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9
TO INSTALL THE FLOW CELL
The sensor is shipped dry, and once installed and water flow has been established, the pH portion of the sensor
will become wet and stabilize, producing accurate readings within 5 minutes. To prepare the Chlorine sensor for
operation, do the following:
1.
Mount the flow cell on a vertical surface with
the arrow oriented vertically to purge air.
2.
Insert the sensor into the acrylic flow cell with
the outlet port of the sensor (see figure to the
right) facing up near the outlet of the flow cell.
3.
Seat the sensor firmly (as far as it will go).
4.
Hand-tighten the collar thread downward until
it stops. Do not force.
POSITIONING THE FLOW CELL
The flow cell must
always
be installed vertically where the outlet port points upward toward the outlet tubing
(shown below). This orientation ensures that air bubbles properly clear away from the sensor.
CONNECT DEVICES TO THE M12 CONNECTOR
Connect all digital devices (e.g., sensors and analyzers) to the device connectors on the D20 (see
electrical connectors and fittings
). Keep the unused device connector caps for future use.
Note:
Make sure that service cables do not cause a trip hazard, are too tight, or have sharp bends.
Step 4: Start up and commission
To start up and commission the system, do the following:
▪
▪
Monitor the D20 start-up on the display
▪
▪
Configure communication