Hach-Lange ORBISPHERE 6110 User Manual - Manual (Page 68)

66
Troubleshooting
10.1.4 Measurement problems
Observation Explanation
Negative TPO results CO
2
purge gas is not of the required purity of > 99.9%
The instrument never reaches the threshold value CO
2
purge gas is not of the required purity of > 99.9%
The bottle goes up with the piercing head
Stop the analysis by pressing the emergency STOP button.
Disconnect instrument from the power supply and remove the bottle.
Check that the piercing spike is in place and not unscrewed. Release
emergency STOP button by turning it clockwise and restart the
instrument.
Open the front door to stop the process. Remove the bottle and check
that the piercing spike is in place and is not unscrewed. Close the front
door and press the Abort button on the screen.
No antifoam being injected
Go to the antifoam section of the maintenance wizard (see the
Antifoam system
section of Actuator verification on page 60 ) and
prime the pumps until antifoam can be seen being regularly injected
into the antifoam priming beaker.
Note: At startup, approximately 300 injections will be required in order
to prepare the system correctly.