ATI
Q46H/65 Residual Chlorine Dioxide System
Part 6
– Configuration
39
O&M Manual
Rev-J (11/18)
Iout#1 Mode
This function sets analog output #1 to either track ClO
2
(default) or
enables the PID controller to operate on the ClO
2
input. Press ENTER to
initiate user entry mode, and the entire value will flash. Use the UP
arrow key to modify the desired value; selections include 1-ppm for ClO
2
,
2-PID for PID output. Press ENTER to store the new value.
Iout#2 Mode
This function sets analog output #2 for temperature (default), ClO
2
, or
pH. Press ENTER to initiate user entry mode, and the entire value will
flash. Use the UP arrow key to modify the desired value; selections
include 1-C/F for temperature, 2-ppm for ClO
2
, or 3-pH for pH. Press
ENTER to store the new value.
*Iout#3 Mode
OPTIONAL.
This function sets analog output #3 for temperature
(default), ClO
2
, or pH. Press ENTER to initiate user entry mode, and the
entire value will flash. Use the UP arrow key to modify the desired value;
selections include 1-C/F for temperature, 2-ppm for ClO
2
, or 3-pH for pH.
Press ENTER to store the new value.
Rly A Mode
Relay A can be used in three different ways: as a setpoint control, as a
fail alarm, or as a HI-LO alarm band. The three settings for Rly A Mode
are
CON
,
FAIL
and
AL
.
The
CON
setting enables normal control operation for Relay A, with
settings for setpoint, hysteresis, delay and phasing appearing in the
CONFIG menu automatically. See Figure 25 for further details.
The
FAIL
setting enables the fail alarm mode for Relay A. Relay A will
then trip on any condition that causes the FAIL icon to be displayed on
the LCD. Using this mode allows the User to send alarm indications to
other remote devices.
The
AL
setting allows two setpoints to be selected for the same relay,
producing a HI-LO alarm band. In this mode, Relay A will trip inside or
outside of the band, depending upon the Phase selected. See Figure 26
for further details.
Relay B Mode
Relay B and C can be used in two ways: as a setpoint control, or as an
Relay C Mode
alarm. The two settings for Relay B Mode are
CON
and
FAIL
. The
CON
setting enables normal setpoint operation for Relay B/C. Relay B/C then
operates identically to Relay A, with settings for setpoint, hysteresis,
delay and phasing appearing in the CONFIG menu automatically. See
Figure 25 for details.
The
FAIL
setting enables the fail alarm mode for Relay B/C. Relay B/C
will then trip on any condition that causes the FAIL icon to be displayed
on the LCD. Note that the Relay C indicator shows up only on the lower
screen of the display next to the temperature reading. This is because
the default setting for relay C is the
FAIL
setting. Using this mode allows
the User to send alarm indications to other remote devices. See Figure
26 for details.
