LabQuest 2 ========== The LabQuest is capable of measuring many different quantities depending on which probe(s) is/are attached. Temperature ~~~~~~~~~~~ 1. Attach temperature probe to USB port (upper left side). 2. Turn on power (left upper side) — The unit should show temperature. 1. Press **Duration:** and set to 300 s. 2. Press **Done**. 3. Press **Rate:** and change to 10 samples/s. 4. Press **Done**. 3. Set up your experimental run with the temperature probe appropriately positioned. 4. Press |labquest-run.png| to start recording the temperature. The display will change to a graph. .. note:: On your second and subsequent runs, you will get a message about what to do with your previous run. Press **Discard**. 5. Allow the temperature to be recorded for about 15 s to be sure you have a flat baseline. Also, *record the initial temperature in your notebook*. 6. Perform a trial run. 7. After the temperature has leveled off for at least 20 s, record the final temperature, then press |labquest-stop.png| to stop recording. 8. Go to Step 3 for subsequent runs. 9. When you have completed the experiment, clean the probe and power off the LabQuest. pH ~~ .. note:: I need a procedure. .. |labquest-run.png| image:: images/labquest-run.png :width: 20px .. |labquest-stop.png| image:: images/labquest-stop.png :width: 20px