Vernier DataMate Guidebook - Manual (Page 13)

DataMate Guidebook 11
LABPRO TUTORIAL #3: EVENTS WITH ENTRY AND BOYLE’S LAW
The Events with Entry mode collects one data point each time you press
ENTER
and then
asks you to enter a corresponding value for that point . This tutorial will guide you
through the setup procedure of an experiment using Events with Entry to investigate the
relationship between the pressure and volume of a gas.
MATERIALS
TI graphing calculator Vernier Gas Pressure Sensor
LabPro interface DataMate program
Figure 1
PROCEDURE
1. Prepare the Gas Pressure Sensor and an air sample for data collection.
a. Plug the Gas Pressure Sensor into Channel 1 of the LabPro. Use the link cable to
connect the TI graphing calculator to the interface. Firmly press in the cable ends.
b. With the 20 mL syringe disconnected from the Gas Pressure Sensor, move the
piston of the syringe until the front edge of the inside black ring (indicated by the
arrow in Figure 1) is positioned at the 10.0 mL mark.
c. Attach the 20 mL syringe to the valve of the Gas Pressure Sensor. The Vernier Gas
Pressure Sensors have a white stem protruding from the end of the sensor box—
attach the syringe directly to the white stem with a gentle half-turn.
2. Turn on the calculator and start the DataMate program.
Notice how the program automatically identified the Pressure Sensor (an
auto-ID sensor). It displays the channel it is connected to and the current
reading. Press
CLEAR
to reset the program .
Note: If you are not using an auto-ID sensor, you will have to set it up
manually. Refer to Tutorial #2 for directions.
3. To collect pressure vs. volume data for Boyle’s law, you need to collect
the data in Events with Entry mode. The current mode is time graph, so
select
SETUP .
4. This is the Setup screen. Here you can change the data collection mode.
To select MODE , press once and press
ENTER
.