Metrohm 761 SD Compact IC - Manual (Page 34)

2 Installation
761 SD Compact IC / Instructions for Use 8. 761.1043
26
2.9 Connecting the 766 IC Sample Processor
On instrument version 2.761.0520, the related 766 IC Sample Processor
should now be installed and connected.
The 766 IC Sample Processor is an automatic sampler for ion chroma-
tography. The instrument accommodates max. 127 samples (sample
vessels: 2.5 mL or 11 mL) which are automatically transferred to the
sample loop attached to the injection valve of the 761 SD Compact IC.
Sample changing and filling of the sample loop are each started by a
signal output on the 761 SD Compact IC (761 SD Compact IC as "mas-
ter").
2.9.1 Installing the 766 IC Sample Processor
Please refer to the supplied Instructions for Use 766 IC Sample Proces-
sor (8.766.1001) for installation of the 766 IC Sample Processor.
2.9.2 Connecting the 766 IC Sample Processor
Connect the 766 IC Sample Processor as follows:
1 Electrical connection 761 – 766
• Connect the remote end of cable 6.2125.110 to the RS232
connection 32 (see Instructions for Use 766) of the 766 IC
Sample Processors.
• Connect the other end to the COM2 output of the PC.
2 Tubing connection 766 – injection valve
• Undo the rotary nipple which is screwed in on the inner com-
partment side of the "feedthrough for aspirating tubing" 2.
• Pull the aspirating tubing 3 fully out of the "feedthrough for
aspirating tubing" 2 and unscrew it from the injection valve.
• Cut the PEEK capillary tubing 18 (see Instructions for Use
766) installed on the 766 IC Sample Processor to the required
length.
• Pull the free end of the PEEK capillary tubing 18 (see Instruc-
tions for Use 766) through the "feedthrough for aspirating tub-
ing" 2 into the inner compartment of the 761 SD Compact IC
and screw it on to the inlet of the injection valve which is now
free (see also Figure 11) using a PEEK pressure screw
6.2744.010.
• Screw the rotary nipple on the inner compartment side of the
"feedthrough for aspirating tubing" 2 back on and thus fix the
transfer tubing 18 (see Instructions for Use 766) in position.