Vernier Software & Technology LQ2-LE User Manual
LabQuest App
15
o
Mode: Full Spectrum
– Full Spectrum
data-collection mode can only be used
with Spectrometers and is the default
mode when a Spectrometer is connected.
In Full Spectrum mode, Intensity,
Absorbance, Fluorescence (SpectroVis
Plus only), or %Transmittance can be
measured as a function of wavelength.
Detailed instructions for setting up data
collection with spectrometers are included in each of our
with Spectrometers and is the default
mode when a Spectrometer is connected.
In Full Spectrum mode, Intensity,
Absorbance, Fluorescence (SpectroVis
Plus only), or %Transmittance can be
measured as a function of wavelength.
Detailed instructions for setting up data
collection with spectrometers are included in each of our
o
Mode: Gas Chromatograph
– LabQuest 2 supports the use of the Vernier Mini Gas
Chromatograph (GC). When a Mini GC is plugged in the LabQuest 2 USB port,
the software will automatically identify the Mini GC and select the Gas
Chromatograph mode. This mode should not be entered unless a Mini GC is
attached.
the software will automatically identify the Mini GC and select the Gas
Chromatograph mode. This mode should not be entered unless a Mini GC is
attached.
In this mode, various parameters are
defined for the user to establish a
temperature and pressure profile
adequate for the current experiment.
When the mode is first entered, a set of
default parameters is displayed. If you
wish to change these parameters, tap in
the parameter field to enter a new value
or adjust the default value by tapping the
arrow buttons. These values will be
reflected in the preview of the time-dependent temperature graph displayed at
right. After setting the parameters, tap OK to initiate the Mini GC warm up.
Note: A new message will appear, “Do not inject until GC is ready.” The
Mini GC will take a few minutes to warm up and stabilize. When the Mini GC is
defined for the user to establish a
temperature and pressure profile
adequate for the current experiment.
When the mode is first entered, a set of
default parameters is displayed. If you
wish to change these parameters, tap in
the parameter field to enter a new value
or adjust the default value by tapping the
arrow buttons. These values will be
reflected in the preview of the time-dependent temperature graph displayed at
right. After setting the parameters, tap OK to initiate the Mini GC warm up.
Note: A new message will appear, “Do not inject until GC is ready.” The
Mini GC will take a few minutes to warm up and stabilize. When the Mini GC is
ready for injection, the message will read, “Inject and select Collect
simultaneously.”
simultaneously.”
For more detailed information on the Vernier Mini Gas Chromatograph, see
o
Mode: Drop Counting
– In this mode, you can choose to calibrate drops so that the
volume of titrant is recorded in units of milliliters. Choose Calibrate from the
Sensors menu. The Vernier Drop Counter is set to use a default calibration of 28
drops/mL. If you choose to calibrate the sensor, the volume of an individual drop
will be determined by the number of drops that pass through the Vernier Drop
Counter and dividing by the total volume of the drops. Follow the instructions on
the screen to complete a custom calibration. Alternately, the Equation tab allows
you to input a previously determined value for drops/mL. Enter the drops/mL
value (e.g., 28.0), then choose OK.
Sensors menu. The Vernier Drop Counter is set to use a default calibration of 28
drops/mL. If you choose to calibrate the sensor, the volume of an individual drop
will be determined by the number of drops that pass through the Vernier Drop
Counter and dividing by the total volume of the drops. Follow the instructions on
the screen to complete a custom calibration. Alternately, the Equation tab allows
you to input a previously determined value for drops/mL. Enter the drops/mL
value (e.g., 28.0), then choose OK.