Hycontrol Ltd V1.5
Page 9
5.3) Response Time
The response time is the time taken by the sensor to respond to foam. The factory set
response time is 4 seconds. This is optimum for most applications and allows sufficient time
for rejection of splashing and spurious triggers. However in rare cases foam can build up
within a few seconds to a high level for which 4 seconds may be too slow. Typical fast
applications are vacuum cooling and gas stripping. To change the response time remove the
small white link on sw2 and refit as shown below. In cases of high splashing the response
time can be increased to 10 seconds. See table 2 below.
Table 2 – Response Time adjustment
Application
Response
Setting SW1
Almost all
Standard – 4 seconds
Vacuum cooling
Fast – 1 second
Effluent
Slow – 10 seconds