Figure 8 Canister end cap removal
3.
Use a cotton swab to remove the anti-fouling cartridge.
4.
Clean the canister with a lint-free tissue or canned air.
5.
Put the new anti-fouling cartridge in the canister.
6.
Replace the end cap of the canister.
7.
Attach the tubing to the canister.
8.
Attach the tubing to the right-angle hose barbs.
4.3 Clean ECO sensors
The procedures to clean or replace the anti-fouling wipers on the
ECO
sensors in the
WQM and the WQMx are similar.
•
The WQM has an integrated
ECO
two-parameter sensor with a solid Bio-wiper that
covers the optics of the sensor. The wiper can be cleaned or replaced. Refer to the
section on
Clean Bio-wiper and faceplate
on page 25 for details.
•
The WQMx has an integrated
ECO
three-parameter sensor with a three-legged
wiper. Both the wiper and the wiper motor can be replaced. Refer to the section on
Wiper replacement
on page 27 for details.
4.3.1 Clean Bio-wiper and faceplate
Sensors that have copper faceplates and copper Bio-wipers need to be cleaned at
regular intervals to keep the copper effective as an anti-fouling aid. Remove the Bio-wiper
and faceplate from the sensor to clean them.
N O T I C E
Do not twist the Bio-wiper or the Bio-wiper shaft by hand. Push
Open Shutter
and
Close Shutter
in the software to turn the Bio-wiper. Turning by hand will damage the Bio-wiper motor.
1.
Disconnect the sensor from any power source.
2.
Use the manufacturer-supplied 3/32" hex key to loosen the screw that holds the Bio-
wiper to the sensor.
If necessary, insert the manufacturer-supplied jacking screw into the expander hole to
loosen the Bio-wiper.
PAR sensors do not have an expander hole and do not ship
with jacking screws.
Sensor maintenance
25
