Troubleshooting - Hach TitraLab AT Série Manuel D'utilisation De Base

Option
Reagent
replacement
Clean PtPt
electrode

Troubleshooting

Refer to the following table for common problem messages or symptoms and possible causes.
Error/Warning
Stop requested
Measurement unstable
Measurement out of range
Temperature out of range
Slope out of range
Offset out of range
Cell constant out of range
Equiv. point not found
Out of range
Electrode calibration has expired
Titrant calibration has expired
Maximum number of applications is reached
Requires at least one titrant that cannot be
installed
Requires too many titrants for this instrument
model configuration
Buffer unstable
The connected electrode(s) cannot be calibrated
or there is no application that contains
calibration parameters!
Standard unstable
Same buffer
Calibration solution already used
No titrant information
No measure received
Burette fails to deliver
Burette fails to fill
Burette failed to read delivered volume
22 English
Description
Use this option to replace the reagents. Obey the instructions on the display.
This option is only available if a PtPt sensor is connected to the instrument. Use a
beaker for all the cleaning liquids. Obey the instructions on the display.
Description
The operator has pushed the stop button
The measurement is unstable
The measurement is out of range
The temperature measurement is out of range
The calibration slope is outside accepted limits
The calibration offset is outside accepted limits
The calibration value of the cell constant is outside accepted
limits
The titration fails to determine the equivalence point
The computed result is outside accepted limits
The Calibration date has expired
The Calibration date has expired
The maximum number of applications per line has been
reached
The application is not compatible with applications already
installed as it uses a different titration
The instrument hardware configuration is not compatible with
this application
The value of the buffer is unstable
The type of sensor cannot be calibrated (e.g., PtPt, ORP, etc.)
or there is no installed application that contains calibration
parameters
The standard is unstable
The buffer has already been used
The calibration solution has already been used
System failure
System failure
The syringe cannot be emptied
The syringe cannot be filled
System failure