uses a thermistor which changes its resistance
according to temperature change. Resistance is measured and converted into
temperature.
Dew point is calculated using both the environmental temperature and relative
humidity values.
Maintenance and storage:
Never submerge the NeuLog plastic body in any liquid.
Do not allow liquid into the dew point sensor’s body.
After use, gently wipe away any foreign material from the dew point sensor.
Store in a box at room temperature out of direct sunlight.
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