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5.4
Auxiliary 1 and 2 Menu
The Aux 1 and 2 relays may be configured to operate in a number of ways. They may be a low alarm,
high alarm, an out-of-range alarm, an in-range output, or a probe wash.
The Aux 1 and 2 menus provides the following settings, which only appear if the appropriate output
mode is selected: Low Alarm Pt, High Alarm Pt, Probe Wash Sched, Hold Time, Mode. Refer to the
Auxiliary 1 and 2 Menu chart.
Note: When programming the controller for the first time, set the Output Control Mode first in order
to display the correct menus for that mode. Press
ENTER
to get into the Aux 1 or Aux 2 submenus,
then press
PREV
twice to get to the Mode menu.
Mode
Press
ENTER
then use the Up and Down arrows to toggle between the various choices:
Low Alarm
Press
ENTER
if you want the Aux relay to close if the process value goes below a certain value.
High Alarm
Press
ENTER
when this is displayed if you want the Aux relay to close if the process value goes
above a certain value.
Out Range Alarm
Press
ENTER
if you want the Aux relay to close if the process value goes either above or below
certain values.
In Range Output
Press
ENTER
if you want the Aux relay to close if the process value is between two values. This is
useful to open a solenoid valve if the oxidizer concentration has been corrected and you want to
empty a batch tank.
Probe Wash
Press
ENTER
if you want to use the Aux relay to interrupt control and activate a pump or valve to
clean the sensor membrane.
Lo Alarm Pt
Only appears if either the low alarm, in range output, or out range alarm mode has been selected.
Use the arrow keys to adjust the process value below which the relay will close. (In the in-range
mode, it is the process value ABOVE which the relay will close).
Hi Alarm Pt
Only appears if either the high alarm or in/out range mode has been selected.
Use the arrow keys to adjust the process value above which the relay will close. (In the in-range
mode, it is the process value BELOW which the relay will close).
Dead Band
Use the arrow keys to set the desired dead band, then press
ENTER
.
