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Alarms
Alarm Info and Alarm Clear Example:
NOTE: All alarms in the DCM3 series controllers are latching alarms
by default. Once an alarm is triggered, it must be acknowledged or
cleared. Alarm latching can be turned off in the DCM3 I/O Setup
menus.
2.04ppm
2.33ppm
7.44pH
783mV
84.5F
256gpm
STATUS ALARMS SETPNT
If an alarm is active with the red LED flashing, pressing
ALARMS
will show how many alarms there are on
the top line, and specific alarms on the 2
lines.
3 ALARMS
►1:Acid Feed
E:pH Sensor
CLRALL
INFO
CLEAR
Select the individual alarm using the ►, then press and
hold INFO button
, and LED screen will show
detailed information on each alarm.
3 ALARMS
►1:Acid Feed
E:pH Sensor
CLRALL
INFO
CLEAR
Pressing CLEAR
will clear the selected alarm
2 ALARMS
►E:pH Sensor
C:Free Chlorine
CLRALL
INFO
CLEAR
CLRALL
will clear all alarms, extinguish the flashing
red
ALARM LED, light the
the Home screen.
START / STOP key
A quick way to force all chemical feed relays to the
OFF position is to press the
LED will change to a steady
control output LEDs. To resume normal control on all
outputs, press
again. A steady
indicates normal operation with no alarms, and a
flashing
RED
LED indicates normal opreration with an
active alarm.
2.04ppm
2.33ppm
7.44pH
783mV
84.5F
256gpm
STATUS ALARMS SETPNT
3 ALARMS
►1:Acid Feed
E:pH Sensor
CLRALL
INFO
CLEAR
nd
and 3
3 ALARMS
Limit:ON timer @
00:20 2017-Aug-23
& 03:56 2017-Jul-03
2 ALARMS
►E:pH Sensor
C:Free Chlorine
CLRALL
INFO
CLEAR
2.04ppm
2.33ppm
7.44pH
783mV
84.5F
256gpm
STATUS ALARMS SETPNT
blue
OK LED, and return to
button. The status
RED
as will all the active
BLUE
status LED
Control
2.04ppm
OFF:User STOPs!
7.44pH
START restarts
84.5F
Any key exits
STATUS ALARMS SETPNT
Feeder Prime/Force OFF
Temporarily forcing a feeder ON, we call "Priming"
because that is the most frequent use of this function-
to prime a chemical feeder. The relays can also be
forced to STOP (i.e., during troubleshooting) or then be
"UNSTOPPED" to be returned to normal operation
from this menu.
2.04ppm
7.44pH
84.5F
STATUS ALARMS SETPNT
rd
To Prime or "Force ON" a relay:
From the Home screen, press
Prime, Force ON then press
MENU
Home
Adjust Setpoints
►Prime, Force ON
Enter an operator level password or higher if required,
then press
NOTE: For safety, if the feeder selected is in a timeout alarm, or
the flow switch or START/STOP button has stopped chemical feed,
you will not be able to force the feeder ON (Prime) until these
Select the feeder to Prime or STOP, then press
Prime, Force ON
1:Acid Feed
00:05:00
STOP
CAUTION: Forcing a feeder on for an extended period
The default time on the Prime duration is 5 minutes.
Change the Prime timer duration, if desired, using the
arrow keys, then press START
pump.
Pressing
returns the relay to normal control by the sensor.
Pressing STOP
forces the feeder OFF, until you UNSTOP the feeder.
2.33ppm
783mV
256gpm
2.33ppm
MENU
783mV
Home
256gpm
Adjust Setpoints
►Prime, Force ON
.
Prime, Force ON
►1:Acid Feed
2:Oxidant Feed
3:Booster Feed
.
conditions are changed.
Prime, Force ON
1:Acid Feed
00:04:59
START
STOP
can be hazardous.
CANCEL again, cancels the Prime and
not only STOPs the Prime, but also
ProMinent Fluid Controls, Inc.
Part Number 7750429 Rev.4 9/29/22
© 2022 ProMinent Fluid Controls, Inc. All Rights Reserved.
then
to select
.
CANCEL
to begin priming the
136 Industry Drive
Pittsburgh, PA 15275
412.787.2484
www.prominent.us
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