6.5.2 Sampling Error (Position)
Monitor Timing: When the probe has been apart from liquid surface after sample or reagent aspiration
Monitor Method: The capacitance liquid level detection sensor monitors the probe has not been apart from
the sample or reagent.
CA-500’s Action: In the case of a sample, the instrument stops. In the case of a position of reagent, the
concerned analysis will not be done. The related analysis parameter of reagent will not be
done thereafter. In the case of rinse reagent, however, emergency stop is made.
(1) Probable Cause
1. Plasma volume is insufficient.
2. Power supply is not frame-grounded in a noisy and static-charged environment.
3. Failure of PCB No. 2134
(2) Confirmation by the operator
1. Check whether a sample location (rack number) matches its registration or not.
2. Secure the frame grounding of the power supply.
(3) Confirmation by service Engineer.
1. Failure of PCB No. 2134
2. Always secure frame grounding in a noisy environment.
CA-500 Series S/M 6-15 Revised December 2001 8
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