Honeywell 9782 Series manual Interactions affecting permitted relay assignments

Conductivity/Resistivity Analyzer/Controller

Interactions affecting permitted relay assignments

Table 1-3 is provided so that you can optimize your use of relays to implement your control strategy. Each row in the table represents an available combination of relay assignments for a single feature or multiple alarms.

ATTENTION

AutoClean and range status indication cannot be selected for use with two cells simultaneously. Your choices are:

∙For Cell 1 only, use AutoClean (Relay 1) and/or range status indication (Relay 2).

∙For both Cell 1 and Cell 2, use AutoClean (Relays 1 and 3), with no range status indication, nor any discrete control.

∙For both Cell 1 and Cell 2, use range status indication (Relays 2 and 4), with no AutoClean, nor any discrete control.

When reading the tables keep in mind the following:

∙The entry “Diagnostic” in the tables indicates that the relay can be used to indicate the unit’s failure of a self-test (see 9.4).

∙The entry “or discrete control” means that the relay can be assigned to discrete control or to one alarm. If the relay is selected for discrete control, then the alarm choice sharing the cell in the table with “or discrete control” will not be available in that row’s combination of relay assignments.

∙If the Analyzer/Controller has only two relays, then only the choices for Relay 1 and Relay 2 will be available.

1-14 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/99