Goulds Pumps CV 3171 - IOM - Manual (Page 48)

48
CV 3171 IOM 05/11
second pumps on level. This switch can be wired
into a customer-supplied alarm, horn, or light.
APEX High Level Alarm
The APEX high level alarm is an independent
device used to sense fluid level and closes a switch
activating a separate alarm. The switch is mounted
on a pipe above the support plate (Figure 47). The
pipe must extend into the sump 4-6” below the
required actuation point. As the liquid level rises in
the pipe, trapped air causes a bellows inside the
switch to inflate and trips a micro switch. The switch
can then activate a light, horn, relay, solenoid valve,
or other electric device.
Figure 47