Calibration Check - Micro Direct Micro I Operating Manual

Dispose of the waste battery in line with your local waste
management regulations.

Calibration Check

The Micro I is calibrated to read in liters at body temperature,
barometric pressure saturated with water vapor (BTPS).
The calibration should remain stable indefinitely, unless the
transducer is physically damaged, and the unit should not require
re-calibration. However, to ensure the correct functioning of the
unit, we do recommend a calibration check is performed
periodically.
To perform a calibration check, select the calibration check option
from the setting menu and the display will show:
Connect a 3-liter syringe to the Micro I with the minimum of
adapters and inject the syringe volume into the transducer evenly
without pausing. When complete, the display will show:
The acceptable calibration accuracy is +/- 3.5%. If the calibration
accuracy is outside of this range, the check mark will be replaced
by a cross. If this happens, check the syringe and the connections
for leaks and repeat the check. If the Micro I is repeatedly outside
the calibration range, the unit will have to be returned to Micro
Direct for servicing.
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