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8 error messages, result flagging and help texts – Eppendorf BioPhotometer User Manual

Page 36

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8 Error messages, result flagging and help texts

Error texts in measuring procedure

Error texts in calibration procedure

Error text

Explanation / Cause

Solution

Measure blank first

No blank has been measured
for the method selected.

Measure the blank.

Measure standard first

No valid calibration
for the method selected.

– Measure standards.

– Program a different calculation

(fixed factor or direct absorbance
measurement).

not within calibration

(For calculation via
non-linear regression only:)
The sample result is not within
the calibration range.

Repeat the measurement
(dilute sample if necessary).

Measurement module
Error 1
Measurement module
Error 2
Measurement module
Error 3

Different errors in measurement module.

Contact Service.

Error text

Explanation / Cause

Solution

No STD method

The

measuring key was pressed

although "Standard" was not programmed
as a procedure for the method selected.

– Re-measure the methods without

standard request.

– Program the "standard"

calculation.

Measured values
not plausible

(For one-point calibration:)
Absorbance measured is 0 A.

Re-measure standard.
(Prepare again if necessary).

Measured values
not monotonous

(For multiple-point calibration:)
The measured values do not produce
monotonously rising or falling sequences.

Check standards and re-measure in
the correct sequence (ascending
concentration).

Calibration curve is not
monotonous

(For non-linear regression:)
The calculated curve is not monotonous.

Check standards and re-measure in
the correct sequence (ascending
concentration).

Standard

08_Fehler_e.fm Seite 78 Montag, 20. Februar 2006 11:24 Uhr