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3D TRASAR
5500 - Installation & Operation Manual
5.3.2 Start-up Procedure for 2-Drum 3D TRASAR Scale Tagged Polymer Control
STEP 1
-
TRASAR Control Mode
• Connect the TRASAR product feed pump to TRASAR control Relay # 1.
• Connect the Tagged Polymer product feed pump to TAG POLYMER control Relay # 2.
• Connect the blowdown valve to BLOWDOWN control Relay # 6.
• At the controller, activate the “System Start-up” mode (Refer to Section 4.10.11).
• Launch the Configurator on your laptop PC and select the configuration for this system.
•
In the Configurator
Alarm Settings
window:
1. Click the
Failsafe Relay Settings
tab, set the
Blowdown Valve Timeout Limit
to a mini-
mum of 240 minutes (If the blowdown valve is not being controlled by the 3D TRASAR
controller, set the
Blowdown Valve Timeout Limit
to zero).
2. Click
OK
.
• In the Configurator
Control Settings
window:
1. Under
Installed Sensors
set the
Conductivity Probe
to
Controlling
.
2. Click the
Blowdown/pH
tab, set the
Blowdown Control Method
to
Conductivity
Setpoint
, enter the desired
Blowdown Set Point
, and accept the default control range.
3. Click the
Inhibitor
tab, set the
Number of Inhibitor Products
to
2 or more
, choose the
Product Names
, set the
Control Method
of the TRASAR Product to
TRASAR Control
,
enter the TRASAR Product
Set Point
value recommended by the 3D TRASAR Optimizer,
accept the default control range, and set the
Control Method
of the Tagged Polymer Prod-
uct to
Slaved
.
4. Still under the
Inhibitor
tab, enter the TRASAR product
Pumping Rate
(R1) and the TAG
Polymer product
Pumping Rate
(R2) according to the following equation.
Note
: Make sure
to match the calibration of the TRASAR product pump and the TAG polymer product pump
to the feed rates entered.
R2/R1 = (d1/d2) * (SP2/SP1) * 1.25
Where, R2 = TAG polymer product pump feed rate
R1 = TRASAR product pump feed rate
d1 = density of TRASAR product
d2 = density of TAG polymer product
SP2 = setpoint of TAG polymer product
SP1 = setpoint of TRASAR product
Example
: If, SP1= 20 ppm, SP2 = 80 ppm, d1=10.35, d2=9.35:
Then, R2/R1 = (10.35/9.35) * (80/20) * 1.25 = 5.53
This example shows that the Tagged Polymer product
Pumping Rate
should be 5.53 times the
TRASAR product
Pumping Rate
(i.e. TRASAR Pumping Rate = 1 gpm; Tagged Polymer Pumping
Rate = 5.53 gpm).
5. Click
OK
.
