INFICON Composer Gas Concentration Controller - Manual (Page 125)

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Composer Operating Manual
4.3.6.11 Analog I/O Option
An optional Analog I/O card is available to support the Bulk Flow Control
configuration and other features such as full time concentration read out. Refer
to
section 4.3.6.4 on page 4-25 .
4.3.6.12 Safety Ground
Refer to section 1.10.3, Electrical Grounding and Shielding Requirements, on
page 1-14 .
Š A 10-32 stud and nut used for establishing an electrical safety ground to the
Controller.
Š One of the Transducer’s four 1/4”-20 mounting holes is used as an electrical
safety ground.
NOTE: It is recommended that both the Controller and Transducer be
grounded for safety and performance reasons.
4.3.7 Parameter Entry
Parameter values may be changed through the external communications
interface or through the front panel of the optional LCD interface.
All parameters may be changed while in the STOP state. The parameters that
define the instrument’s operating environment, such as Bubbler MFC Full Scale
and the Gas Constants, can only be changed in the STOP state. Parameters
such as Control Loop Parameters and Target Setpoint can be changed at any
time. Nine sets of parameters may be defined and stored as PROG # for use at
a later time.