ProMinent DCM3 Series Quick Start Manual

DCM3 Series Controller
Quick Start Guide
CAUTION
Before attempting calibration or commissioning of the DCM3 control system,
water chemistry must be stable and within normal operating ranges of 7.2-7.8
pH, Free Chlorine at 1-5 ppm, and Total Alkalinity level at 80-120 ppm.
Calibrations
pH Single Point Calibration Example

2.04ppm 2.33ppm
7.44pH 783mV
84.5F 256gpm
STATUS ALARMS SETPNT
Press the button, then use the arrow buttons
to scroll to pH sensor E, then press
Login with your password, if requested.
Next, take a water test and using the
enter the results, one decimal
E:pH Sensor
Enter value
place at a time, followed by the
7.66pH
SAVE MORE
SAVE
will indicate Sensor
Calibrated. Press NEXT
sensor to be calibrated, or press ESC twice to return to
the Home screen.
ORP input is factory calibrated and cannot be
re-calibrated in the field.
Free Chlorine
Single Point Calibration Example
NOTE: The Free Chlorine calibration routine is
designed to optimize a DPD calibration by
remembering the ppm value at the moment the DPD
button is pressed.
Press the
C:Free Chlorine
Sample & press DPD
2.2ppm
DPD MORE
the
Free Chlorine, then press
Login with your password, if requested.
When ready, remember to press the DPD
first, to instruct the calibration to
C:Free Chlorine
save the sensor reading. A timer
DPD wait: 25sec
is then started on the display for
2.2ppm
SAVE MORE
your use. Once the Free
Chlorine value is measured,
enter the results using the arrow buttons, followed by
the SAVE key.
If the calibration is accepted, the LED screen will then
indicate Sensor Calibrated. Press NEXT
continue to the next sensor to be
C:Free Chlorine calibrated, or
Sensor Calibrated
to the Home screen.
NEXT
.
buttons,
key. The LED screen
to continue to the next
button, then use
buttons to scroll to C:
.
button
to
twice to return
Status LED
Steady Blue = Normal
Flashing Red = Alarm
Steady Red = An output relay is Forced OFF
Adjusting Setpoints
pH Setpoint Example:
Set points menu is located in the outputs that control
the feeders.
By default, and in our example, the pH feeder is
assigned to Relay 1: Acid Feed.
To change the pH set point, press the SETPNT
buttons to point to the ►
button. Use the
Feed relay, then press
1:Acid Feed
Adjust Setpoint
7.4pH
DEDBND
change the pH Setpoint, then press
new setting.
Deadband:
Deadband is the control overlap necessary to keep a
feeder from turning on and off too rapidly, sometimes
called "chattering".
By default, the pH feeder is assigned a deadband of
0.10 pH. This means the pH must deviate 0.10 pH
above the setpoint before the acid feeder will turn on.
The default deadband for ORP is 5mV and the Free
Chlorine deadband is 0.5 ppm.
The control deadbands do not normally need to be
changed after being set by your ProMinent technician
during startup.
Refer to the Operation and Installation manual for more
information on the Deadband and its function.
1:Acid
.
Login with your password if
requested, then press
Use the buttons to
to save the
.