Metrohm 790 Personal IC - Manual (Page 56)

2.10 Connection of external devices
790 Personal IC
47
sonal IC at remote output 3 (see point 5) makes contact at
the "EXTERNAL INJECT INPUT" of the 750 Autosampler. The
run time will then be determined externally.
5 Settings in the «790 Personal IC» program
• A time program must be drawn up for the selected system
which first switches the injection valve to the "Fill" position,
then produces an impulse at remote lead 3 to start sample
addition by the 750 Autosampler and finally switches the in-
jection valve to the "Inject" position. The following example
shows such a program:
2.10.2 Connection of the 766 IC Sample Processor
The 766 IC Sample Processor available from Metrohm as an option is
an automatic sampler for ion chromatography. It accommodates max.
127 samples each of 2.5 mL or 11 mL, which are automatically trans-
ferred to the sample loop attached to the injection valve of the 790 Per-
sonal IC. Sample changing and filling the sample loop are started by a
remote signal produced by the 790 Personal IC (790 Personal IC as
"Master").
The 6.2141.110 Cable is required for connecting the 766 IC Sample
Processor. The 766 IC Sample Processor is connected to the 790 Per-
sonal IC as follows:
1 Electrical connection 790 – 766
• Connect the end of the 6.2141.110 Cable marked with "766"
to the remote interface 22 22 22 22 of the 766 IC Sample Processor
(see 766 Instructions for Use).
• Connect the end of the 6.2141.110 Cable marked with "732/1"
to the remote interface 16 16 16 16 of the 790 Personal IC (see Fig. 2).
2 Tubing connection 766 – injection valve
• Pull aspiration tubing 23 23 23 23 completely out from feedthrough 4 4 4 4
and screw it off from connection "1" of injection valve 22 22 22 22 (see
Fig. 3 and Fig. 4).