3 connection of other devices – Metrohm 761 Compact IC User Manual
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2 Installation
761 Compact IC
52
5 Settings in the «761 Compact IC» program
•
A time program must be drawn up for the selected system
which first produces an impulse at remote lead 3 to start
sample changing on the 766 IC Sample Processor and then
switches the injection valve to the "Fill" position. A further im-
pulse is then produced to start filling the sample loop within
120 s. At the end the injection valve is switched to the "Inject"
position, which also starts data acquisition.
6 Run conditions
In order that the joint operation of 761 – 766 functions properly
the following conditions must be fulfilled:
•
The program must be started first on the 766 IC Sample
Processor, then the "Sample Queue" on 761 Compact IC.
•
Remote lead 3 on the Compact IC must be set to 0 at the
start of each determination (Set
System startup values
:
Remote line 3 = 0
).
2.10.3 Connection of other devices
Any external devices can be connected to the 25-pin remote interface
24 (see Fig. 2). The 8 output lines can be used to control these external
devices.
Before an external device is connected to the remote interface 24, the
761 Compact IC must always be switched off using mains switch 19 !
The pin assignment of the remote interface, its functions and the elec-
trical requirements and the conditions are described in section 6.1.