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INFICON Composer Gas Concentration Controller User Manual

Page 81

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9L

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.

Š

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

.

Š

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