Hycontrol Ltd V1.5
Page 8
5) COMMISSIONING
5.1) Setting-Up
There is very little to set up as in most cases the sensor can be fitted without any
adjustment. However there are adjustments for sensitivity and response time, should they be
needed. To test the sensitivity arrange for the foam to increase to reach the sensor. The
sense electrode at the send of the sensor is the sensitive part. Once the foam makes a good
contact with the sense electrode the probe should be able to detect the foam. If it’s
impractical to make foam for a test then a simple test is to touch the end of the sensor
against the wall of the tank. This is a very coarse test and does not show that it will measure
the foam, however it will trigger the sensor to allow the connections to be tested.
If the test above does not trigger the sensor then there is almost certainly an earth return
problem.
5.2) Sensitivity Setting
The sensitivity can be set by the small adjuster in the head. The adjustment is from 0 –9
where 0 is the lowest sensitivity. The factory setting of 5 is suitable for most applications.
However if the foam is very light the sensitivity may need to be increased. Alternatively with
very dense sticky foam it is advisable to reduce the sensitivity. See Table 1 below for more
details of the sensitivity settings. .
If the sensor is in contact with foam but does not trigger then increase the sensitivity
setting to a higher figure.
Table 1 Sensitivity Adjustment – SW2
Sensitivity Setting
Application
0
Liquid
Lowest Sensitivity
1
Very dense heavy foam
2
Processed food with high salt level
3
Waste water with high solids
4
Waste water
5
Most applications
Default Setting
6
7
Light foam from detergent
8
9
Very light foam
Highest Sensitivity
