Error 4-6 - testo 230 Bedienungsanleitung

22
Slope of the electrode is not within the range
-50 mV/pH to -62 mV/pH
- Possible causes and • remedies:
- faulty electrode.
• interrupt calibration by pressing the PAGE
key (the values from the last calibration will
remain stored).
Use new electrode.
Zero point of the electrode is not within the
range -60 to +60 mV.
- Possible causes and • remedies:
- faulty electrode.
• interrupt calibration by pressing the PAGE
key (the values from the last calibration will
remain stored).
Use new electrode.
Response time of the electrode too long
(during Auto-Hold or calibration).
- Possible causes and • remedies:
- electrode is dirty
- electrode faulty.
• erase error message by pressing the
PAGE key (interrupt calibration by pressing
the PAGE key, the values from the last
calibration will remain stored).
rinse the electrode and continue the ,
procedure, should the error reoccur, use a
new electrode.
Internal instrument error.
- Possible causes and • remedies:
- faulty measuring instrument.
• return instrument to Testo's service
department.
Error messages

ERROR 4-6