Chapter 5 Calibration
58
OsmoTECH XT Single-Sample Micro-Osmometer User Guide
5.4 Calibration procedure
To perform a calibration:
1. Press from the Home screen to open the Main
menu.
2. Press Calibration.
The system prompts you to log in.
3. Select yourself from the list of available users.
4. Enter your password and press Enter to open the
Calibration screen.
The following Calibration screens show instruments
configured for low range calibration (0, 500, and 1500
mOsm/kg H
2
O) and an instrument configured for high
range calibration (1500, 3000, and 4000mOsm/
kgH
2
O)
Instrument configured for low range calibration
(0, 500, and 1500 mOsm/kg H
2
O)
Instrument configured for high range calibration
(1500, 3000, and 4000 mOsm/kg H
2
O)
5. Follow the onscreen instructions to test samples from
each specified standard five times.
NOTE: Test samples of known standards depending
on the configured operating range:
• Low range calibration
(0, 500, and 1500 mOsm/kg HO)
• HIGH range calibration
(1500, 3000, and 4000 mOsm/kg HO)
NOTE: Use the method for sample testing described
in Testing procedure.
• After each successful calibration test, a green
checkmark appears in the calibration matrix and
the instrument prints DONE for that calibration
test.