Advanced Instruments Osmo1 User Guide

Chapter 4 Calibration
31
Osmo1® Single-Sample Micro-Osmometer User Guide
4. Enter your password and tap Enter.
The Calibration screen displays (Figure 24).
NOTE: Figure 24 shows the Calibration screen for a
unit that is configured for 3-point calibration.
If your unit is configured for 2-point
calibration, the row for the 2000 mOsm/kg
H
2
O calibration standard does not appear.
Figure 24: Calibration screen (before beginning Calibration procedure)
5. Follow the on-screen instructions to test samples
from each specified standard five times.
NOTE: You will test samples of known standards:
either 50 and 850 mOsm/kg H₂O for a 2-point
calibration; or 50, 850, and 2000 mOsm/kg
H₂O for 3-point calibration.
NOTE: Use the method for sample testing described
in “Testing procedure” on page26.
• After each successful calibration test, a green
checkmark appears in the calibration matrix
(Figure 25) and the unit prints “DONE” for that
calibration test.
• If a single calibration test fails or is canceled, the
system prompts for a retest using a new sample.
• If two failures occur within the same standard
group, that calibration fails and the screen displays
the message “Two replicate failures”.
• Upon completion of the last calibration test, the
system displays a “Calibration successful” message
(Figure 27) or the reason for failure.
Figure 25: Calibration screen (calibration in progress)
Figure 26: “Two replicate failures” error message
Figure 27: “Calibration successful” message
6. Click OK to close the success (or failure) message.
• When you close a success message, the system
returns you to the Home screen.
• When you close a failure message, the system
clears all checkmarks and returns you to the
Calibration screen (Figure 24). From there, you can
restart the calibration or exit to the Home screen.
When calibration is successful, the instrument calculates
a new calibration slope and intercept and saves those
values to memory.
If a calibration test fails or is canceled for any reason,
the instrument does not save that calibration data;
instead, it maintains the last successful calibration.
The date of the last successful calibration is displayed
on the Calibration screen.

Advanced Instruments Osmo1 Specifications

General

Brand	Advanced Instruments
Model	Osmo1
Category	Medical Equipment
Language	English