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 or activity
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 any of the following guides.
Just a few of the thousands of possible experiments that can be done with the NUL-
245 sensors are: perspiration, photosynthesis rates, insect behavior, ecological
studies, animal behavior, weather patterns, and many more.
Dew point is a measurement which determines the temperature that water vapor (at a
constant barometric pressure) condenses back into a liquid at the same rate at which
it evaporates. Relative humidity and dew point are closely related; as the relative
humidity rises, the dew point temperature will rise closer to the actual environmental
temperature. At 100% relative humidity, the dew point temperature will equal the
environmental temperature.
The NeuLog dew point sensor can take accurate readings using the following units of
measure:
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 (which comes with the USB-200)
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.
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 dew point 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 dew point sensor logo 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 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 dew point 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 dew point 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 either click “Run experiment”.
12. To end data collection early, click “Stop experiment”.
Tablet, smart phone device
Materials needed:
NUL-245 Dew Point Sensor
WIFI-201 WIFI module
BAT-200 Battery

NEULOG DEW POINT LOGGER SENSOR GUIDE
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.
Procedure:
1. Connect the dew point 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 dew point sensor. The icon will display data in real time.
13. To set the dew point sensor’s settings click on “Module setup” button
located on the dew point 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-245 Dew Point Sensor
VIEW-101 Viewing Module
BAT-200 Battery
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 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-245 Dew Point 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)
Procedure:
1. Connect the dew point 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 dew point
sensor, a red light will turn on for the duration of the experiment.

NEULOG DEW POINT LOGGER SENSOR GUIDE
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-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). 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-245 Dew Point Sensor Guide (this document).
Sensor specifications
Celsius
Fahrenheit
Range and operation
modes
-45.0°C to 109.0°C
-49.0°F to 228.0°F
ADC resolution
12 bit
Resolution
0.1°C
0.1°F
Max sample rate
(S/sec)
100
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.
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/dew pointloggerSensor.aspx
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 thermometer, and a humidity sensor.

NEULOG DEW POINT LOGGER SENSOR GUIDE
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 thermometer uses a thermistor which produces electrical resistance non-
linearly with 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 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