Xylem ProLab 3000 Bedienungsanleitung PDF herunterladen (Seite 175)

ProLab 3000 What to do if...

175

ba75645e03 12/2012

CalClock on red

background

15.2 Ion selective measurement

Error message Err1

Obviously incorrect

measured values

Error message, Error

(invalid calibration)

– Measurement procedure not

suitable

– Follow special procedure

Cause Remedy

– Calibration interval expired – Recalibrate the measuring

system

Cause Remedy

– Measuring range exceeded – Dilute test sample

Cause Remedy

– Electrode not connected – Connect the electrode

– Cable broken – Replace the electrode

Cause Remedy

ISE electrode:

– Moisture in the plug – Dry plug

– Electrode obsolete – Replace the electrode

– Electrode unsuitable for the

range to be measured

– Use a suitable electrode

– Socket damp – Dry socket

Calibration procedure:

– Wrong sequence of standards

for three point calibration

– Select correct sequence

– Calibration standards do not

have the correct temperature

(max.

± 2 °C temperature differ-

ence)

– Adjust the temperature of

the calibration standards

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Xylem ProLab 3000 Bedienungsanleitung Seite 175