Ver 5.0 EC Mini Controller Installation Guide (September 2020)
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Maintenance
Cleaning the EC Probe
Clean the face of the probe. Remove the shroud from the end of the probe and
use a little kitchen liquid scouring cleaner such as “Jif" or "SoftScrub” on a
clean
“Scotchbrite” nylon scouring pad. Alternatively, use 600 grit wet
-and-dry paper
with the cleanser. Use a circular motion to scour the face of the probe and then
rinse well in running water. Do not touch the face of the probe with your fingers,
shake off any residual water. Replace the shroud.
Calibrating EC
Every week you should check the EC calibration. To do this, place the probe in the
EC 2.7 (CF 27) standard solution and allow to stand for 5 minutes. The reading
should be 2.8 +/- 0.1 mS/cm. If not, navigate to the calibration screen, hold in the
edit key, and use the up/down arrows to correct the displayed reading. When the
edit button is released, the new calibration will be saved.
Peristaltic Pump Maintenance
These require very little maintenance. It is important to lubricate the inner
peristaltic tubing every 3-4 months. Simply pinch the sides of the pump head
to remove it from the motor. Put 2-3 drops of lubricant on the tube at each
roller point. This lubricant can be purchased via your distributor.
General Maintenance
Frequently inspect your system for leaks, repair as soon as possible. Water
dripping onto power supplies or pumps could cause them to fail. Ensure the
controller, pump unit and power supply are kept clean and shielded from all water
splashes and vapours.
