Xylem HandyLab 780 - Manual (Page 77)

77
pH Oxy Cond
Error and Status Messages
Error Messages
Error Message Remedy
blinks
Replace the batteries Replace the batteries.
ERR 1 Primary variable range
Check whether the measurement conditions
correspond to the adjusted measuring range.
ORP range
Temperature range
Zero point
Thoroughly rinse the sensor and recalibrate.
If this does not help, replace the sensor.
Slope
Cell constant too high/
low Enter nominal cell constant or calibrate the
sensor using a known solution.
Air pressure range Check if the opening for the pressure sensor
located on the back of the device is blocked.
Identical buffers! Use a buffer solution with a different nominal
value before starting the next calibration step.
Buffers interchanged! Repeat calibration.
Unstable value
(Drift too high) Leave the sensor in the liquid until the measu-
red value is stable. If this does not help, replace
the sensor.
Time and date invalid Set the date and time.
System error Restart, reset to factory settings, confi gure and
calibrate. If the error occurs again, contact the
Service.
Factory settings error Data error, measurement with analog sensors
no longer possible. Contact the Service team.
No sensor connected Connect operational Memosens sensor.
Buffer distance Re-enter the buffer table (HandyLab Pilot).
Data logger full Clear the logger completely or partially.
MemoLog full Clear the MemoLog completely or partially.