Flowline AX18 Switch-Pro - Manual (Page 6)

Step Seven Step Eight
MAINTENANCE
General: The Switch Pro™ with Compact Junction Box requires
no periodic maintenance except cleaning as required. It is the respon-
sibility of the user to determine the appropriate maintenance schedule,
based on the specific characteristics of the application liquids.
Cleaning Procedure:
1. Power: Make Sure that all power to the sensor, controller and/or
power supply is completely disconnected.
2. Sensor Removal: Make sure that the tank is in a state where it
is safe to remove the sensors. Carefully, remove the Switch Pro™
from the installation.
3. Cleaning the Sensor: Use a soft bristle brush and mild deter-
gent, carefully wash the Switch Pro™. Do not use harsh abrasives
such as steel wool or sandpaper, which might damage the surface
sensor. Do not use incompatible solvents which may damage the
sensor's PP or Ryton plastic body.
4. Sensor Installation: Follow the appropriate steps of installa-
tion as outlined in the installation section of this manual.
Testing the installation:
1. Power: Turn on power to the switches and/or power supply.
2. Immersing the switch: Immerse the sensing tip of each switch
in its application liquid, by filling the tank up to the switches point
of actuation. An alternate method of immersing the switch during
preliminary testing is to hold a cup filled with application liquid
up to the switch's tip.
3. Test: With the switch being fluctuated between wet and dry
states, the switch will open or close depending on wiring status.
If the system doesn't have an input indicator, use a multimeter to
ensure that the switch produces the correct signal.
Current Test (Ultrasonic and Vibration only):
Used to verify if the sensor is indicating a wet or dry condition. This
test uses only two wires (Red and Black). The sensor draws 5 mA
(ultrasonic) or 8 mA (vibration) when it is dry, and 19 mA when wet.
The White and Green wires are not used.
Red
24 VDC
Power Supply
+
-
Multimeter
(mA)
-
+ +
Black