Sampling and testing procedure
HemoPoint
®
H2 User’s Guide
28
4.3 Quality control
4.3.1 AutoCheck
The HemoPoint
®
H2 AutoCheck performs an internal check of the
photometers optic system every time the cuvette holder is
opened. If regulatory quality control checks are required, the
quality control check should be performed using Stanbio liquid
controls.
4.3.2 Blank reading
All the optical and mechanical components involved with the
measuring cycle are carefully manufactured with extremely small
tolerances. This is essential for the proper function of the
photometer.
Always carry out a blank reading whenever you have removed
the cuvette holder (i.e., cleaning, replacing with a new cuvette
holder).
A blank reading can be performed as follows:
1. Open the cuvette holder completely.
The text in the display reads “Add Cuvette”.
2. Close the cuvette holder, without inserting a cuvette.
In this case the photometer does not start testing. After approx. 2
– 3 seconds the display will read “Open Holder”. If the instrument
does not show “Open Holder”, there is possibly a malfunction.
Please consult Section 7 “Troubleshooting”.
4.3.3 External quality control
If additional quality control is required by local or other
regulations, external control material may be used. For this
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