Human HumaStar 600, User Manual

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HumaStar 600 | User manual
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Temperature in reaction tray
is too high. (Do not be con-
cerned about
arm probe temperature)
Room temperature too high, (should always be
at least 4°C lower than selected working tem-
perature).
Example: For 37°C incubation temperature,
Room temperature should not exceed 33°C.
If Room temperature is within limits, and prob-
lem persists, call Technical Support.
Temperature in reaction
tray is too low. (Do not be
concerned about arm probe
temperature)
Room temperature excessively low. Verify in-
strument operating range, and adequate the
room temperature.
If room temperature is within specified range
and problem persists, call Technical Support.
9.2.2 MEASUREMENT INCONSISTENCIES
Consider storage and handling of reagents, standards and controls:
1. Verify expiration date, storage temperatures on and off analyzer.
2. Check that reagent was not frozen. Check color changes, sediments, turbid-
ity, no foam.
3. Check for mixed reagents from different lots or re-use of reagent bottles.
All methods
1. Verify cuvettes for dirt or scratching.
2. Verify there are no bubbles or droplet.
3. Verify there are no obstructions on probe, check for non constant or regular
flow.
4. Recalibrate photometer.
Colorimetrics with high dispersion
1. Replace sample by a standard and verify dispersion.
2. Perform hydraulic verification.
3. Check for sample centrifugation, increase time and speed.
4. Perform energy, noise photometric stability and dilution tests.
Colorimetrics with proper dispersion but values too high or low
1. Verify standard, compare calculated factor with stored (historic) factors, and
recalibrate method. If problem persists, replace standard and/or reagent.
2. Clean probe and check for cross contamination by changing the order of dis-
pensing (“Time priority for reagents” parameter). Check proper probe wash-
ing/clean probe.