IPS Controllers M720 - Page 13

c. Drill a 7/16” hole and tap a 1/4” NPT port to a locaon
downstream from the lter and upstream from any
chemical introducon points. Install a tubing connector
(included) and ex tubing to be connected to the le
side ow cell port containing the ow switch. The in-line
lter will also be installed in this line and mounted to a
horizontal pipe with band clamps (included). Note: Verify
that the lter is installed with direconal arrows poinng
in the direcon of the ow.
d. Drill a 7/16” hole and tap a 1/4” NPT port to a locaon that
is subject to vacuum or reduced pressure. Install a tubing
connector (included) and ex tubing to be connected to
the right side ow cell port. Note: We recommend that
this tubing connector be installed into the drain hole on
the sucon side of the pump for best performance.
e. Cut a 3” - 6” length of ex tubing and insert into the ow
cell’s sample stream port (center).
3. pH and ORP Sensors
Note: Carefully unpack the pH and ORP sensors and set aside in a
clear area unl ready to install into the ow cell.
a. Verify that the M720 controller power is OFF.
b. Carefully remove the plasc protecve caps from the
sensors and store in a separate locaon for future re-use.
c. Slide the glass end of each sensor (pH and ORP) into their
corresponding compression ngs located at the top of
the ow cell. Ensure that the p is submerged into the
water to within 1/2” from the boom of the ow cell.
Hand ghten each nut ng.
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M720 pH/ORP Controller Owner’s Manual