Metrohm 2.889.0010 889, Руководство пользователя

Страница: 53 / 69

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
6 Troubleshooting
889 IC Sample Center
￭￭￭￭￭￭￭￭ 45
Problem Cause Remedy
4. Carry out a standard washing proce-
dure.
5. If washing solution is flowing out of
the open end, check the rotor seal. If
not, then check the entire flow path
to determine whether the connec-
tions have been tightened too firmly.
If the problem persists, undo the buf-
fer tubing from the syringe valve.
6. Carry out a standard washing proce-
dure.
7. If washing solution is flowing out of
the syringe valve, check the buffer
tubing. If not, check the syringe valve.
The injection valve is leaking. 1. Remove the needle connection and
the buffer tubing.
2. Connect the injection port 1 to a high
pressure pump.
3. Seal port 6.
4. Start the pump with a low flow rate.
5. Check port 3 and 4 for leakage.
6. If the ports 3 and 4 are leaking, check
the rotor sealing. If not, manually test
the valve again.
Warning
Observe the maximum pressure of 350 bar in order to avoid any valve
leakage.