Metrohm 732 IC Detector - Manual (Page 65)

3 Operating tutorial
732 IC Detector / 733 IC Separation Center
58
10 Start 709 IC Pump
If you do not operate the 709 IC Pump by remote control
via the 732 IC Detector, the pump must be switched on
directly using the key (see 709 Instructions
for Use).
PUMP R/S
8
⇒ Press the key. The pump drive of the 709 IC
Pump is started.
151.2 µµS/cm 8.9 min
pump running 6.9 MPa
After the start of the 709 IC Pump, an automatic switch is
made to the status message for the pump. If this is running
properly, the message "pump running" and the current
measured pressure appear.
11 Condition IC system
⇒ Rinse IC system with eluent until the desired stability of the
baseline is achieved.
To assess the baseline stability, it is advantageous if the
measured conductivity is continuously recorded with a re-
corder or printer or (e.g. with «IC Metrodata for Win95»)
shown on the PC.
It normally takes 30
… 60 min until the IC system is ready for
analysis. If the eluent is changed, the establishment of the
ion exchanger equilibrium on the separating column may
take longer.
151.2 µµS/cm 53.2 min
pump running 6.9 MPa
Example: With the PRP-X100 IC Anion Column a stable
conductivity value of ca. 150 µ S/cm is reached after around
45 min and scarcely changes after this time.