Thermo Scientific QDC 300 User manual

QuickStart Doc No. 065516-01 Page 1 of 2 January 2013
CHARGE DETECTOR CELL (QDC 300)
Quick Start
(0.4 mm) P/N: 078841
To ensure proper operation of the QDC 300 follow the instructions below. Refer to the ICS 4000 manual and the
QDC 300 manual for detailed operation guidelines.
Do not attempt to disassemble the QDC 300; it may result in irreversible
damage.
W
ARNING
!
The QDC 300 should be installed after the Conductivity (CD) background on
the system is ≤2 µS/cm.
1. Hydration and start up of QDC
The QDC 300 is shipped dry and should be hydrated prior to use. This process ensures that the QDC 300
membranes are fully hydrated and ready for operation. Figure 1A shows the top view of the QDC 300 as
shipped with the “ELUENT IN” line plumbed to the “REGEN OUT” port of the QDC 300. Figure 1B shows the
bottom view of the QDC 300 with the ball stud and connector required for installing the QDC 300.
Figure 1A: Top View of the QDC 300 as Shipped
Figure 1B: Bottom view of the QDC 300
NOTE
!

QuickStart Doc No. 065516-01 Page 2 of 2 January 2013
The hydration steps for the QDC 300 can be performed online on the ICS 4000 system as outlined below.
A. Ensure that all the consumables except QDC 300 are installed on the ICS 4000 system. Equilibrate the system with the
eluent required for the analysis and wait for the CD background to be < 2 µS/cm.
B. Now install the QDC 300 on the system by aligning the ball stud into the correct receptacle on the QD detector location as
shown in Figure 2.
Figure 2: Proper Installation of the QDC 300
CD
QD Cell
QD
C. Disconnect the blue “ELUENT IN” line on the QDC 300 from the QDC 300 “REGEN OUT” port. Connect a small piece of
waste tubing to the “REGEN OUT” port of the QDC 300 to ensure that during hydration there is liquid flowing out of the
waste tubing.
D. Disconnect the suppressor “REGEN INLET” line from the “CELL OUT” port of the conductivity detector.
E. Turn off the suppressor current at this point.
F. Connect the blue “ELUENT IN” line of the QDC 300 to the “CELL OUT” port of the conductivity detector.
G. Let the QDC 300 flush with cell effluent for 5 minutes while sending the flow out of the QDC 300 “REGEN OUT” port to
waste. This ensures that any leachates from the QDC 300 are driven to waste and not into the suppressor regenerant
channel.
H. Ensure that there is liquid coming out from the waste line in Step G from the “REGEN OUT” port of the QDC 300 before
proceeding further.
I. Turn ON the Power to the QDC 300 from the Chromeleon panel and let the QDC 300 equilibration continue for another 20
minutes.
J. After Step I, remove the waste line from the “REGEN OUT” port of the QDC 300 and discard it.
K. Connect the regen line from the suppressor regenerant channel inlet (line coming out of the suppressor “REGEN IN” port) to
the QDC 300 “REGEN OUT” port (as shown in Figure 2).
L. Now turn on the suppressor current from the Chromeleon panel.
M. The QDC 300 is now installed in the IC system following the plumbing schematic shown in Figure 3.
N. Set the compartment temperature to 15°C for the QDC 300 operation. The QDC 300 device is now ready for use.