Carolina NeuLog pH User Manual
NEULOG PH SENSOR GUIDE
NeuLog pH sensor
NUL-206 Carolina # 369635
The pH Sensor can be used for any science experiment or activity where pH readings
are required some fields of study include Chemistry, Pharmacology, Biochemistry,
Biology, Earth Science, Environmental Science, etc.
Just a few of the thousands of possible experiments that can be done with the NUL206 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 the scale of 0 to 14.
Sensor calibration:
Through usage, the pH probe deviates slightly from its stored voltage value
corresponding to a pH of 7 (the offset voltage). The conversion formula must be
adapted to this change by calibrating the pH sensor to a pH 7 buffer solution. After
calibration, the information will be stored for later testing. For the most accurate
readings, recalibrate regularly prior to experimentation.
Materials Needed:
Neulog-206 pH Sensor
pH 7 Buffer Solution
1 of the following (depending on experiment type)
o USB-200 USB Module (For On-line experiments)
o BAT-200 Battery (For Off-line experiments)
o VIEW-101 Viewing Module and BAT-200 Battery (For use with
Neulog Viewer)
Procedure:
1. The pH Sensor needs a voltage source to properly calibrate so connect the
pH Sensor to:
a. For On-line experiments: USB-200 USB Module.
b. For Off-line experiments: BAT-200 Battery
c. For use with the Neulog Viewer: VIEW-101 Viewing Module
and BAT-200 Battery.
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 pH Sensor‟s tip into pH 7 buffer, if no buffer is available you can use
tap water (although it is not as accurate).
5. The sensor now needs to be calibrated:
a. For On-line experiments:
i. Connect the pH Sensor to the left side of a USB-200
Module (which is connected to a computer via the USB
to mini USB cable.)
ii. Open the Neulog software
iii. Once the pH Sensor is detected click the “Module
setup” button.
iv. Click the “Calibration icon” (looks like a scale) to
automatically calibrate
b. For Off-line experiments and for use with Neulog Viewer:
i. Press and hold the pH Sensor‟s push button for 3
seconds
6. The pH Sensor is now calibrated for use.
Quick start procedure:
PC or Mac Computer
Materials needed:
NUL-206 PH Sensor
USB-200 USB Module
A USB to mini USB cable (which comes with the USB-200)
NEULOG PH SENSOR GUIDE
Prior to initial use the Neulog pH Sensor needs to be calibrated, please review the
“Sensor Calibration” section of this document starting on page 2 for detailed
instructions. Connect the pH Sensor to a USB-200 Module. The USB-200 Module
then connects to a computer via USB to mini USB cable. Please note that you cannot
plug the pH probe directly to the computer.
Resident PC software or browser base software can be downloaded for free at
www.neulog.com/dowload as well as a full software user guide. Make sure not to
download and install both types of software as they will conflict on the computer.
Procedure:
1. Remove pH Sensor probe from the plastic storage solution bottle.
2. Gently rinse tip of pH Sensor‟s probe thoroughly with distilled water. Be
careful not to physically come in contact with the glass bulb.
3. Calibrate the pH Sensor. (Follow the „Sensor Calibration” guide in this
document)
4. Install the Neulog software
5. Connect the USB-200 Module to the PC or Mac
6. Connect the pH Sensor to the USB-200 Module (they directly plug together).
7. Open the Neulog software.
8. Once a pH Sensor logo appears on the left side of the screen the probe has
been automatically identified and you can begin experimentation.
9. If the pH Sensor is not automatically identified then click the search sensors
icon to find the sensor.
10. Select the “On-line experiment”, this will open a graph below.
11. Click on the “Module setup” button located on the pH Sensor icon in the
Module window to change the pH probe settings if need be.
12. Click on the experiment set up button to change the experiment settings if
need be (Experiment duration for example).
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 WIFI module
BAT-200 Battery
Prior to initial use the Neulog pH Sensor needs to be calibrated, please review the
“Sensor Calibration” section of this document for detailed instructions. 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 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. Remove pH Sensor probe from the plastic storage solution bottle.
2. Rinse tip of pH Sensor‟s probe thoroughly with distilled water. Be careful
not to physically come in contact with the glass bulb.
3. Calibrate the pH Sensor. (Follow the „Sensor Calibration” guide in this
document)
4. Connect the pH Sensor directly to the left side WIFI-201 (no wires required).
5. Connect BAT-200 to the right side of the WIFI-201
6. 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 wifi201 will run for X minutes (depending on the sensor) without being
plugged in.
7. For further WIFI-201 instructions or the WIFI-201 quick start guide please
visit www.Neulog.com/download.
8. The WIFI-201 indicator lights will flash; take no action until the LED to the
far left turns blue.
9. Take your tablet or smart phone and go to 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)
10. Give your device 1-2 minutes to connect to the WIFI-201.
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