Chapter 4
Testing samples
53
OsmoTECH XT Single-Sample Micro-Osmometer User Guide
4.5 Testing procedure
Use this procedure to test all samples (including
calibration standards, reference solutions, and controls).
Be sure to discard the used sampling tip and clean the
testing chamber as instructed after each sample.
Logging in and entering a sample ID
1.
If the Home screen is not currently displayed
,
press
to display the Home screen.
2.
From the Home screen, check the status indicator and
take the appropriate action:
•
Green
(Ready): Go to step 3.
•
Orange
(IDs Required): Go to step 3.
•
Yellow
(Testing in progress): Wait for the current
test to complete.
•
Red
(error condition): Refer to
.
3.
If applicable:
Log in with your User ID.
NOTE:
Check the color of the Login button to
determine Login status:
•
Gray:
Login is optional
•
White
(Operator),
Yellow
(Supervisor), or
Red
(Administrator): A user is already
logged in—the Login button shows the
username. Press
Login
to log out that user.
a.
From the Home screen, press
Login
to open the
Select User
screen.
b.
Select the username from the drop-down list and
press
Enter
.
A keyboard displays.
c.
Use the keyboard to type the password for the
selected user account and press
Enter
.
4.
If required:
Enter the Sample ID.
NOTE:
Check the color of the Sample ID button to
determine whether Sample ID is optional or
required:
•
Blue:
Sample ID is optional
•
Orange:
Sample ID is required
a.
Press the
Sample ID
button.
A keyboard displays and the barcode scanner on
the front of the instrument activates.
b.
Either type the sample ID and press
Enter
, or scan
the sample label with the barcode scanner.
The keyboard closes. On the Home screen, the
Sample ID field is now populated.
NOTE:
If sample ID was required (orange
button), the button turns blue after you
enter the sample ID.
Testing a sample
NOTE:
Before testing, make sure that the range setting
(high or low) is correct for sample being tested
(see
1.
Place a new sampling tip on the sampler with the
plunger wire inserted carefully into the middle of the
tip.
Verify that the tip is straight and firmly seated.
