User Manual

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IPN 074-289L
Composer Operating Manual
3.1.14 Analog I/O Option —
Concentration Control Configuration
In addition to its use enabling the Bulk Flow Control configuration, refer to
section 3.1.13 on page 3-11, the Analog I/O option provides the following
features in the Concentration Control configuration.
 A second analog output that:
– When dilution control is not used, duplicates all of the functionality of the
standard Concentration Out BNC, see section 4.3.6.8 on page 4-27.
– When dilution control is used, maintains all of the functionality normally
provided by the Concentration Out BNC (which is now providing control
to the Dilution MFC), see section 4.3.6.8 on page 4-27.
 A second analog input is present but not used in Concentration Control
configuration.
The pin-out arrangement for this option is shown in Table 3-5.
Table 3-5 Pin outs
pin # function
1 ground
2 not used
3 not used
4 Analog Output (0 to 10 V)
5 ground
6 Analog Input (0 to 5 or 10 V, see section 4.3.6.6 on
page 4-26, SW7 of CFGR2)
7 ground
8 not used
9 not used