®
Salinity Sensor
Setup
4
SPARK Setup
•
If the SPARK Science Learning System (SLS) is off, press and hold the power
button on the bottom to turn it on and then wait for the SPARK to boot up. The
screen will show a message to plug in a sensor.
•
Connect the PASPORT sensor to either of the ports on the top of the SPARK. The
screen will show the list of quantities measured by the connected sensor.
Graph Display (default)
To open a graph display, touch any quantity in the list and then touch SHOW to open
PAGE 1. Touch the right arrow next to PAGE 1 to go to the next display (digits).
Touch the
Start
button to begin collecting data.
Select a Display
To set up a particular display (e.g., digits display), touch BUILD. Touch a quantity
from the list, and then touch one of the display icons. Touch OK to open the display,
and then touch the
Start
button to begin collecting data.
Calibration
Prepare a salinity calibration solution.
You will need reagent grade sodium chloride (salt), a liter of distilled or deionized
water, a stir rod, and a container with accurate volume markings. Pour 500 milliliters
(mL) of distilled water into the container. Add 33.03 g sodium chloride (NaCl) and
stir the mixture until the salt dissolves. Next, add enough distilled water to make one
liter (1000 mL) of solution. This solution has a salinity value of 35 ppt at 25 °C.
1 Point Calibration
In DataStudio., click ‘Setup’ to open the Experiment Setup window and click ‘Cali-
brate Sensors…’. (1) In the Calibrate Sensors window, select ‘Salinity (ppt)’ as the
measurement from the second menu in the upper left corner. (2) Select ‘1 Point
(Adjust Slope Only)’ as the Calibration Type in the lower left corner.
Place the Salinity Sensor probe into the calibration solution and wait until the data in
the ‘Sensor Value’ window stabilizes. (3) Make sure that the Standard Value reads
35.000 ppt. (4) Click ‘Read From Sensor’.(5) Click ‘OK’ to close the Calibrate Sen-
sors window.
Start button
See the User’s Guides for
the Xplorer GLX or the
SPARK Science Learning
System for calibration
instructions.
(1)
(2)
(3)
(4)
(5)
Содержание PasPort PS-2195
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